Python - NumPy is the fundamental package for scientific computing with Python. GitHub

Python - SciPy (pronounced “Sigh Pie”) is a Python-based ecosystem of open-source software for mathematics, science,…

Python - pandas is an open source, BSD-licensed library providing high-performance, easy-to-use data structures and…

Python - Polars is a blazingly fast DataFrame library for manipulating structured data. GitHub

Python - Domain specific language for quantitative analytics in finance and trading.

Python - Builtin Python library for all basic statistical calculations.

Python - SymPy is a Python library for symbolic mathematics. GitHub

Python - Probabilistic Programming in Python: Bayesian Modeling and Probabilistic Machine Learning with Theano. GitHub

Python - Python reimagination of spreadsheets as formula-centric objects that are interoperable with pandas. GitHub

Python - High performance datastore for time series and tick data.

Python - Contingency Random Number Generator that produces random numbers with real financial market statistical…

R - eXtensible Time Series: Provide for uniform handling of R's different time-based data classes by extending zoo,…

R - Extension of data.frame: Fast aggregation of large data (e.g. 100GB in RAM), fast ordered joins, fast…

R - Sparse principal component analysis.

R - Provides a common interface to time series databases.

R - Time Series Analysis and Computational Finance.

R - S3 Infrastructure for Regular and Irregular Time Series (Z's Ordered Observations).

R - Functions and S3 classes for time indexes and time indexed series, which are compatible with FAME frequencies.

R - Utilities for simple manipulation and quick plotting of time series data.

R - A kernel of functions for programming time series methods in a way that is relatively independently of the…

Julia - Flexible and efficient time series class & methods.

Julia - In-memory tabular data in Julia.

Julia - Handle timeseries data on top of the powerful and mature DataFrames.jl.

Julia - Time series handling for Julia.

Python MCP - Exact computation and conjecture testing across polynomial maps, linear algebra, and graph algorithms for…

Python - QuantLib's Python port.

Python - vollib is a python library for calculating option prices, implied volatility and greeks.

Python - vollib Python implementation.

Python - Fast, vectorised Black-Scholes-Merton and Bachelier pricers and implied volatility fitters, including inverse…

Python - Pricing analytics and Monte Carlo simulation for stochastic volatility models, including the log-normal SV…

Python - A framework for quantitative finance In python.

Python - Python tools for Finance.

Python - A financial function library for Python.

Python - Lightweight Python library for assembling and analyzing financial data.

Python - Toolkit for integration and analysis.

Python - SABR model Python implementation.

Python - A Python Finance Library that focuses on the pricing and risk-management of Financial Derivatives, including…

Python - Python toolkit for quantitative finance.

Python - Robust and flexible Python implementation of the willow tree lattice for derivatives pricing.

Python - Applications of Monte Carlo methods to financial engineering projects, in Python.

Python - A library for financial options pricing written in Python.

Python - High-performance TensorFlow library for quantitative finance.

Python - A Python library for mathematical finance.

Python - Tools for pricing and plotting of vanilla option prices, greeks and various other analysis around them.

Python - Complete python implementation of R package fOptions with partial implementation of fExoticOptions for…

Python - PME (Public Market Equivalent) calculation.

Python - A Python based library to model cashflow for structured product like Asset-backed securities (ABS) and…

Python - Cent-accurate mortgage amortization schedules with Decimal arithmetic and published-source validation across…

Python - A Python tool for quick calculations of a stock's fair value using Discounted Cash Flow analysis.

Python - Kelly Criterion implemented in Python to size portfolios based on J. L. Kelly Jr's formula.

Python - A fixed income library for pricing bonds and bond futures, and derivatives such as IRS, cross-currency and FX…

Python - Vanilla and exotic option pricing library to support quantitative R&D. Focus on pricing interesting/useful…

Python - Toolkit for option pricing, implied volatility surfaces, risk-neutral densities, and pricing kernel surfaces…

Python - High-performance pricing engine built on QuantLib. It exposes QuantLib's functionality through gRPC and REST…

Python - A Python library for evaluating option trading strategies.

Python - Python client for the FlashAlpha options analytics API.

Python - Free quant finance API with 63 deterministic endpoints + 15 free interactive calculators at quantoracle.dev.…

Python - Multi-factor quantitative stock analysis MCP server for US, HK, and CN A-share markets. Transparent 0-100…

Python - Reverse DCF that solves for the revenue growth, duration, and operating margin a stock price implies, from…

R - RQuantLib connects GNU R with QuantLib.

R - Quantitative Financial Modelling Framework. GitHub

R - The premier open source software solution for teaching and training quantitative finance.

EBM and Asian Option Valuation.

Analysing and Modelling Financial Assets.

Markets and Basic Statistics.

Bonds and Interest Rate Models.

Exotic Option Valuation.

Pricing and Evaluating Basic Options.

Portfolio Selection and Optimization.

R - Simulation and Inference for Stochastic Differential Equations.

R - Modelling and estimation of the yield curve.

R - Constructs a yield curve by the Smith-Wilson method from a table of LIBOR and SWAP rates.

R - Yield curve or zero-coupon prices interpolation and extrapolation.

R - This package includes pricing function for selected American call options with underlying assets that generate…

R - Pricing a variance swap on an equity index.

R - Risk Neutral Density Extraction Package.

R - American options pricing with Least Squares Monte Carlo method.

R - Estimation of value and hedging strategy of call and put options.

R - Time Value of Money Functions.

R - Option Pricing with Efficient Simulation Algorithms.

R - Credit Default Swap Functions.

R - Functions and R Code to Accompany Derivatives Markets. GitHub

R - Package for time value of money calculation, time series analysis and computational finance.

R - R code for quantitative analysis in finance.

R - options trading studies functions for use with options.data package and shiny.

R - Financial Market Building Blocks.

R - Fixed income tools for R.

Julia - Quantlib implementation in pure Julia.

Julia - A financial contract definition, modeling language, and valuation framework.

Java - Modern open-source analytics and market risk library designed and written in Java. GitHub

Java - JQuantLib is a free, open-source, comprehensive framework for quantitative finance, written in 100% Java.

Java - Java library with algorithms and methodologies related to mathematical finance. GitHub

Java - Free Java components for Quantitative Finance and Algorithmic Trading.

Java - Fixed Income, Asset Allocation, Transaction Cost Analysis, XVA Metrics Libraries.

JavaScript - A JavaScript library for common financial calculations.

TypeScript - SABR stochastic-volatility model (Hagan 2002 lognormal/normal expansions, Obłój correction, smile…

TypeScript - Gatheral SVI volatility surface (raw/natural/jump-wings), butterfly and calendar arbitrage checks, slice…

TypeScript - SOFR compounding-in-arrears per ARRC/ISDA conventions (lookback, observation shift, lockout) and the SOFR…

TypeScript - ISDA 2006 day-count conventions (30/360 family, ACT/360, ACT/365F, ACT/ACT ISDA and ICMA); zero…

TypeScript - US TIPS inflation math per 31 CFR 356 Appendix B (reference-CPI interpolation, index ratios); reproduces…

TypeScript - US Treasury price quote math: parse and format 32nds quotes (105-16+), ticks, and basis points; zero…

Haskell - quant finance in pure haskell.

