Free Finance & Stock Market APIs

Real-time and historical stock market quotes, forex, and crypto time series

Institutional-grade real-time market data, company fundamentals, and earnings

Global financial market data for equities, forex, indices, and crypto

Global stock quotes, market data, currency rates, and financial news

Real-time and historical financial market data API for US stocks, options, forex, and crypto.

Clean stock, crypto, and forex market data feeds and financial news

Global stock market ticker quotes, historical data, and index tracking

Open-source currency exchange rate API tracking the European Central Bank

Foreign currency exchange rates and reliable conversion endpoints

Reliable foreign exchange rates and currency conversion data

Real-time fiat currency converter supporting 150+ world currencies

Live foreign exchange rates, historic quotes, and currency conversion

Foreign exchange rates and historical currency conversion API

Company financial modeling, SEC filings, and financial ratios

Official European Commission VAT verification service. No registration required, completely free.

Zero-dependency international bank account (IBAN) and SWIFT/BIC validation service using ISO 7064 MOD 97-10.

Real-time currency and cross-rate conversion service based on official European Central Bank reference rates.

Provides a machine-readable dataset of published 409A valuation prices collected from provider sites. Data is available as JSON, CSV and markdown and includes source links, quoted amounts and retrieval dates.

Public dataset that aggregates published conveyancing fee figures across Australian sources and computes medians, ranges and state breakdowns. Data is available as machine-readable JSON, CSV and Markdown.

This API provides up-to-date information on various data points from Argentina, including historical exchange rates, financial indices, and public holidays. It enables users to access data in a RESTful manner, making it a valuable resource for developers and analysts interested in Argentine data.

Public dataset of UK conveyancing fees compiled from law firms' published pages. Provides the median fee and per-source figures with source URLs and read dates, available as JSON and CSV.

ExchangeRate-API provides a free and open-access API for real-time currency conversion and exchange rate data without the need for an API key. It supports various currency pairs and allows users to obtain current and historical exchange rates for personal or commercial use, subject to terms of attribution and rate limits.

FXMacroData delivers real-time and historical macroeconomic releases, FX reference rates, forecasts and market context through a REST API with streaming options. It includes point-in-time histories, COT positioning, commodities and precomputed factors for research and trading workflows.

The FinSignals API provides a RESTful interface for classifying financial social posts, including text from platforms like Reddit. It evaluates a post's sentiment, directionality, content quality, and other relevant signals in a structured JSON response.

Provides access to a wide range of financial data including market data, company fundamentals, and alternative data. Users can make requests to retrieve stock symbols, prices, company information, ESG scores and ratings, mutual fund holdings, and more.

Open, read-only financial research API that returns bank funding, capital markets, liquidity and related dataset views. Public reads with no account or API key required.

The exchangerate.dev API provides indicative foreign exchange rates for over 168 currency pairs, with live intraday updates for 16 currencies. It offers various endpoints for real-time currency conversion, historical rates, and detailed market information, making it ideal for developers needing accurate financial data.

The Forex Trading API allows users to access the foreign exchange market for trading currencies and precious metals. It facilitates trading over 80 currency pairs with comprehensive trading options and insights into market performance.

Provides a machine-readable dataset (JSON/CSV) of the Marine Survey Fee Index: median and per-source published survey fees, with source links and read dates. The dataset is updated on the site and available for embedding or download.

Provides access to current and historical financial data from South African municipalities, enabling users to gather insights about municipal finances. It includes data sets covering various aspects of municipal financial performance and accountability, sourced from the National Treasury.

Public dataset providing the NZ Conveyancing Fee Index as machine-readable JSON and CSV. It reports median, range and per-transaction figures with source links and read dates.

The Open Banking API enables users to connect their bank accounts securely and access transaction data without needing paperwork or PSD2 certificates. It allows for the creation of API keys, exporting of credentials, and seamless integration with SDKs for quick access to banking information.

This free JSON API provides access to US limits, brackets, and wage rates, while including the source and verification details for each figure. It enables users to fetch a comprehensive catalog of data with no rate limits or API keys required.

The Shodan EntityDB API provides fast lookups for business entities, offering a centralized repository of financial overviews and executive information for entities listed in the US. Access critical financial metrics, analyze performance, and explore leadership teams to make informed investment decisions, conduct industry research, and connect with key decision-makers.

Public, machine-readable dataset of UK Capital Gains Tax rates, annual exempt amounts and related allowances by tax year. Data is published as downloadable JSON and CSV with source citations and retrieval dates.

Provides the UK PPC Management Fee Index as machine-readable data, showing median, min/max and per-source published PPC management fees. Data is available as public JSON, CSV and Markdown downloads.

A small, machine-readable dataset that aggregates published umbrella company margins and accountant fee figures in GBP. Provides median, range and individual source rows with retrieval dates.

API for currency conversion and exchange rates. It provides endpoints to convert currencies, list available currencies, and retrieve current exchange rates for various currencies.

Who owns AI and chip stocks, what insiders sell, how fast they grow: answers from SEC filings

Open financial currency exchange API delivering real-time and historical conversion rates for 350+ fiat and crypto currencies with zero API keys required.

Real-time and historical market data for US stocks, forex, crypto and commodities via REST and WebSocket. 25+ years of OHLCV history, watchlists and portfolio analytics.