Free Finance APIs

96 free public Finance APIs for developers. 95 support HTTPS, 51 allow CORS from the browser and 33 need no API key.

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Showing 96 of 96 APIs

Aletheia

Insider trading data, earnings call analysis, financial statements, and more

apiKeyHTTPSCORS

Alpaca

Realtime and historical market data on all US equities and ETFs

apiKeyHTTPSCORS

Alpha Vantage

Realtime and historical stock data

apiKeyHTTPSCORS ?

Arkleon

Point-in-time SEC EDGAR fundamentals over /v1

apiKeyHTTPSCORS ?

Banco do Brasil

All Banco do Brasil financial transaction APIs

OAuthHTTPSCORS

Bank Data

Instant IBAN and SWIFT number validation across the globe

apiKeyHTTPSCORS ?

Banking Access Index

Which US business banking providers accept founders by country of residence, with sources

No authHTTPSCORS

Billplz

Payment platform

apiKeyHTTPSCORS ?

Binlist

Public access to a database of IIN/BIN information

No authHTTPSCORS ?

Boleto.Cloud

A api to generate boletos in Brazil

apiKeyHTTPSCORS ?

Brainy Prices

UAE living costs: KHDA fees, DLD rents, fuel, utilities, telecom and relocation, with dated sources

No authHTTPSCORS

BriefTape

Real-time AI-summarized SEC filings, Fed, FDA and BLS data, ticker-tagged

apiKeyHTTPSCORS

CardBinCheck

Card BIN/IIN lookup: network, issuer, country and card type for the first 6-8 digits

No authHTTPSCORS

Citi

All Citigroup account and statement data APIs

apiKeyHTTPSCORS ?

CongressInvests

Real-time U.S. congressional stock trade disclosures from Senate EFD and House Clerk

apiKeyHTTPSCORS

contix

Spain: IBAN validation with bank and BIC, EU VAT number check (VIES), Modelo 303 VAT sums

No authHTTPSCORS

Degenscan Intel Macro

U.S. Treasury auctions, stablecoin supply, Brazil crypto-dollar premium vs BCB PTAX; free trial key

apiKeyHTTPSNo CORS

Dino.markets

Matched Kalshi and Polymarket prediction-market data, cross-venue spreads

apiKeyHTTPSNo CORS

Drillr

Fundamentals, filings, earnings, ownership and events for US, China and Japan equities

apiKeyHTTPSNo CORS

Econdb

Global macroeconomic data

No authHTTPSCORS

EconPulse

Live economic data — CPI, PPI, energy, treasury rates, BTC premium

apiKeyHTTPSCORS

EOD Historical Data

Real-time and historical stock market data with 150+ exchanges

apiKeyHTTPSCORS

EstimateTax

US federal, state and local income tax calculation for 2026, with the source of every figure

No authHTTPSCORS

FarmDash

DeFi intelligence, protocol risk, yield simulation plus 84 MCP agent tools, free Scout tier

apiKeyHTTPSCORS

Fed Treasury

U.S. Department of the Treasury Data

No authHTTPSCORS ?

Filingrail

SEC EDGAR filings, XBRL financials, Form 4 insider trades, 8-K events and 13F holdings

apiKeyHTTPSCORS ?

Finage

Finage is a stock, currency, cryptocurrency, indices, and ETFs real-time & historical data provider

apiKeyHTTPSCORS ?

Finance Clearly Tax Rates

Current UK and US tax rates, allowances and thresholds

No authHTTPSCORS

Financial Modeling Prep

Realtime and historical stock data

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FinBridge

Official-source financials, segments, valuation, peers and prices for KR, US, JP, TW companies

apiKeyHTTPSCORS

Finnhub

Real-Time RESTful APIs and Websocket for Stocks, Currencies, and Crypto

apiKeyHTTPSCORS ?