Haskell - Excel Addin for Haskell.

Haskell - A financial maths library in Haskell.

Scala - Scala Quantitative Finance Library.

Scala - Scala library for working with stock data from IFTTT recipes or Google Finance.

Rust - Financial maths library for risk-neutral pricing and risk.

Rust - Quantitative finance library written in Rust.

Python - Finite difference pricing library written in Rust.

Python - A Python Pandas implementation of technical analysis indicators.

Python - Financial Technical Analysis Indicator Library (Python bindings for tulipindicators).

Python - A Python module for fitting the Log-Periodic Power Law Singularity (LPPLS) model.

Python - Incremental technical analysis library for Python.

Python - A python library for computing technical analysis indicators on streaming data.

Python Rust Polars - Polars-native technical analysis and backtesting with bit-identical batch and streaming parity,…

Python - Python wrapper for TA-Lib (https://ta-lib.org/).

Python - Technical Analysis Library using Pandas (Python).

Python - Technical Analysis library in pandas for backtesting algotrading and quantitative analysis.

R - Technical Trading Rules.

Julia - A Julia wrapper for TA-Lib.

Julia - Financial market technical analysis & indicators on top of Temporal.

Julia - Visualize OnlineTechnicalIndicators.jl using LightweightCharts.jl.

Julia - Technical analysis of financial time series on top of TimeSeries.

Julia - Julia Technical Analysis Indicators via online algorithms.

Java - A Java library for technical analysis.

JavaScript - Indicator is a TypeScript module providing various stock technical analysis indicators, strategies, and a…

JavaScript - Orderflow trade aggregator for building Footprint Candles from exchange websocket data.

Golang - IndicatorGo is a Golang module providing various stock technical analysis indicators, strategies, and a…

Rust - Aggregate trades into user-defined candles using information driven rules.

Rust - Chainable tree-like sliding windows for signal processing and technical analysis.

Rust - Financial market primitives in Rust: Price/Quantity/Symbol newtypes, BTreeMap order book, OHLCV aggregation,…

Rust Python JavaScript C++ C# Golang Java R - Streaming-first technical-analysis library with a Rust core: 514…

REST MCP - Stateless OHLC analyzer: POST bars and requested indicators, get back…

Python - Bybit perpetual-futures trading bot with volume-spike detection, new-listing monitoring, staged take profits,…

Python - Local-first macOS workbench for A-share and US stock strategy screening, paper trading, position sizing, and…

Python - Trading-strategy research framework with iterative proposal generation, backtesting, SQLite memory, holdout…

Python - Catalogue of twenty-seven position-exit policies (stop-loss, take-profit, time, volatility, signal-reversal…

Python - Local-first deterministic tuition memory for traders: pattern-matched reminders, no LLM, overridable rule…

Python - Estimates fees and impermanent loss for concentrated-liquidity pools whose volatile assets can be hedged,…

Go WebAssembly - Embeddable limit order book and matching engine with integer-exact pricing, a single-writer core and…

Java Spring Boot - Streaming backtesting engine for short-duration index options with conservative five-minute…

Python - Multi-agent paper-trading framework where LLM agents author orders and a separate broker process enforces…

Python Rust - High-performance Rust-powered backtesting engine for quantitative research with parameter sweeps,…

TypeScript - Self-hosted market-alert daemon: price, RSI/MACD/SMA conditions, and full Pine Script v5 custom…

Python - Robinhood API client for unattended automation: after the first approved login, sessions renew from a stored…

Python - Scores detected chart patterns against the pattern-free baseline for the same market, timeframe and horizon,…

Python - Linter for mechanical trading-rule conditions: replays every condition over historical bars to catch…

Python - Binance-style trading terminal with multi-strategy backtesting and a real-time, signal-only decision desk for…

Python - scikit-learn-compatible purged, group-purged, and combinatorial purged (CPCV) cross-validation, walk-forward…

TypeScript - MCP server returning composite crypto trade verdicts (direction, confidence, regime) across 5…

Python - Unofficial CLI and async SDK for the Capital.com broker API: market data, guarded order execution, and…

Python TypeScript - Self-hosted visual algo-trading platform featuring a drag-and-drop strategy builder, an AI…

Python TypeScript - Conversational multi-agent quant framework where agents rank currently-effective factors for entry…

Python - Systematic options trading intelligence for small accounts with desk-based portfolio management, pre-trade…

Python - AI auto-trading bridge for East Money's miaoxiang (妙想) China A-share simulation platform; BYOK multi-LLM…

Python - Multi-agent LLM trading analysis where 12 AI agents (analysts, debaters, risk manager) debate stock picks in…

Python - Self-hosted AI trading platform with strategy evolution, technical analysis, backtesting, and paper trading…

Python - AI trading operating system with 9 ML models (RF, XGBoost, EMAformer, MOIRAI-2, Chronos-2, DDPM, PPO RL, GNN,…

Python - Natural-language multi-agent finance research agent with 29 swarm presets, 70 skills, and 28 auto-discovered…

Python - AI crypto trading bot for Bybit with 70.9% walk-forward validated accuracy on out-of-sample data, LightGBM +…

Python - Self-hosted execution engine for algorithmic trading bots. Write strategies in Python, TypeScript, Rust, C++,…

Python - Tamper-evident SHA-256 hash-chain audit log and human-readable report for AI trading-agent decisions;…

Python - Framework for developing, backtesting, and deploying automated trading algorithms.

Python - Algorithmic trading framework where the same code runs for backtesting and live trading across stocks,…

Python - QSTrader backtesting simulation engine.

Python - Fully integrated backtesting, paper trading, and live deployment.

Python - Pythonic algorithmic trading library.

Python - Zipline, a Pythonic Algorithmic Trading Library.

Python - Python-based open source software framework designed to support portfolio construction and management.

Python - Quantitative finance, and backtesting library.

Python - Flexible Backtesting for Python.

Python - Performance analytics, portfolio backtesting, risk analysis, and factsheet reporting.

Python - Python Backtesting library for trading strategies.

Python - Actively maintained, high-performance backtesting and live trading framework with AI-assisted strategy…

Python - Closed-form expected returns, Sharpe ratios, and skewness of trend-following systems, with complete…

Python - Checks whether backtest price data is survivor-only: dead-name detection, measured bias benchmarks, CI…

Python - Hash-chained pre-registration and falsification ledger for research claims: write down what evidence would…

Python - A Python async and event driven framework for algorithmic trading, with a focus on crypto currencies.

Python - This is an execution engine for algo trading.

Python - Python library for backtesting trading strategies and analyzing financial markets.

Python - Computer program to automatically trade binary options martingale style.

Python - the project using sql, pandas to provide an uniform and extendable way to record data, computing factors,…

Python - zipline-compatible live trading library.

Python - Zipline extensions and adapters for QuantRocket.

Python - Vectorized backtester and trading engine for QuantRocket based on Pandas.

Python - A fast, extensible, transparent python library for backtesting quantitative strategies.

Python - Python library for backtesting technical/mechanical strategies in the stock and currency markets.

Python - A backtester and spreadsheet library for security analysis.

