API archive entry · source-reported
Registrum
UK company data: profiles, directors, PSC, iXBRL-parsed financials, ECCTA status
Other Open Data 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.
AcreLens
Land suitability scoring API for any US property: off-grid, rural, recreational, investment
API key · HTTPS reported · CORS Unknown
Black History Facts
Contribute or search one of the largest black history fact databases on the web
API key · HTTPS reported · CORS Yes
CARTO
Location Information Prediction
API key · HTTPS reported · CORS Unknown
Enigma Public
Broadest collection of public data
API key · HTTPS reported · CORS Yes
InfraNode
Unified German city open data: weather, air quality, EV chargers, transit, demographics
API key · HTTPS reported · CORS Unknown
Joshua Project
People groups of the world with the fewest followers of Christ
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.