FloorGuard

Sourced prop firm daily-loss and max-drawdown rules, plus a drawdown-room check

No authHTTPSCORS

FRED

Economic data from the Federal Reserve Bank of St. Louis

apiKeyHTTPSCORS

Front Accounting APIs

Front accounting is multilingual and multicurrency software for small businesses

OAuthHTTPSCORS

Futures Clock

Trading hours and session windows for 65 futures products on 16 global exchanges

No authHTTPSCORS

FXNewsBias

AI-scored news sentiment for the 8 major forex currencies, refreshed every 3 hours

apiKeyHTTPSCORS

Goldprice.dev

Cross-validated gold, silver & copper spot, futures & 30-year history in 13 currencies

No authHTTPSCORS ?

Halal Terminal

Shariah-compliant stock and ETF screening across 5 methodologies, zakat and purification

apiKeyHTTPSCORS

Helious

US Treasury auction results with the tail and bidder split, plus scored economic releases

No authHTTPSCORS

Helium

News with media bias scoring, balanced news synthesis, live market data, AI options pricing

No authHTTPSCORS

Hotstoks

Stock market data powered by SQL

apiKeyHTTPSCORS

IBAN Analyzer

Resolve an IBAN to its bank name, BIC, city and address for 60+ countries

No authHTTPSCORS

IBANforge

IBAN validation and BIC/SWIFT lookup for 89 countries with 121k+ BIC entries

apiKeyHTTPSNo CORS

IEX Cloud

Realtime & Historical Stock and Market Data

apiKeyHTTPSCORS

IG

Spreadbetting and CFD Market Data

apiKeyHTTPSCORS ?

India GST HSN & SAC

Indian GST HSN and SAC classification code lookup and search

No authHTTPSCORS

Indian Mutual Fund

Get complete history of India Mutual Funds Data

No authHTTPSCORS ?

Intrinio

A wide selection of financial data feeds

apiKeyHTTPSCORS ?

Klarna

Klarna payment and shopping service

apiKeyHTTPSCORS ?

KmalServico Gold Price Dataset

Current gold price per gram at 6 purities for 188 countries, JSON, no auth

No authHTTPSNo CORS

LiquiLens

Public-record bank and lender failure-risk evidence

No authHTTPSCORS

Live SEC Form 4 Insider Trades

Latest SEC Form 4 insider trading filings from EDGAR, by ticker or market-wide

apiKeyHTTPSCORS ?

Marketstack

Real-Time, Intraday & Historical Market Data API

apiKeyHTTPSCORS ?

matchwire.win

Matched prediction-market games across Kalshi, Polymarket US/Intl and Predict.fun

apiKeyHTTPSNo CORS

MercadoPago

Mercado Pago API reference - all the information you need to develop your integrations

apiKeyHTTPSCORS ?

Mono

Connect with users’ bank accounts and access transaction data in Africa

apiKeyHTTPSCORS ?

Moov

The Moov API makes it simple for platforms to send, receive, and store money

apiKeyHTTPSCORS ?

Nigeria PAYE

Nigerian income tax (PAYE) and take-home pay under the Nigeria Tax Act 2025

No authHTTPSCORS

Nordigen

Connect to bank accounts using official bank APIs and get raw transaction data

apiKeyHTTPSCORS ?

NORTH7 Agent

Trading signals, market analysis and geopolitical intelligence

apiKeyHTTPSCORS

OpenFIGI

Equity, index, futures, options symbology from Bloomberg LP

apiKeyHTTPSCORS

Pink Agentic AI Payments

Approval layer for AI agent payments: per-agent budgets, rules, single-use credentials, sandbox

apiKeyHTTPSCORS

PIT Financial State

Point-in-time quarterly revenue for 20 U.S. issuers

apiKeyHTTPSCORS ?

Plaid

Connect with user's bank accounts and access transaction data

apiKeyHTTPSCORS ?

Polygon

Historical stock market data

apiKeyHTTPSCORS ?

PolyKal Fees

Kalshi & Polymarket trading fee rates and formulas as verified JSON

No authHTTPSCORS

Portfolio Optimizer

Portfolio analysis and optimization

No authHTTPSCORS

Razorpay IFSC

Indian Financial Systems Code (Bank Branch Codes)

No authHTTPSCORS ?

Real Time Finance

Websocket API to access realtime stock data

apiKeyNo HTTPSCORS ?