Python - AI-powered stock analysis system with 13 specialized agents, automated trading via KIS API, supporting Korean…

Python - Community fork of NeuZhou's quantitative finance toolkit with backtesting, paper trading, and command-line…

Python - AI-powered Taiwan stock scanner for all 1,900+ TWSE/TPEX listed stocks; chips module (T86 institutional net…

Python - Async Algorithmic Trading Engine.

Python - Backtest trading strategies in Python.

Python - Portfolio analytics for quants, written in Python.

Python - Modern variation of quantstats, with additional features and performance improvements.

Python - Python-based framework for backtesting trading strategies & analyzing financial markets [GUI :neckbeard:.]

Python - Free, open source crypto trading bot.

Python - Free pandas and scikit-learn resources for trading simulation, backtesting, and machine learning on financial…

Python - An AI-oriented Quantitative Investment Platform by Microsoft. Full ML pipeline of data processing, model…

Python - Python package for Taiwan stock market data, factor research, and vectorized backtesting with pandas-style…

Python - Code and resources for Machine Learning for Algorithmic Trading.

Python - Automated Machine Learning [AutoML] with Python, scikit-learn, Keras, XGBoost, LightGBM, and CatBoost.

Python - An advanced crypto trading bot written in Python.

Python - A extendable, replaceable Python algorithmic backtest && trading framework supporting multiple securities.

Python - A Deep Reinforcement Learning Library for Automated Trading in Quantitative Finance. NeurIPS 2020.

Python - Reinforcement learning stock-selection framework for the China A-share market with multi-source factor input…

Python - Deep Learning based Python Library for Stock Market Prediction and Modelling.

Python - Automated trading system for NOPE strategy over IBKR TWS.

Python - Open source cryptocurrency trading bot for high frequency, arbitrage, TA and social trading with an advanced…

Python - A library built with backtest portability and performance in mind for backtest trading strategies.

Python - QF-Lib is a Python library that provides high quality tools for quantitative finance.

Python - Gather data and trade equities, options, and ETFs via TDAmeritrade.

Python - Find your trading edge, using a powerful toolkit for backtesting, algorithmic trading, and research.

Python C# - Lean Algorithmic Trading Engine by QuantConnect (Python, C#).

Python - pysystemtrade is the open source version of Robert Carver's backtesting and trading engine that implements…

Python - Detect trend in time series, drawdown, drawdown within a constant look-back window , maximum drawdown, time…

Python - Fully functioning fast Limit Order Book written in Python.

Python - Algorithmic Trading with Machine Learning.

Python - A quant framework to create cryptocurrencies strategies - from backtesting to optimization to livetrading.

Python - A high-frequency trading and market-making backtesting tool accounts for limit orders, queue positions, and…

TypeScript Python - Dependency-free market-microstructure metrics: order-flow imbalance (OFI), VPIN,…

Python - Realistic limit-order fill simulator for options credit/debit spreads with post-and-wait limits, stale-quote…

Python - VeighNa is a Python-based open source quantitative trading system development framework.

Python - Automatically generating signals and trading based on machine learning and feature engineering.

Python - fastquant allows you to easily backtest investment strategies with as few as 3 lines of python code.

Python Rust - A high-performance algorithmic trading platform and event-driven backtester.

Python - Reproducible negative-result benchmark: no model beats a memoryless synthetic binary-options feed (AUC ≈…

Python - Yet Another (Python) BackTesting Engine.

Python - TradingStrategy.ai is a market data, backtesting, live trading and investor management framework for…

Python C++ - A base on Python/C++ open source high-performance quant framework for faster analysis and backtesting,…

Python - A high performance, low-latency backtesting engine for testing quantitative trading strategies on historical…

Python - Toolkit for quantitative trading analysis. It integrates an advanced market screener, a multi-strategy,…

Python - An open‑source, broker‑agnostic Python library that lets you seamlessly deploy strategies from any major…

Python - Python algorithmic trading bot framework for Kubernetes: backtesting, hyperparameter optimization, 150+…

Python - Example strategies for the QTradeX platfrom.

Python - AI-powered SDK featuring algorithmic trading, backtesting, deployment on 100+ exchanges, and multiple…

Python - A lightweight, event-loop-style backtest engine that allows a function-driven imperative style using…

Python - AI-powered trading edge discovery platform that validates trading ideas with event studies, statistical…

Python - High-performance analytical core using LLVM JIT (Numba) to process large-scale telemetry for quant diagnostics.

Python - Local-first backtesting engine with built-in overfitting checks (PBO, deflated Sharpe, bootstrap CI,…

R - Exploring Portfolio-Based Conjectures About Financial Instruments.

R - Performance Attribution for Equity Portfolios.

R - Enhanced Quantitative Trading Modelling.

R - Transaction infrastructure for defining instruments, transactions, portfolios and accounts for trading systems and…

R - Transaction-oriented infrastructure for constructing trading systems and simulation. Provides support for…

Matlab - Integrated Quantitative Toolbox with Matlab.

Matlab - Quant Option Pricing - Exotic/Vanilla: Barrier, Asian, European, American, Parisian, Lookback, Cliquet,…

Julia - Blazing fast Julia backtester.

Julia - Modular, asynchronous trading engine in pure Julia.

Julia - Trading framework built around CCXT with Zarr-backed OHLCV persistence, contiguity-checked data feeds,…

Julia - Quantitative systematic trading strategy development and backtesting.

JavaScript Python PHP - A JavaScript / Python / PHP cryptocurrency trading API with support for more than 100…

Python - Async Python connector for Binance Spot FIX sessions with Order Entry, Market Data, and Drop Copy support.

Ruby - Open Source Forex algorithmic trading framework using OANDA REST API.

Elixir/Erlang - Open Source composable, real time, market data and trade execution toolkit.

Elixir/Erlang - From Idea to Execution - Manage your trading operation across a globally distributed cluster.

Elixir/Erlang - An open and opinionated trading platform using productive & familiar open source libraries and tools…

CPP - C++ 17 based framework/library (with sample applications) for testing options based automated trading ideas…

CPP - A production-grade, lock-free, high-frequency trading matching engine achieving 150M+ orders/sec.

CPP - A C++ CTP trading framework, with very clear logic.

CPP - C++23 FIX protocol engine with zero-copy parsing and SIMD acceleration, 3x faster than QuickFIX.

CPP - Enterprise-grade deterministic state synchronization engine for MFT gateways and statistical arbitrage.…

CSharp - Algorithmic trading and quantitative trading open source platform to develop trading robots (stock markets,…

CSharp - Free, open-source .NET Client for the TD Ameritrade Trading Platform. Helps developers integrate TD…

Rust - Open-source Rust framework for building event-driven live-trading & backtesting systems.

Rust - Simulated perpetual futures exchange to trade your strategy against.

Python - Local event-driven backtesting engine with no-code strategy builder and FRED vintage, ALFRED, yFinance support.

