AltAPIs

API archive entry · source-reported

Citi

All Citigroup account and statement data APIs

Provider / source website

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

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

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Operating cost

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Integration risk

Test auth, errors, pagination, latency, versioning, and outage behavior.

Data rights

Review attribution, redistribution, retention, privacy, and commercial-use terms.

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Source reference

public-apis/public-apis

This page separates source-reported facts from questions that need live provider verification.