finance APIs

Marketstack is a real-time, intraday, and historical stock market data API covering 70 plus global exchanges.

Aletheia provides financial data including insider trading filings, earnings call transcripts, and financial statements for US-listed companies.

Alpaca provides real-time and historical market data for US equities and ETFs, along with commission-free trading capabilities.

Alpha Vantage delivers free real-time and historical stock, forex, and cryptocurrency data through a simple REST API.

Banco do Brasil provides a suite of financial APIs covering transactions, payments, PIX transfers, and account data for Brazil's largest public bank.

Bank Data API lets you instantly validate IBAN and SWIFT/BIC numbers to make sure bank account details are correct before processing a payment.

Billplz is a payment platform API focused on the Malaysian market that lets you create bills and collect payments online.

Binlist gives you free access to a database of Bank Identification Numbers (BINs), the first 6-8 digits of any credit or debit card number that identify the issuing bank and card type.

Boleto.Cloud is a Brazilian payment API that lets you generate boletos — the popular Brazilian bank slip payment method used widely for bills and online purchases.

Citi's partner API provides access to Citigroup banking account and statement data, enabling developers to build financial apps that read account balances, transactions, and statements on behalf of authorized users.

Econdb provides free access to global macroeconomic data including GDP, inflation, unemployment, and hundreds of other economic indicators from official sources like central banks and statistical agencies.

The U.S.

Finage is a financial data provider offering real-time and historical data for stocks, forex currencies, cryptocurrencies, indices, and ETFs through a single API.

Financial Modeling Prep (FMP) provides a comprehensive API for real-time and historical stock market data, including income statements, balance sheets, stock prices, earnings, and more for thousands of companies.

Finnhub is a popular financial API offering real-time stock quotes, company fundamentals, news, forex rates, and cryptocurrency data through both REST and WebSocket connections.

FRED provides programmatic access to economic data from the federal reserve bank of st.

Front Accounting APIs provide programmatic access to an open-source accounting system designed for small businesses.

Hotstoks provides programmatic access to stock market data powered by sql via REST API.

IEX Cloud provides programmatic access to realtime & historical stock and market data via REST API.

IG is a financial data API providing access to spreadbetting and CFD (Contract for Difference) market data.

The Indian Mutual Fund API gives you free access to the complete history of all mutual funds registered in India.

Intrinio is a financial data platform that provides a wide range of data feeds including stock prices, fundamentals, options, and economic indicators.

Klarna provides programmatic access to klarna payment and shopping service via REST API.

MercadoPago is a leading payment platform in Latin America, and its API lets you integrate payment processing, refunds, and subscription billing into your app.

Mono is an African open banking API that lets you connect to users bank accounts to access transaction history, balances, and identity data.

Moov is a modern payments infrastructure API that makes it straightforward for platforms to send, receive, and store money.

Nordigen provides programmatic access to connect to bank accounts using official bank apis and get raw transaction data via REST API.

OpenFIGI is a free API from Bloomberg that lets you look up financial instrument identifiers (FIGIs) for equities, indices, futures, and options.

Plaid is a widely-used financial data API that lets your application securely connect to users bank accounts to access transactions, balances, and identity data.

Polygon.io is a comprehensive market data API providing real-time and historical stock, forex, and cryptocurrency data.

Portfolio Optimizer is a free REST API that helps you analyze and optimize investment portfolios using advanced mathematical models.

Razorpay IFSC API lets you look up Indian bank branch details using an 11-character IFSC code — completely free and without authentication.

Real Time Finance is a WebSocket API that streams live stock prices, trade data, and market events directly to your application with minimal latency.

SEC EDGAR Data API provides free access to financial filings, annual reports (10-K), quarterly reports (10-Q), and ownership data for all publicly traded US companies.

SmartAPI by Angel Broking is an Indian stock brokerage API that lets developers build automated trading systems, portfolio trackers, and order management tools for the NSE and BSE markets.

StockData.org provides real-time, intraday, and historical stock market data along with financial news and sentiment analysis through a simple REST API.

Styvio provides real-time and historical stock price data combined with sentiment analysis based on social media and news signals.

Tax Data API by APILayer lets you instantly validate VAT numbers and retrieve tax rate information for countries around the world.

Tradier is a US brokerage API that provides access to equity and options market data including delayed quotes, intraday prices, and historical data going back years.

Twelve Data provides real-time and historical stock, forex, cryptocurrency, and ETF market data through a clean and well-documented REST API.

The VAT Validation API by Abstract API lets you check whether a VAT number is valid and look up current VAT rates for countries in the EU and beyond.

The WallStreetBets API gives you real-time sentiment data extracted from Reddit's r/WallStreetBets community, showing which stocks are being discussed and whether the mood is bullish or bearish.

Yahoo Finance provides unofficial access to stock quotes, historical prices, currency exchange rates, and cryptocurrency data through community-maintained libraries and endpoints.

The YNAB (You Need A Budget) API lets you programmatically read and write data from a user's YNAB budget, including accounts, transactions, and category balances.

The Zoho Books API gives you programmatic access to your Zoho Books accounting data, letting you manage invoices, contacts, expenses, and payments from your own apps.

arXiv provides programmatic access to curated research-sharing platform: physics, mathematics, quantitative finance, and economics via REST API.