Node.js TypeScript - Open-source self-hosted AI trading signal platform. Generates buy/sell signals using RSI, MACD,…

Python Rust TypeScript - Open-source native macOS market cockpit. 12-timeframe consensus scan across 3370 symbols…

Python Kotlin - Binance perpetual-futures scanner with technical-indicator consensus, multi-timeframe analysis, and…

Python - Contamination-resistant A-share backtesting environment for LLM trading agents with point-in-time masking,…

Python - A reasoning & decision-trace visible Multi-agent LLM trading-research framework where bull/bear analysts…

Python REST MCP - MetaTrader 5 in a Windows VM (Docker + QEMU/KVM) over REST and MCP: market data,…

Python REST MCP - Interactive Brokers over REST and MCP (FastAPI + ib_async over a Linux-native IB Gateway): market…

Python AI Agent-Skills - Library of 501 agentskills.io-format skills giving AI coding agents trading-infrastructure…

Python - Portfolio optimization framework combining covariance shrinkage, bootstrap aggregation, and parametric…

Python - An agentic framework that mimics the real quant trading pipeline to find alpha: economic hypothesis,…

Python - Python library for portfolio optimization built on top of scikit-learn. It provides a unified interface and…

Python - Financial portfolio optimization in python, including classical efficient frontier and advanced methods.

Python - Sparse multi-asset factor models with cell-level sign constraints, prior-centred shrinkage, and hierarchical…

Python - Optimisation analytics for constructing and backtesting optimal multi-asset portfolios: covariance…

Python - Eiten is an open source toolkit by Tradytics that implements various statistical and algorithmic investing…

Python - Fast and scalable design of risk parity portfolios.

Python - Implementations regarding "Advances in Financial Machine Learning" by Marcos Lopez de Prado. (Feature…

Python - Portfolio optimization with deep learning.

Python - Dynamic mean-variance portfolio allocation under regime-switching jump-diffusions with wealth floors, solved…

Python - Fast risks with QuantLib.

Python - Automatic Differentation (AAD) Library.

Python - Portfolio and risk analytics in Python.

Python - Terminal-based ETF research and portfolio analytics application for holdings, exposure, concentration,…

Python - Common financial risk and performance metrics.

Python - Computational tools for financial economics include: Gaussian Mixture model of leptokurtotic risk, adaptive…

Python - Financial Risk Calculations. Optimized for ease of use through class construction and operator overload.

Python - Quantitative Financial Risk Management: awesome OOP tools for measuring, managing and visualizing risk of…

Python - Portfolio construction and quantitative analysis.

Python - This tool is used to visualize the performance of a portfolio.

Python - Collection of algorithms for online portfolio selection.

Python - A program for financial portfolio management, analysis and optimization.

Python - Portfolio backtesting, optimization, and risk and performance analysis.

Python - Risk tools for use within the crude and crude products trading space with partial implementation of R's…

Python - Portfolio Optimization and Quantitative Strategic Asset Allocation in Python.

Python - Common financial risk and performance metrics. empyrical fork.

Python - Portfolio and risk analytics in Python. pyfolio fork.

Python - Quantitative performance and risk analytics with 150+ metrics, portfolio optimization, Monte Carlo…

Python - Conditional Value-at-Risk (CVaR) portfolio optimization and Entropy Pooling views / stress-testing in Python.

Python - Library for portfolio optimization (MVO) and rigorous risk metrics (VaR/CVaR).

Python - Interactive risk and payout calculator for Futures and CFD traders; features one-time fee firm comparisons.

Python - Framework-agnostic risk-management toolkit for systematic trading — position sizing, drawdown control, a…

R - Analysing equity portfolios.

R - Portfolio design to track an index.

R - Blazingly fast design of risk parity portfolios.

R - Portfolio Analysis, Including Numerical Methods for Optimizationof Portfolios.

R - Econometric tools for performance and risk analysis.

Julia - A Julia quantitative portfolio analytics (risk / performance) via online algorithms.

Julia - Quantitative risk and performance analysis package for financial time series powered by the Julia language.

JavaScript - PortfolioAllocation is a JavaScript library designed to help constructing financial portfolios made of…

JavaScript - Wealth management software to keep track of financial assets like stocks, ETFs or cryptocurrencies and…

JavaScript - Interactive portfolio rebalancing tool that imports brokerage CSV data, sets target allocations, and…

Python SEC EDGAR - Open-source algorithm that scores two US-listed companies against each other on 8 fundamentals…

Python - Fail-closed quality gate for backtests and factor evidence: DSR/PBO/haircut/MinTRL plus a…

Python - Verifiable look-ahead freedom for the value-independent fragment of data pipelines, with a heuristic…

Python - AI skills for quantitative factor research: discover, evaluate, mine, backtest, and monitor factors through…

Python - Performance analysis of predictive alpha factors.

Python - Performance analysis of predictive (alpha) stock factors.

Python Rust - Engine-agnostic quantitative research validation for detecting leakage, overfitting, fragile results,…

Python - GPU-accelerated Factors analysis library and Backtester.

Python - PyTorch research stack for multi-factor analysis, bias correction, portfolio optimization, and reproducible…

Python - Agent-driven A-share factor research engine with 8 MCP tools covering hypothesis design, backtesting,…

Python - Open-source investment analytics platform bridging academic research and retail finance.

Python - Backtest-overfitting audit for factor research: CSCV probability of backtest overfitting, deflated Sharpe…

Python - Screens cross-sectional signals for incomplete-cross-section leakage from staggered data arrival and grades…

R - Covariance matrix estimation via factor models.

R - The FactorAnalytics package contains fitting and analysis methods for the three main types of factor models used…

R - Solutions for enhancing portfolio diversification and replications of seminal papers with R, most of which are…

Python - Sentiment analysis and report generation package for financial assets and securities utilizing GPT models.

Python - REST API analyzing Reddit and X/Twitter for stock mentions and sentiment, providing buzz scores, trending…

Python - LLM-powered A-share stock analysis via P2P agent collaboration. Technical analysis (MA60, volume-price…

TypeScript - Free AI-powered stock research reports for US, China & HK using Claude Opus and multi-model AI with 20+…

Python - Pre-analyzed financial news via REST API and MCP for AI agents: per-ticker impact and sentiment, a category,…

Python - ARCH models in Python.

Python - Python module that allows users to explore data, estimate statistical models, and perform statistical tests.…

Python - Python library for timeseries modelling and inference (frequentist and Bayesian) on models.

Python - Automatic extraction of relevant features from time series.

Python - Tool for producing high quality forecasts for time series data that has multiple seasonality with linear or…

Python - A python library for time-series smoothing and outlier detection in a vectorized way.

Python - A statistical library designed to fill the void in Python's time series analysis capabilities, including the…

Python - vProbabilistic time series modeling in Python.

Python - Automatic discovery of non-trivial statistical relationships across 500+ time series from FRED, World Bank,…

Python - Time-series machine learning at scale. Built with Polars for embarrassingly parallel feature extraction and…

Python C++ - High-performance ETF pattern matching via DTW with cosine pre-filtering. 43× DTW and 58× pattern-match…

Python - Distributional forecasting of crypto log-returns by tangent-space geodesic extrapolation on the 2-Wasserstein…

R - Time Series Analysis and Computational Finance.

R - Rmetrics - Autoregressive Conditional Heteroskedastic Modelling.

R - Rmetrics - Financial Time Series Objects.

R - Univariate GARCH Models.

R - Multivariate GARCH Models.

R - Run predictions inside the database. GitHub

R - Bringing financial analysis to the tidyverse.

R - A toolkit for working with time series in R.

