API archive entry · source-reported
Finnhub
Real-Time RESTful APIs and Websocket for Stocks, Currencies, and Crypto
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.
Invoice & Payment ID Validator
Validate IBAN, BIC, EU VAT (live VIES), UK VAT and EIN, with a pay/review/hold payee check
API key · HTTPS reported · CORS Unknown
USTariffRates
US HTS lookup and origin-specific tariff breakdowns with source context
API key · HTTPS reported · CORS Unknown
Live SEC Form 4 Insider Trades
Latest SEC Form 4 insider trading filings from EDGAR, by ticker or market-wide
API key · HTTPS reported · CORS Unknown
Klarna
Klarna payment and shopping service
API key · HTTPS reported · CORS Unknown
Arkleon
Point-in-time SEC EDGAR fundamentals over /v1
API key · HTTPS reported · CORS Unknown
Agent Toolbelt
AI-generated stock analysis (investment thesis, valuation, insider signal, earnings) from live fundamentals, as structured JSON
API key · HTTPS reported · CORS Unknown
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.