Finance

96 APIs

Finance APIs cover stock quotes, historical prices, company filings, economic indicators, payments and bank data. Market data is where terms matter most: check delayed versus real-time quotes, exchange coverage, how much history the free tier includes, and whether you may display the data publicly. Payment and banking APIs add compliance steps and usually a sandbox before live access.

Alpha Vantage, Finnhub, Polygon and Twelve Data offer stock and forex data with an API key. FRED from the St. Louis Fed is a standard source for economic time series, and SEC EDGAR Data exposes US company filings without a key. Plaid connects apps to bank accounts, and Alpaca offers a trading API with paper trading.

Marketstack

Real-Time, Intraday & Historical Market Data API

API keyHTTPSCORS ?
Aletheia

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

API keyHTTPSCORS
Alpaca

Realtime and historical market data on all US equities and ETFs

API keyHTTPSCORS
Alpha Vantage

Realtime and historical stock data

API keyHTTPSCORS ?
Arkleon

Point-in-time SEC EDGAR fundamentals over /v1

API keyHTTPSCORS ?
Banco do Brasil

All Banco do Brasil financial transaction APIs

OAuthHTTPSCORS
Bank Data

Instant IBAN and SWIFT number validation across the globe

API keyHTTPSCORS ?
Banking Access Index

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

No key HTTPSCORS
Billplz

Payment platform

API keyHTTPSCORS ?
Binlist

Public access to a database of IIN/BIN information

No key HTTPSCORS ?
Boleto.Cloud

A api to generate boletos in Brazil

API keyHTTPSCORS ?
Brainy Prices

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

No key HTTPSCORS
BriefTape

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

API keyHTTPSCORS
CardBinCheck

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

No key HTTPSCORS
Citi

All Citigroup account and statement data APIs

API keyHTTPSCORS ?
C
CongressInvests

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

API keyHTTPSCORS
contix

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

No key HTTPSCORS
D
Degenscan Intel Macro

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

API keyHTTPSNo CORS
Dino.markets

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

API keyHTTPSNo CORS
Drillr

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

API keyHTTPSNo CORS
Econdb

Global macroeconomic data

No key HTTPSCORS
EconPulse

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

API keyHTTPSCORS

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

API keyHTTPSCORS
EstimateTax

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

No key HTTPSCORS
FarmDash

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

API keyHTTPSCORS
Fed Treasury

U.S. Department of the Treasury Data

No key HTTPSCORS ?
Filingrail

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

API keyHTTPSCORS ?
Finage

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

API keyHTTPSCORS ?
FinBridge

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

API keyHTTPSCORS
Finnhub

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

API keyHTTPSCORS ?
FloorGuard

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

No key HTTPSCORS
FRED

Economic data from the Federal Reserve Bank of St. Louis

API keyHTTPSCORS
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 key HTTPSCORS
FXNewsBias

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

API keyHTTPSCORS
Goldprice.dev

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

No key HTTPSCORS ?
Halal Terminal

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

API keyHTTPSCORS
Helious

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

No key HTTPSCORS
Helium

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

No key HTTPSCORS
Hotstoks

Stock market data powered by SQL

API keyHTTPSCORS
IBAN Analyzer

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

No key HTTPSCORS
IBANforge

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

API keyHTTPSNo CORS
I
IEX Cloud

Realtime & Historical Stock and Market Data

API keyHTTPSCORS
IG

Spreadbetting and CFD Market Data

API keyHTTPSCORS ?
India GST HSN & SAC

Indian GST HSN and SAC classification code lookup and search

No key HTTPSCORS
I

Get complete history of India Mutual Funds Data

No key HTTPSCORS ?
Intrinio

A wide selection of financial data feeds

API keyHTTPSCORS ?
Klarna

Klarna payment and shopping service

API keyHTTPSCORS ?
L
LiquiLens

Public-record bank and lender failure-risk evidence

No key HTTPSCORS
matchwire.win

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

API keyHTTPSNo CORS
MercadoPago

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

API keyHTTPSCORS ?
Mono

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

API keyHTTPSCORS ?
Moov

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

API keyHTTPSCORS ?
Nigeria PAYE

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

No key HTTPSCORS
NORTH7 Agent

Trading signals, market analysis and geopolitical intelligence

API keyHTTPSCORS
N
Nordigen

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

API keyHTTPSCORS ?
OpenFIGI

Equity, index, futures, options symbology from Bloomberg LP

API keyHTTPSCORS

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

API keyHTTPSCORS
P
PIT Financial State

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

API keyHTTPSCORS ?
Plaid

Connect with user's bank accounts and access transaction data

API keyHTTPSCORS ?
Polygon

Historical stock market data

API keyHTTPSCORS ?
PolyKal Fees

Kalshi & Polymarket trading fee rates and formulas as verified JSON

No key HTTPSCORS
Razorpay IFSC

Indian Financial Systems Code (Bank Branch Codes)

No key HTTPSCORS ?

Websocket API to access realtime stock data

API keyHTTP onlyCORS ?

API to access annual reports of public US companies

No key HTTPSCORS
Segmara

IPO calendars, filing stages and estimated lockup dates

User-AgentHTTPSCORS
Seiche

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

No key HTTPSCORS
SmartAPI

Gain access to set of and create end-to-end broking services

API keyHTTPSCORS ?

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

API keyHTTPSNo CORS
StockData

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

API keyHTTPSCORS
S
StockFit

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

API keyHTTPSCORS
S
Styvio

Realtime and historical stock data and current stock sentiment

API keyHTTPSCORS ?
Sugra

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

API keyHTTPSCORS
Sales Tax Calculator

Computes exact sales tax amounts and breakdowns for checkout and billing

API keyHTTPSCORS
Tax Data

Instant VAT number and tax validation across the globe

API keyHTTPSCORS ?
TickerInside

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

No key HTTPSCORS
TickerLayer

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

API keyHTTPSCORS ?
Top 5 Stocks

Daily AI-ranked stock and crypto watchlists

No key HTTPSCORS ?
Tradier

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

OAuthHTTPSCORS
Twelve Data

Stock market data (real-time & historical)

API keyHTTPSCORS ?
U
Undertow

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

No key HTTPSCORS
US Mortgage Calculator

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

No key HTTPSCORS
VAT Validation

Validate VAT numbers and calculate VAT rates

API keyHTTPSCORS
VoxOdds

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

No key HTTPSNo CORS
WallstreetBets

WallstreetBets Stock Comments Sentiment Analysis

No key HTTPSCORS ?
XFINLAB

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

API keyHTTPSCORS ?
XOOMAR

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

No key HTTPSCORS
Y
Yahoo Finance

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

API keyHTTPSCORS
YNAB

Budgeting & Planning

OAuthHTTPSCORS
Zelothorn

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

No key HTTPSCORS
Zoho Books

Online accounting software, built for your business

OAuthHTTPSCORS ?

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About Synced Oct 15, 2026

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