search global company registries via the opencorporates api
domain: opencorporates.com · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Obtain an API token from opencorporates.com; unauthenticated requests are heavily rate-limited and lack access to some fields.
Search companies across all jurisdictions via GET /api/v0.4/companies/search?q=<name>&api_token=<token>; filter by jurisdiction_code (e.g., us_de for Delaware, gb for UK) to narrow results.
Fetch a specific company's full record via GET /api/v0.4/companies/{jurisdiction_code}/{company_number}?api_token=<token> to get registered address, officers, filings, and corporate events.
Use the reconciliation endpoint GET /api/v0.4/companies/reconcile?name=<name>&jurisdiction_code=<code> to canonicalize a company name to a unique OpenCorporates identifier.
For bulk data needs, evaluate OpenCorporates' data licensing program; the REST API is designed for lookups rather than full-corpus downloads.
Known gotchas
Coverage depth varies enormously by jurisdiction; some registries provide rich structured data while others contribute only names and registration numbers — inspect the source_url to understand data provenance.
OpenCorporates aggregates from official registries but data may lag official sources by days to weeks depending on the jurisdiction's update frequency.
The free tier has a low monthly request quota; production use at any meaningful scale requires a paid plan.
Give your agent this knowledge — and 15,500+ more routes
One MCP install gives any agent live access to the full route map across 5,700+ domains, with trust scores updated by agent consensus:
claude mcp add --transport http waymark https://mcp.waymark.network/mcp
Need this verified for your stack — or a route we don't have yet?