Finance APIs
Find free APIs for AI, weather, finance, and development projects in our curated directory.
Explore Finance APIs
Find the perfect free API for your next project. Our curated directory features hundreds of free APIs across AI, weather, finance, and developer tools - all verified to offer genuine free tiers without credit card requirements.
Whether you need AI APIs for natural language processing, Weather APIs for forecasts and historical data, Finance APIs for stock and crypto data, or Developer APIs for GitHub integration and more - we have you covered.
Pro tip: Each API card includes a copy button for the endpoint URL. Click to copy and integrate into your projects quickly.
Showing 1-46 of 46 APIs
Marketstack
Finance
Marketstack is an API listed in the Finance category that provides access to real-Time, Intraday & Historical Market Data API. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Marketstack a useful integration candidate when a project needs real-Time, Intraday & Historical Market Data API through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Aletheia
Finance
Aletheia is an API listed in the Finance category that provides access to insider trading data, earnings call analysis, financial statements, and more. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available; CORS is listed as Yes. This makes Aletheia a useful integration candidate when a project needs insider trading data, earnings call analysis, financial statements, and more through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Alpaca
Finance
Alpaca is an API listed in the Finance category that provides access to realtime and historical market data on all US equities and ETFs. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available; CORS is listed as Yes. This makes Alpaca a useful integration candidate when a project needs realtime and historical market data on all US equities and ETFs through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Alpha Vantage
Finance
Alpha Vantage is an API listed in the Finance category that provides access to realtime and historical stock data. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Alpha Vantage a useful integration candidate when a project needs realtime and historical stock data through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Banco do Brasil
Finance
Banco do Brasil is an API listed in the Finance category that provides access to all Banco do Brasil financial transaction APIs. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies OAuth as the authentication method; HTTPS support is listed as available; CORS is listed as Yes. This makes Banco do Brasil a useful integration candidate when a project needs all Banco do Brasil financial transaction APIs through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Bank Data API
Finance
Bank Data API is an API listed in the Finance category that provides access to instant IBAN and SWIFT number validation across the globe. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Bank Data API a useful integration candidate when a project needs instant IBAN and SWIFT number validation across the globe through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Billplz
Finance
Billplz is an API listed in the Finance category that provides access to payment platform. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Billplz a useful integration candidate when a project needs payment platform through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Binlist
Finance
Binlist is an API listed in the Finance category that provides access to public access to a database of IIN/BIN information. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available. This makes Binlist a useful integration candidate when a project needs public access to a database of IIN/BIN information through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Boleto.Cloud
Finance
Boleto.Cloud is an API listed in the Finance category that provides access to a api to generate boletos in Brazil. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Boleto.Cloud a useful integration candidate when a project needs a api to generate boletos in Brazil through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Citi
Finance
Citi is an API listed in the Finance category that provides access to all Citigroup account and statement data APIs. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Citi a useful integration candidate when a project needs all Citigroup account and statement data APIs through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Econdb
Finance
Econdb is an API listed in the Finance category that provides access to global macroeconomic data. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available; CORS is listed as Yes. This makes Econdb a useful integration candidate when a project needs global macroeconomic data through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Fed Treasury
Finance
Fed Treasury is an API listed in the Finance category that provides access to u.S. Department of the Treasury Data. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available. This makes Fed Treasury a useful integration candidate when a project needs u.S. Department of the Treasury Data through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Finage
Finance
Finage is an API listed in the Finance category that provides access to finage is a stock, currency, cryptocurrency, indices, and ETFs real-time & historical data provider. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Finage a useful integration candidate when a project needs finage is a stock, currency, cryptocurrency, indices, and ETFs real-time & historical data provider through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Financial Modeling Prep
Finance
Financial Modeling Prep is an API listed in the Finance category that provides access to realtime and historical stock data. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Financial Modeling Prep a useful integration candidate when a project needs realtime and historical stock data through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Finnhub
Finance
Finnhub is an API listed in the Finance category that provides access to real-Time RESTful APIs and Websocket for Stocks, Currencies, and Crypto. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Finnhub a useful integration candidate when a project needs real-Time RESTful APIs and Websocket for Stocks, Currencies, and Crypto through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
FRED
Finance
FRED is an API listed in the Finance category that provides access to economic data from the Federal Reserve Bank of St. Louis. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available; CORS is listed as Yes. This makes FRED a useful integration candidate when a project needs economic data from the Federal Reserve Bank of St. Louis through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Front Accounting APIs
