OpenCorporates is the definitive open database of company registrations across 140+ jurisdictions. Amalgament covers US business entities too, then joins them to property, liens, permits, licenses, and government spending, and exposes the whole graph to AI agents over MCP.
OpenCorporates pioneered open company data and is still the deepest source for cross-border corporate registrations. If your question is global and about legal entities, it is the right tool. Amalgament is a different shape: one US-focused layer across many record types, resolved into a graph, and callable by an AI agent, not just by your code.
| OpenCorporates | Amalgament | |
|---|---|---|
| Core data | Company and officer records from official business registries | Business entities plus property, liens, permits, licenses, litigation, patents, and government spending |
| Record types | Corporate entities and officers | 57 record types, resolved into one entity graph |
| Geography | 140+ jurisdictions worldwide | US-focused, deep across record types, 29 states plus federal |
| The join | Company records | Entities joined across sources to the property, filings, and spending behind them |
| AI agent access | REST API | MCP-native: Claude, ChatGPT, and Cursor can query it mid-conversation |
| Getting started | Paid annual API plans; open access limited to journalists, NGOs, and academics | Self-serve, 500 free credits on signup, then usage-based credit packs |
Global coverage. OpenCorporates aggregates official company registries across more than 140 jurisdictions, so for non-US or cross-border corporate research it is the deeper source. If you need to look up a company in Germany or Singapore, that is its home turf, not ours.
Breadth and the join. Amalgament does not stop at the entity: it connects that business to the parcels it owns, the liens filed against it, the permits it pulled, the licenses it holds, and the government dollars it received, all in one schema. The question it answers best is not just 'does this company exist' but 'show me everything on file about this US business and what is behind it.'
OpenCorporates is a REST API your code calls. Amalgament is that, plus a native MCP server, so an AI agent can search records, resolve an entity, and pull its filings in the middle of a conversation with no integration layer. For anyone building a KYB or due-diligence agent, that difference is the whole point.
Business records API · Learn: KYB · MCP server
For US business data with more than entity records and native AI-agent access, yes. For global company coverage across 140+ jurisdictions, OpenCorporates remains the deeper source; the two are strongest at different things.
Amalgament surfaces officers and registered agents as they appear on the public record, and resolves ownership through its parcel and entity graph. It focuses on US public records and excludes private individuals used for consumer decisions.
More comparisons: vs Scraping it yourself · vs A plain data API