Sales Tax Calculator

Computes exact sales tax amounts and breakdowns for checkout and billing

apiKeyHTTPSCORS

SEC EDGAR Data

API to access annual reports of public US companies

No authHTTPSCORS

Segmara

IPO calendars, filing stages and estimated lockup dates

User-AgentHTTPSCORS

Seiche

Free public funding, FX and capital-market evidence with source clocks

No authHTTPSCORS

SmartAPI

Gain access to set of <SmartAPI> and create end-to-end broking services

apiKeyHTTPSCORS ?

Stanza VAT Validator

Validate EU and UK VAT numbers with country formats, checksums, and VIES status

apiKeyHTTPSNo CORS

StockData

Real-Time, Intraday & Historical Market Data, News and Sentiment API

apiKeyHTTPSCORS

StockFit

SEC filings, financial statements, earnings, ETF holdings and ownership data

apiKeyHTTPSCORS

Styvio

Realtime and historical stock data and current stock sentiment

apiKeyHTTPSCORS ?

Sugra

One API for market data, economics, commodities, climate, and global news. LLM-ready JSON

apiKeyHTTPSCORS

Tax Data

Instant VAT number and tax validation across the globe

apiKeyHTTPSCORS ?

TickerInside

Holdings of every US ETF, which ETFs hold a stock, and overlap between funds, each dated

No authHTTPSCORS

TickerLayer

Real-time and historical market data for stocks, forex, crypto and more

apiKeyHTTPSCORS ?

Top 5 Stocks

Daily AI-ranked stock and crypto watchlists

No authHTTPSCORS ?

Tradier

US equity/option market data (delayed, intraday, historical)

OAuthHTTPSCORS

Twelve Data

Stock market data (real-time & historical)

apiKeyHTTPSCORS ?

Undertow

Public market-depth and sized exit estimates, not executable quotes

No authHTTPSCORS

US Mortgage Calculator

Mortgage payment, amortization, affordability and 50-state property tax data

No authHTTPSCORS

VAT Validation

Validate VAT numbers and calculate VAT rates

apiKeyHTTPSCORS

VoxOdds

Polymarket and Kalshi odds, all-in executable quotes, EV checks and audited forecast scores

No authHTTPSNo CORS

WallstreetBets

WallstreetBets Stock Comments Sentiment Analysis

No authHTTPSCORS ?

XFINLAB

Market events, sentiment, technical analysis and macro data for stocks

apiKeyHTTPSCORS ?

XOOMAR

US market data from SEC, FINRA, CFTC and the Fed: filings, insiders, earnings dates, short interest

No authHTTPSCORS

Yahoo Finance

Real time low latency Yahoo Finance API for stock market, crypto currencies, and currency exchange

apiKeyHTTPSCORS

YNAB

Budgeting & Planning

OAuthHTTPSCORS

Zelothorn

Plain-English explanations of US public companies with SEC filings and earnings data

No authHTTPSCORS

Zoho Books

Online accounting software, built for your business

OAuthHTTPSCORS ?

Finance API FAQ

How many free Finance APIs are there?

There are 96 free public Finance APIs in the directory. 95 support HTTPS, 51 are confirmed to allow CORS and 33 need no API key.

Which Finance APIs work without an API key?

33 Finance APIs need no authentication, including Banking Access Index, Binlist, Brainy Prices and CardBinCheck. You can call them straight away without signing up.

Which Finance APIs can I call from the browser?

APIs with CORS enabled can be called directly from front-end JavaScript. In Finance, that includes Aletheia, Alpaca, Banco do Brasil and Banking Access Index.

Finance API FAQ

How many free Finance APIs are there?

There are 96 free public Finance APIs in the directory. 95 support HTTPS, 51 are confirmed to allow CORS and 33 need no API key.

Which Finance APIs work without an API key?

33 Finance APIs need no authentication, including Banking Access Index, Binlist, Brainy Prices and CardBinCheck. You can call them straight away without signing up.

Which Finance APIs can I call from the browser?

APIs with CORS enabled can be called directly from front-end JavaScript. In Finance, that includes Aletheia, Alpaca, Banco do Brasil and Banking Access Index.