R - Built on top of the tidyverse, tibbletime is an extension that allows for the creation of time aware tibbles…

R - Time series data mining library built on top of the novel Matrix Profile data structure and algorithms.

R - A parsnip backend for GARCH models.

Julia - Time series toolkit for Julia.

Julia - A Julia library that defines TimeFrame (essentially for resampling TimeSeries).

C++ - Deterministic offline PineScript v6 → C++ backtest runtime, validated trade-for-trade against TradingView…

Python Data - Dated SCHD payment and holdings snapshots with source URLs, data dictionaries, and Python tools for…

Python JavaScript - Source-linked money-market, capital-market, and liquidity briefs with local snapshot comparisons…

TypeScript REST MCP - Collectors and public API for Uruguayan retail buy/sell exchange rates and historical series by…

Python - A-share daily-bar data immunity: cleaning, board-aware price limits (ST date-aware), suspensions, audits,…

Python - Point-in-time fixed-basis back-adjustment for A-share daily prices: corporate-action factor chains,…

Python - Collects and stores funding-rate snapshots from five decentralized perpetual-futures exchanges, normalizing…

Jupyter Notebook - statistical analysis of Binance BTC/USDT orderbook: OBI, CVD, spread.

Python - NASDAQ TotalView-ITCH 5.0 day files to Parquet: BBO, trades, order-by-order messages with the resting side…

Python - Open-source financial data platform with extensible provider integrations, a Python interface, a command-line…

Python - Advance Data Based A.I Terminal for all Types of Financial Asset Research.

Python - Yahoo! Finance market data downloader (+faster Pandas Datareader).

TypeScript - Zero-dependency client for the US TreasuryDirect API: auction results, upcoming auctions, CUSIP lookups,…

TypeScript - Typed client for the US Treasury FiscalData API (debt, average interest rates, exchange rates) with…

TypeScript - Client for the NY Fed Markets Data API: SOFR/EFFR/OBFR reference rates, SOFR averages and index, and SOMA…

TypeScript - Client for the CFTC Commitments of Traders reports (Legacy, Disaggregated, TFF; futures-only and…

Python - Daily gold buying-conditions score (0-100), free JSON API and CC BY dataset back to 1971.

Go TypeScript - Open benchmark harnesses for blockchain RPC latency, perpetual-market execution costs and funding,…

Python - An open-source alternative to Yahoo Finance's market data APIs with higher reliability.

Python - MCP server (Model Context Protocol) exposing 17 tools for AI agents to perform quantitative analysis:…

Python - Unified package for collecting OHLC prices from Binance, Bybit, Coinbase, OKX, Kraken, KuCoin, and Bitget…

Python - Live stock/ETF/crypto data with AI-generated bull/bear cases and price forecasts, proprietary ML options…

Python - Python library to download market data via Bloomberg, Quandl, Yahoo etc.

Python - Python module to get real-time stock data from Google Finance API.

Python - Order-flow analytics with order-book imbalance and rolling trade-delta calculations, plus an MCP interface.

TypeScript - CLI + MCP server for SEC 13F institutional holdings, Form 4 insider trading, and smart money convergence…

Python - Python module to get stock data from Yahoo! Finance.

Python - Python module to get data from various sources (Google Finance, Yahoo Finance, FRED, OECD, Fama/French, World…

Python - High level API for access to and analysis of financial data.

Python - Finance API for Python.

Python - yql-finance is simple and fast. API returns stock closing prices for current period of time and current stock…

Python - Download historical and live stock data from NSE (National Stock Exchange of India), BSE, and RBI.

Python - Python library for extracting real-time data from National Stock Exchange (India).

Python - Real time stock and option data.

Python - General Purpose Stock Extractors from Online Resources.

Python - Python wrapper for Yahoo! Finance API.

Python - Free DEX aggregator API returning executable swap calldata across 46 EVM chains. No API key required.

Python - Obtains stock symbols and relating information for SP500, AMEX, NYSE, and NASDAQ.

Python - Python Client for FRED® API.

Python - Yahoo! YQL library.

Python - Python API to get Chinese stock price. (Last updated: 2015-03-21).

Python - Get current exchange rate.

Python - Historical chart pattern similarity search API. 24M+ pre-computed embeddings across 15K+ symbols and 10 years…

Python - Simple command line tool to get stock ticker data.

Python - Python interface to Bloomberg COM APIs.

Python - Python module for currencies.

Python - A utility for crawling historical and Real-time Quotes data of China stocks. (Last updated: 2024-08-27).

Python - Client for Taiwan market data with local disclosure-date filtering, replay diagnostics and missing-session…

Python - Free API and MCP server for Japanese company financials. Normalizes EDINET XBRL across JP-GAAP, IFRS, and…

TypeScript - Standardized SEC EDGAR financials (income statement, balance sheet, cash flow, 40+ ratios) for ~19,000 US…

Python - Parse Japanese XBRL financial statements from EDINET with 161 normalized labels, 26 financial metrics, and…

Python - Access Japanese government statistics (e-Stat) covering population, GDP, CPI, labor, and trade data with MCP…

Python - Access Japanese timely disclosures (TDNet) via MCP. Retrieve earnings, dividends, forecasts, buybacks, and…

Python - Open dataset of U.S. public-company equity stakes in Anthropic and OpenAI from primary 10-K / 10-Q / 8-K…

Python - Utility for retrieving basic China stock data from different sources.

Python - Python SDK for cryptocurrency portfolio tracking with real-time prices, P/L calculations, and price alerts.…

Python - Bronto API Integration for Python.

Python - A simple interface to integrate pandas and the Bloomberg Open API.

Python - Bloomberg Desktop API data (prices, implied volatilities, fundamentals) as pandas DataFrames via blpapi.

Python - Python interface for daily composite prices/OHLC/Volume + Real-time News Feeds, powered by the Tiingo Data…

Python - API Connector to MetaTrader 5 Terminal. (Last updated: 2026-02-20).

Python - AkShare is an elegant and simple financial data interface library for Python, built for human beings!…

Python - Python interface for retrieving data through unofficial Yahoo Finance API.

Python - Financial Data Extraction from Investing.com with Python! https://investpy.readthedocs.io/.

Python - Live stream of market data from Yahoo Finance websocket.

Python - Easy to use Bloomberg Desktop API wrapper for Python.

Python - A python wrapper for Alpha Vantage API for financial data.

Python - Commodity-price API client with local moving averages, RSI, MACD, Bollinger Bands and ATR calculations on…

Python - Open Source Financial data reader for U.S, Korean, Japanese, Chinese, Vietnamese Stocks.

Python - Python client for Federal Reserve Bank of St. Louis API - FRED, ALFRED, GeoFRED and FRASER.

Python - Python interface to Brazilian Central Bank web services.

Python - Python package for Swiss financial data (SNB Policy Rate, SARON, CHF FX rates, CPI, SMI equities,…

Python - Create meaningful OHLCV datasets from knowledge of exchange-calendars (works out-the-box with data from Yahoo…

Python - Python interface for Tardis.dev high frequency crypto market data.

Python - Python interface for Crypto Lake high frequency crypto market data.