Finance
Front Accounting APIs is an API listed in the Finance category that provides access to front accounting is multilingual and multicurrency software for small businesses. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies OAuth as the authentication method; HTTPS support is listed as available; CORS is listed as Yes. This makes Front Accounting APIs a useful integration candidate when a project needs front accounting is multilingual and multicurrency software for small businesses through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Hotstoks
Finance
Hotstoks is an API listed in the Finance category that provides access to stock market data powered by SQL. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available; CORS is listed as Yes. This makes Hotstoks a useful integration candidate when a project needs stock market data powered by SQL through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
IBANforge
Finance
IBANforge is an API listed in the Finance category that provides access to IBAN validation and BIC/SWIFT lookup for 75+ countries with 121K+ bank entries. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available; CORS is listed as Yes. This makes IBANforge a useful integration candidate when a project needs IBAN validation and BIC/SWIFT lookup for 75+ countries with 121K+ bank entries through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
IEX Cloud
Finance
IEX Cloud is an API listed in the Finance category that provides access to realtime & Historical Stock and Market Data. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available; CORS is listed as Yes. This makes IEX Cloud a useful integration candidate when a project needs realtime & Historical Stock and Market Data through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
IG
Finance
IG is an API listed in the Finance category that provides access to spreadbetting and CFD Market Data. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes IG a useful integration candidate when a project needs spreadbetting and CFD Market Data through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Indian Mutual Fund
Finance
Indian Mutual Fund is an API listed in the Finance category that provides access to get complete history of India Mutual Funds Data. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available. This makes Indian Mutual Fund a useful integration candidate when a project needs get complete history of India Mutual Funds Data through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Intrinio
Finance
Intrinio is an API listed in the Finance category that provides access to a wide selection of financial data feeds. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Intrinio a useful integration candidate when a project needs a wide selection of financial data feeds through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Klarna
Finance
Klarna is an API listed in the Finance category that provides access to klarna payment and shopping service. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Klarna a useful integration candidate when a project needs klarna payment and shopping service through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
MercadoPago
Finance
MercadoPago is an API listed in the Finance category that provides access to mercado Pago API reference - all the information you need to develop your integrations. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes MercadoPago a useful integration candidate when a project needs mercado Pago API reference - all the information you need to develop your integrations through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Mono
Finance
Mono is an API listed in the Finance category that provides access to connect with users’ bank accounts and access transaction data in Africa. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Mono a useful integration candidate when a project needs connect with users’ bank accounts and access transaction data in Africa through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Moov
Finance
Moov is an API listed in the Finance category that provides access to the Moov API makes it simple for platforms to send, receive, and store money. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Moov a useful integration candidate when a project needs the Moov API makes it simple for platforms to send, receive, and store money through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Nordigen
Finance
Nordigen is an API listed in the Finance category that provides access to connect to bank accounts using official bank APIs and get raw transaction data. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Nordigen a useful integration candidate when a project needs connect to bank accounts using official bank APIs and get raw transaction data through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
OpenFIGI
Finance
OpenFIGI is an API listed in the Finance category that provides access to equity, index, futures, options symbology from Bloomberg LP. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available; CORS is listed as Yes. This makes OpenFIGI a useful integration candidate when a project needs equity, index, futures, options symbology from Bloomberg LP through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Plaid
Finance
Plaid is an API listed in the Finance category that provides access to connect with user's bank accounts and access transaction data. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as unavailable. This makes Plaid a useful integration candidate when a project needs connect with user's bank accounts and access transaction data through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Polygon
Finance
Polygon is an API listed in the Finance category that provides access to historical stock market data. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Polygon a useful integration candidate when a project needs historical stock market data through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Portfolio Optimizer
Finance
Portfolio Optimizer is an API listed in the Finance category that provides access to portfolio analysis and optimization. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available; CORS is listed as Yes. This makes Portfolio Optimizer a useful integration candidate when a project needs portfolio analysis and optimization through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Razorpay IFSC
Finance
Razorpay IFSC is an API listed in the Finance category that provides access to indian Financial Systems Code (Bank Branch Codes). It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available. This makes Razorpay IFSC a useful integration candidate when a project needs indian Financial Systems Code (Bank Branch Codes) through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Real Time Finance
