API archive entry · source-reported
matchwire.win
Matched prediction-market games across Kalshi, Polymarket US/Intl and Predict.fun
Other Finance APIs
These records share a directory category and are ordered by similarity of reported access facts. They are a shortlist, not proof of drop-in compatibility.
Stanza VAT Validator
Validate EU and UK VAT numbers with country formats, checksums, and VIES status
API key · HTTPS reported · CORS No
AlphaAI
Financial news scored 1-10 for relevance and tagged with stock tickers, plus SEC Form 4 insider and 8-K event data; free tier 100 requests/day
API key · HTTPS reported · CORS No
Earnings Feed
Real-time SEC filings, insider trades, and institutional holdings
API key · HTTPS reported · CORS No
Drillr
Fundamentals, filings, earnings, ownership and events for US, China and Japan equities
API key · HTTPS reported · CORS No
Dino.markets
Matched Kalshi and Polymarket prediction-market data, cross-venue spreads
API key · HTTPS reported · CORS No
IBANforge
IBAN validation and BIC/SWIFT lookup for 89 countries with 121k+ BIC entries
API key · HTTPS reported · CORS No
How to compare them
Coverage
Compare exact endpoints, fields, geography, history, and update frequency.
Operating cost
Model request volume, caching, overages, support, and migration cost.
Integration risk
Test auth, errors, pagination, latency, versioning, and outage behavior.
Data rights
Review attribution, redistribution, retention, privacy, and commercial-use terms.
Source reference
This page separates source-reported facts from questions that need live provider verification.