Python - simple, hassle-free access to price information of financial assets (currently based on yfinance and…

Python - Python package that implements SDMX 2.1 (ISO 17369:2013), a format for exchange of statistical data and…

Python - Python package that include few composite indicators, which summarize multidimensional relationships between…

Python - finagg is a Python package that provides implementations of popular and free financial APIs, tools for…

Python - This is a database of 300.000+ symbols containing Equities, ETFs, Funds, Indices, Currencies,…

Python - Toolkit with 200+ financial metrics including 80+ financial ratios, 30+ technical indicators, 20+ risk and…

Python - download price data for decentralised exchanges and lending protocols (DeFi).

Python - A package to work with SEC data. Incorporates datamule endpoints.

Python - Python library for high-fidelity unlimited synthetic financial data generation using Heston Stochastic…

Python - FRED & GeoFRED Economic data API with preprocessed dataframe output in pandas/geopandas, polars/polars_st,…

Python - EDGAR Financial data API with preprocessed dataclass outputs.

Python - AI-native SEC EDGAR library with XBRL financials, clean text extraction, 17+ typed forms, and pandas…

Python - Extract geographic revenue breakdowns from SEC EDGAR 10-K filings with no API key. GitHub

Python MCP - MCP server and Python SDK for a SEC EDGAR REST API covering XBRL fundamentals, Form 4 insider trades, 8-K…

Python - Deterministic SEC filing analytics for 10-K/10-Q: section extraction, tone and boilerplate metrics,…

Python - Checks that catch nine silent failure modes in SEC filing data, from Form 4 filings that are about a…

Python - FilingFirehose’s standalone SEC 8-K HTML parser using regex rules to flag possible discrepancies between…

Python - UK SIC 2007 industry classification code lookup, search, and validation. 731 codes, 21 sections.

Python - Validate, format, and identify UK Companies House company numbers. Supports all 27 prefixes.

Python - Financial intelligence API with verified market data, trading signals, sentiment analysis, and fact-checking…

R - Provides native R access to Interactive Brokers Trader Workstation API.

R - An R Interface to 'Bloomberg' is provided via the 'Blp API'.

R - Downloads and aggregates data for Brazilian government issued bonds directly from the website of Tesouro Direto.

R - Interfaces the 'twelvedata' API for stocks and (digital and standard) currencies.

R - R interface to Brazilian Central Bank web services.

R - A bunch of downloaders and parsers for data delivered from B3.

R - Makes 'SimFin' data (https://www.simfin.com/) easily accessible in R.

R - Tidy Finance helper functions to download financial data and process the raw data into a structured Format (tidy…

Julia - Currency conversion library for Julia.

Julia - A Julia library for cryptocurrency exchange APIs.

Julia - Time series market data.

Julia - High-performance Julia package for real-time resampling of financial market data.

JavaScript - Javascript SDK for Trading/Data API and Websockets for FTX, FTXUS, OKX, Bybit, & More.

Rust - Real-time market data streaming in Rust: lock-free SPSC ring buffer, 100K+ ticks/second ingestion,…

Rust - A rust library for financial data analysis.

Python - API server for crypto and market data with technical indicators, on-chain analytics, and MCP access; includes…

JavaScript MCP - Self-hostable data and analytics service with equity technical indicators, multi-chain portfolio…

Python JavaScript - The CCXT for prediction markets. A unified API for trading on Polymarket, Kalshi, and more.

Python - Real-time whale trade tracker for Polymarket — terminal alerts + Telegram notifications when large orders hit…

Python - Real-time Polymarket trading alerts with multi-AI analysis (Groq, Claude, Gemini). Track whale bets, volume…

Python - Open-source market-making strategy that placed #2 in Paradigm's prediction market challenge, with full…

Python - Autonomous trading agent for Kalshi, Polymarket, and Solana — Wang Transform pricing (calibrated on 291k…

Python MCP - Tick-level Polymarket order book history with replay and a backtesting engine simulating queue priority,…

Python - Open-sourced research lab of 11 candidate Polymarket trading bots (weather, sports, longshot fades, maker,…

REST WebSocket MCP - Real-time tennis scores, serving and break-point state, and model win probabilities for pricing…

Python Polymarket - Market-making and arbitrage bot for Polymarket sports and esports markets, pricing from de-vigged…

Python - Open-source public record of stock predictions: commit-reveal before the open, automatic settlement against…

Python JavaScript - Tick-level history for Polymarket and Predict.fun crypto Up/Down markets, including the…

Python - Stock Exchange Trading Calendars.

Python - Business days calculations and utilities.

Python - Exchange calendars to use with pandas for trading applications.

R - Chronological and Calendar Objects.

R - Business days calculations and utilities.

TypeScript - US bond-market (SIFMA) holidays, early closes, and T+1 settlement-date math; zero dependencies.

TypeScript - NYSE/NASDAQ trading calendar: holidays, 1pm early closes, trading-day navigation, and DST-aware…

TypeScript - FX spot/forward value-date calculation across two currency holiday calendars, with the USD-lag and…

Python - Visualizer for pandas dataframes and xarray datasets.

Python - matplotlib utilities for the visualization, and visual analysis, of financial data.

Python - Performant and effortless finance plotting for Python.

Python - Finviz analysis python library.

Python - Analysis and interactive charting using market-prices and bqplot.

Julia - Julia wrapper for Lightweight Charts™ by TradingView.

JavaScript - Flexible financial charting library based on HTML5 canvas.

JavaScript - High-performance, native Canvas/WebGL financial charting library for self-hosted applications without…

Desktop - Technical-analysis charting app for Interactive Brokers (IBKR) that exports drawings, notes, indicators and…

TypeScript - Formula WorkPaper and XLSX recalculation runtime for Node.js services and agent tools.

Python - Make Excel fly with Python. GitHub

Python - Read/Write Excel 2007 xlsx/xlsm files.

Python - Library for developers to extract data from Microsoft Excel spreadsheet files.

Python - Write files in the Excel 2007+ XLSX file format. GitHub

Python - XLLoop is an open source framework for implementing Excel user-defined functions (UDFs) on a centralised…

Python - The ExPy add-in allows easy use of Python directly from within an Microsoft Excel spreadsheet, both to…

Python - PyXLL is an Excel add-in that enables you to extend Excel using nothing but Python code.

Python LLM - Multi-agent financial research framework combining fundamental, technical, news, and sentiment analysis…

Python A-shares - Self-hosted 15-agent research desk (debate graph, optional Tushare L2 and Qlib). Does not place…

Python React A-shares - Local-first quantitative research and backtesting platform with data synchronization,…

TypeScript DeepSeek Harness - Agent-native quantitative research toolkit for DeepSeek Harness: 46 tools across data,…

Python - A dockerized Jupyter quant research environment with preloaded tools for quant analysis, statsmodels, pymc,…

Rust - Runtime for MATLAB-syntax array math with automatic CPU/GPU execution and fused kernels for quantitative…

Fast risks with QuantLib in C++.

Automatic Differentation (AAD) Library.

The QuantLib project is aimed at providing a comprehensive software framework for quantitative finance.; QuantLibRisks…

Java - JQuantLib is a free, open-source, comprehensive framework for quantitative finance, written in 100% Java.

R - RQuantLib connects GNU R with QuantLib.

Excel support.

Excel support.

.Net port.

Python - QuantLib's Python port.

Julia - Quantlib implementation in pure Julia.