Finance
Real Time Finance is an API listed in the Finance category that provides access to websocket API to access realtime stock data. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as unavailable. This makes Real Time Finance a useful integration candidate when a project needs websocket API to access realtime stock data through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
SEC EDGAR Data
Finance
SEC EDGAR Data is an API listed in the Finance category that provides access to API to access annual reports of public US companies. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available; CORS is listed as Yes. This makes SEC EDGAR Data a useful integration candidate when a project needs API to access annual reports of public US companies through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
SmartAPI
Finance
SmartAPI is an API listed in the Finance category that provides access to gain access to set of <SmartAPI> and create end-to-end broking services. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes SmartAPI a useful integration candidate when a project needs gain access to set of <SmartAPI> and create end-to-end broking services through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
StockData
Finance
StockData is an API listed in the Finance category that provides access to real-Time, Intraday & Historical Market Data, News and Sentiment API. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available; CORS is listed as Yes. This makes StockData a useful integration candidate when a project needs real-Time, Intraday & Historical Market Data, News and Sentiment API through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Styvio
Finance
Styvio is an API listed in the Finance category that provides access to realtime and historical stock data and current stock sentiment. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Styvio a useful integration candidate when a project needs realtime and historical stock data and current stock sentiment through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Tax Data API
Finance
Tax Data API is an API listed in the Finance category that provides access to instant VAT number and tax validation across the globe. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Tax Data API a useful integration candidate when a project needs instant VAT number and tax validation across the globe through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Tradier
Finance
Tradier is an API listed in the Finance category that provides access to US equity/option market data (delayed, intraday, historical). It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies OAuth as the authentication method; HTTPS support is listed as available; CORS is listed as Yes. This makes Tradier a useful integration candidate when a project needs US equity/option market data (delayed, intraday, historical) through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Twelve Data
Finance
Twelve Data is an API listed in the Finance category that provides access to stock market data (real-time & historical). It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Twelve Data a useful integration candidate when a project needs stock market data (real-time & historical) through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
VAT Validation
Finance
VAT Validation is an API listed in the Finance category that provides access to validate VAT numbers and calculate VAT rates. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available; CORS is listed as Yes. This makes VAT Validation a useful integration candidate when a project needs validate VAT numbers and calculate VAT rates through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
WallstreetBets
Finance
WallstreetBets is an API listed in the Finance category that provides access to wallstreetBets Stock Comments Sentiment Analysis. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available. This makes WallstreetBets a useful integration candidate when a project needs wallstreetBets Stock Comments Sentiment Analysis through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Yahoo Finance
Finance
Yahoo Finance is an API listed in the Finance category that provides access to real time low latency Yahoo Finance API for stock market, crypto currencies, and currency exchange. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available; CORS is listed as Yes. This makes Yahoo Finance a useful integration candidate when a project needs real time low latency Yahoo Finance API for stock market, crypto currencies, and currency exchange through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
YNAB
Finance
YNAB is an API listed in the Finance category that provides access to budgeting & Planning. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies OAuth as the authentication method; HTTPS support is listed as available; CORS is listed as Yes. This makes YNAB a useful integration candidate when a project needs budgeting & Planning through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Zoho Books
Finance
Zoho Books is an API listed in the Finance category that provides access to online accounting software, built for your business. It is intended for developers who want to integrate this type of finance data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies OAuth as the authentication method; HTTPS support is listed as available. This makes Zoho Books a useful integration candidate when a project needs online accounting software, built for your business through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.
Frequently Asked Questions About Free APIs
What are the best free APIs for developers?
The best free APIs include OpenAI API (free tier), GitHub REST API, OpenWeather API, and Alpha Vantage for finance data. Our directory lists hundreds of free APIs across AI, weather, finance, and developer categories.
Do these APIs require a credit card?
Most APIs in our directory offer free tiers that don't require a credit card. Some may require registration for an API key, but you won't be charged for basic usage within their free limits.
How do I integrate these APIs into my project?
Each API listing includes the endpoint URL with a copy button. Click to copy the endpoint, then use it in your HTTP requests. Visit the API's documentation (linked on each page) for authentication details and usage examples.
What's the difference between free and paid API tiers?
Free API tiers typically have rate limits (requests per minute/day) and may offer fewer features. They're perfect for development, testing, and small projects. Paid tiers offer higher limits, more features, and SLAs for production use.
Can I use these APIs for commercial projects?
Most APIs allow commercial use on their free tiers, but check each API's terms of service. Some may require attribution or have specific usage restrictions for commercial applications.