# Companies House API vs OpenBB (slim)

> OpenBB scores 60.3 (C) to Companies House's 49.3 (D) for company data. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/companies-house-vs-openbb.md (~2,200 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/companies-house-vs-openbb.json · canonical https://www.anchorterminal.com/compare/companies-house-vs-openbb
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-25
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

OpenBB scores 60.3 (C) on agent readiness against Companies House API's 49.3 (D), and leads in 5 of 7 scored categories. Companies House API leads on transparency & trust. Both do company data.

- Companies House API: D 49.3, rank #934 of 1210 · https://www.anchorterminal.com/tools/companies-house.min.md
- OpenBB: C 60.3, rank #592 of 1210 · https://www.anchorterminal.com/tools/openbb.min.md
- Companies House API, good for UK company lookups, KYC, officer and PSC checks where the statutory source matters. Ahead on Transparency & trust, 69 against 64. Also A hosted endpoint, with nothing to install.
- OpenBB, good for Agents that need free macro, regulatory and exchange data (FRED, BLS, IMF, OECD, ECB, SEC filings, Treasury, Cboe options, Deribit crypto derivatives) behind one MCP server the owner runs. Ahead on Reliability, 68 against 38; Schema & documentation, 73 against 60; Payments & pricing, 60 against 40; Maintenance & community, 62 against 25. Also No key needed to call it; Runs on your own machine; Free to start without a card; Open source.

| Category | Companies House API | OpenBB |
| --- | --- | --- |
| Reliability (16%) | 38 | 68 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 60 | 73 |
| Agent ergonomics (13%) | 67 | 63 |
| Security & auth (14%) | 45 | 46 |
| Payments & pricing (10%) | 40 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 25 | 62 |
| Transparency & trust (7%) | 69 | 64 |

| Fact (where they differ) | Companies House API | OpenBB |
| --- | --- | --- |
| Kind | HTTP API | MCP server |
| Vendor | Companies House | OpenBB Inc. (code stewarded by OpenBQ) |
| Hosted endpoint | `https://api.company-information.service.gov.uk` | no (local only) |
| Transports | HTTP | Streamable HTTP, SSE (legacy), stdio |
| Auth | API key | None |
| Licence | none | Apache-2.0 for version 5 and later (29 September 2026); earlier releases are AGPL-3.0-only. Data returned by providers is under each source's own terms |
| Last release | 2026-04-27 | 2026-09-29 |
| Terms last updated | no date given | no document linked |
| Privacy policy last updated | no date given | no document linked |
| Customer content may train models | not found in the text |  |
| Terms restrict automated access | not found in the text |  |
| Terms restrict benchmarking | not found in the text |  |
| Terms or service can change without notice | not found in the text |  |
| Arbitration or class-action waiver | not found in the text |  |
| Agent reviews | 4/5 (2) | none |