Documentation for the Python bindings for the QuantLib library.

perform technical analysis of financial market data. GitHub

Python - Python wrapper for TA-Lib (https://ta-lib.org/).

Official TA-Lib Core

C++ Python - Open-source framework for crypto quant trading, funding rate arbitrage and ultra-low-latency market…

TypeScript JavaScript Pine Script - Open-source transpiler and runtime that executes Pine Script logic in Node.js and…

Papers Derivatives - Collection of 1990s research papers on derivatives pricing, volatility modeling, hedging, and…

Training Interviews - Free timed drill of first round quant interview questions on options and the Greeks, two sided…

Training Interviews - Quant interview prep with 391 free problems with full worked solutions, per-firm…

Free course on volume analysis and the Wyckoff method: market phases, spring/upthrust, order flow reading.

C++20 implementation of special-relativistic geometry applied to OHLCV data: Lorentz factors, spacetime intervals,…

Background and resources on Automatic Differentiation (AD) / Adjoint Algorithmic Differentitation (AAD).

Notebooks that replicate original quantitative finance papers from Emanuel Derman.

A complete set of volatility estimators based on Euan Sinclair's Volatility Trading.

Quantitative Finance and Algorithmic Trading exhaust; mostly ipython notebooks based on Quantopian, Zipline, or Pandas.

Python - Computational tools for financial economics include: Gaussian Mixture model of leptokurtotic risk, adaptive…

Lecture series on economics, finance, econometrics and data science; QuantEcon.py, QuantEcon.jl, notebooks.

Resources for Quantitative Finance.

An library to price financial options written in Python. Includes: Black Scholes, Black 76, Implied Volatility,…

J.P. Morgan's Python training for business analysts and traders.

Different Types of Stock Analysis in Excel, Matlab, Power BI, Python, R, and Tableau.

Python - Free pandas and scikit-learn resources for trading simulation, backtesting, and machine learning on financial…

Repository containing notebooks of cerlymarco's posts on Medium.

Training materials in quantitative finance.

Tutorials about Quantitative Finance in Python and QuantLib: Pricing, xVAs, Hedging, Portfolio Optimisation, Machine…

Materials for the course of Computational Finance.

Implementation of code snippets, exercises and application to live data from Machine Learning for Asset Managers…

Python for Finance Cookbook, published by Packt.

"Modelos de Volatilidade para Derivativos" book's Jupyter notebooks.

Functions, examples and data from the first and the second edition of "Numerical Methods and Optimization in Finance"…

Jupyter Notebooks and code for Python for Finance (2nd ed., O'Reilly) by Yves Hilpisch.

Jupyter Notebooks and code for the book Artificial Intelligence in Finance (O'Reilly) by Yves Hilpisch.

Jupyter Notebooks and code for the book Python for Algorithmic Trading (O'Reilly) by Yves Hilpisch.

Jupyter Notebooks and code for Derivatives Analytics with Python (Wiley Finance) by Yves Hilpisch.

DX Analytics | Financial and Derivatives Analytics with Python.

Quantitative Finance book.

A Python implementation of the rough Bergomi model.

A python implementation of the fast-reversion Heston model of Mechkov for FX purposes.

A collection of data analysis studies that examine the performance and characteristics of value investing over long…

Machine Learning in Asset Management (by @firmai).

Deep Learning and Machine Learning stocks represent a promising long-term or short-term opportunity for investors and…

Feature Engineering and Feature Importance of Machine Learning in Financial Market.

Implement, demonstrate, reproduce and extend the results of the Risk articles 'Differential Machine Learning' (2020)…

Python - Code examples for Robert Carver's Systematic Trading.

Examples using pysystemtrade for Robert Carver's blog.

Machine Learning in Finance: From Theory to Practice Book.

Solo crypto quant starter kit: 12 playbooks covering trading strategy, risk rails, 3-tier wallet architecture, MEV…

Hands-On Machine Learning for Algorithmic Trading, published by Packt.

Codes from @financialnoob's posts.

Free and public Options Trading strategy library for MesoSim.

Repo for code examples in Quantitative Finance with Python by Chris Kelliher.

This repository contains codes that were executed during my training in the CQF (Certificate in Quantitative Finance).…

Code repository for Pricing and Trading Interest Rate Derivatives.

Reimplementation of Autoencoder Asset Pricing Models (GKX, 2019).

150+ quantitative finance Python programs to help you gather, manipulate, and analyze stock market data.

Implementation of 101 formulaic alphas using qstrader.

An opinionated approach to empirical research in financial economics - a fully transparent, open-source code base in…

2024 QuantMind's Rough Volatility Workshop lectures.

All the answers for exercises from Advances in Financial Machine Learning by Dr Marco Lopez de Parodo.

A catalog of algorithmic trading libraries, frameworks, strategies, and educational materials.

Prof. Daniel Palomar's Portfolio Optimization Book. GitHub

Python R - Demo code for direct Black-Scholes implied-volatility calculation from normalized call prices via the…

Python - Code snippets for Metatrader (MT5) forex/CFD trading and data retrieval via trademux API client.

Data - Free Korean equity settled closes with 250 trading days of per-stock history, DART filings and earnings as…

Data - Free Korean investor-flow and sector-index datasets in English CSV/JSON, updated each trading day under CC BY…

Python - Cryptocurrency market data API with 20,000 free calls per month for personal use, including one year of daily…

Free crypto-exchange API latency benchmarks with p50/p95/p99 measurements, separate TLS timing and downloadable CC BY…

Python - DEX pool, token and OHLCV data API with 50,000 free monthly credits without signup and up to 60-second data…

Python - Point-in-time US equity fundamentals from SEC EDGAR with filing dates and restatement flags; free API access…

Financial market data API with a permanent free personal-use tier offering two years of US stock history, end-of-day…

REST CLI MCP - Hosted Kalshi and Polymarket data and analysis service with a free tier of 1,000 requests/month and 60…

MCP REST - Search, social, commerce, and news-sentiment data for alternative-data research, with a permanent free tier…

Financial data API for quantitative research, with a permanent free tier of 1,000 monthly API calls and one year of…

Free web app for position sizing, stop-loss and max-drawdown on funded accounts, with real tick/pip values for…

Free web app for crypto liquidation price, position sizing, PnL and funding-rate calculations across major exchanges,…

Python - Proprietary local backtesting and optimization CLI with a permanent free plan requiring no registration,…

Forex trading and market-data gateway for MetaTrader 4/5 and OANDA, with a free plan for one account, 500 OHLC…

Live autonomous benchmark that evaluates LLM trading performance on DAX and Nasdaq indices using identical strategies…

Python - Agent-verification platform with EdgeProof backtest diagnostics using Deflated Sharpe, permutation tests, and…

No-code cryptocurrency strategy builder with technical indicators and unlimited free historical backtests, without a…

Python - Financial-text classification API for sentiment, directionality, quality, post type, relevance, confidence,…

SEC financial-statement analysis and API with a permanent free account covering five selected stocks and five years of…

Brazilian stock and FII data API with fundamentals, prices, dividends, financial statements, and macroeconomic data,…

Brazilian market data API with a free tier of 15,000 requests per month and up to three months of price history, plus…

Brazilian stock and FII analysis with free essential fundamentals, one year of price history, Bazin and Graham…

Institutional holdings research with a free tier offering one year of holdings history and five AI questions per day,…

Public SEC ownership research web app for exploring 13F portfolios, insider activity, Schedule 13D/G filings, company…

SEC filings, insider transactions, and institutional holdings API with a permanent free tier of 5,000 requests per…

REST - SEC filing events as typed JSON: 8-K item codes with materiality flags, SC 13D/13G activist stakes (holder,…

REST MCP - Real-time SEC EDGAR filings normalized to one JSON schema: Form 4 insider trades, 8-K corporate events, and…

Financial data API with a free personal-use plan allowing 300 requests per day for symbol lists and selected market…

Free SEC 13F research web app covering 11,700+ institutional managers and 208,000+ filings from 2019 onward.…

Hosted API gateway providing cryptocurrency price data, with a permanent free allowance of 50 requests per day without…

Saxo Bank financial data API.

Financial press-release platform covering Business Wire, PR Newswire, GlobeNewswire, and AccessWire, with a permanent…

Financial data API with support for R, Python, Excel, Ruby, and many other languages (formerly Quandl).

Portfolio analysis and optimization API with anonymous free access to selected endpoints for up to 20 assets, subject…

Free WallstreetBets ticker mentions and sentiment API with historical date queries and a limit of 20 requests per…

Prediction-market data service with free market metadata and tag datasets without an account, while tick-level data…

Python - Currency exchange rates, conversion and VAT data with a permanent free tier of 200 requests per day and no…

Python - Market data over REST and WebSocket with a permanent free non-commercial tier per market: 10,000 monthly REST…

Python - Hyperliquid order-flow-enriched minute OHLCV with a permanent free tier covering BTC, ETH, SOL and HYPE over…

Technical, quantitative and sentiment data for stocks and ETFs with risk metrics, peer percentiles and market regime…

Trade-review workspace with a permanent free tier for 25 trades per month, CSV imports and P&L, win-rate and…

Institutional-grade financial intelligence platform. Track 43K+ congressional trades (STOCK Act), SEC insider Form 4…

Investment decision frameworks with a permanently free library of investor principles and scenarios covering…

Stock-research and portfolio-review API with 250 free calls per month without payment information. GitHub

Top Quant resources like ArXiv (sanity), SSRN, RePec, Journals, Podcasts, Videos, and Blogs.

Market-data service with a free REST tier of 5,000 requests per month for six symbols and M1, M5, and H1 timeframes,…

Cryptocurrency research terminal with free access without signup and a personal API tier allowing 10,000 requests per…

Aggregates public financial data from HKEX, the SFC, the Hong Law Society, UK Companies House and other sources, has…

Alternative-data research on private companies using GitHub commit velocity and contributor growth, with a permanently…

REST API for US equities & options: reference & fundamental data, multi-year financial statements, corporate events,…

TypeScript - Browser-based, keyboard-first financial terminal. No public GitHub repo (closed source).

Real-time RSI signals, price action, and volume spikes dashboard across multiple exchanges. Free, no sign-up required.

Trading strategy builder that turns plain-English market ideas into inspectable rules, backtests them against…

AI forecasting-accountability lab: every forecast is locked pre-event, Bitcoin-timestamped (OpenTimestamps), and…

REST - Trading-signal validation service with a free browser-based Deflated Sharpe Ratio calculator requiring no…

Daily trend, momentum, correlation and risk analytics with a permanently free stock and ETF terminal, while API…

Data - Market statistics and options-positioning analytics with free public max-pain and GEX pages and 10 API calls…

Data MCP - SPX dealer-positioning analytics with a permanently free historical session archive without an account,…

DeFi vault scores across 16 factors, with a free read-only API requiring no signup and limited to 60 requests per…

Free Japan stock screener built on EDINET filings. 160+ fundamentals, custom formula metrics,…

Free congressional trade disclosures, politician profiles and performance statistics, with paid API access beyond…

REST MCP - DeFi liquidity-pool scores and outcome-labeled signals through a free keyless API limited to 60 requests…

REST MCP - Hourly crypto news sentiment and typed market events (hack, regulation, listing, delisting, legal) for 30…

Hyperliquid and Lighter market data through REST, WebSocket and replay, with a permanent free tier offering 50,000…

Python REST - Forex news sentiment with a permanent free API allowing 25 requests per day, one three-hour cycle of…

Hosted MT4 and MT5 broker API with historical candles, real-time tick streaming, and a permanent free tier for five…

Derived, indicative multi-asset market data through REST, WebSocket, and MCP, with a permanent free tier of 3,000 REST…

Monthly statistics relating proprietary SEC-filing importance scores to next-session excess stock moves, with…

AI Vibe-Trading - Natural-language trading-strategy builder with backtesting and forward testing; a permanent free…

Stock research terminal with free access to facts, standard ratios, universe-wide screening, 13F top holdings, three…

Web JSON - Free live open/closed clock and reference for 69 futures products across 14 exchanges with DST-aware…

Cross-chain swap and bridge route comparison that queries exchange providers for a given pair and amount and ranks the…

Cryptocurrency market alerts, screeners, and funding-rate, liquidation, and chart-pattern boards, with a permanent…

Python TypeScript - Financial and geopolitical news API with a permanent free REST tier of 5,000 requests per month, a…

REST/MCP - Brazilian company and real-estate fund fundamentals with public calculation methodology and a permanent…

JavaScript - Bitcoin and macroeconomic market briefings through REST and MCP, with a permanent free tier of six…

Python TypeScript R - Factor data and cosine-similarity screening with a permanent free API tier of 250 calls per day,…

TypeScript - Bitcoin cycle scores and market-state indicators through four free public API endpoints requiring no…

Python - Public earnings-call transcripts and an earnings calendar readable without an account, with paid API access…

Python - Macroeconomic release data with permanent free access to USD announcements covering the latest 90 days at 100…

Python - Free market and economic data with up to 10 databank downloads per hour of one million rows each, subject to…

Python Historical - Archived big-data quantitative-analysis and trading system retained as an early unified…

Python Historical - Deprecated Zipline Pipeline extension retained as an early reference for pipeline-based live…

Python Historical - Unmaintained vectorized pandas backtesting framework retained as an early research-oriented design.

Python Historical - Archived Excel writer retained for studying legacy BIFF/XLS workbook encoding used in…

Python Historical - Archived protocol implementation retained for studying TongDaXin binary market-data protocols and…

Python Historical - Archived research implementation of technical-indicator selection using distance correlation,…

Python Historical - Archived reference implementation of a financial time-series expression language with NumPy and R…

R Historical - Archived reference implementation for parsing and aggregating local Bovespa tick and order files after…

R Historical - Archived toolkit retained as an early reference for cryptocurrency wallet valuation, cross-currency…

Python Historical - Archived trading framework retained as a reference for virtual-broker order simulation and…

Go Historical - Archived Stellar DEX trading bot retained for studying configurable market-making and order-book…

Python Historical - Archived crypto-asset trading engine preserving an early adaptation of Zipline for exchange…

Python Historical - Archived event-driven trading library retained for studying its original backtesting broker and…

Python Historical - Archived trading framework retained for studying shared market-data capture and multiple-strategy…