The request names "companyapi", which none of the candidate products is; the closest matches are company-data APIs. CompanyProof offers a company verification API with REST and MCP access 5, DataForB2B offers a B2B company data API with REST and MCP 10, and CompanyData offers company data from official registries via API 8. Stripe, GitHub, HubSpot and Exa appear in the list but are not company-data APIs for this purpose.
A question back: Did you mean a specific company-data API (for example, one that returns registry data, contacts or verification), and do you need REST, MCP or an SDK?
- 1
CompanyProof Company Verification APIcompanyproof.aiwebsite read, tools not yet checked
Verifies company facts against official registry data and returns corrections and claim-level evidence over a REST API and MCP server 5.
official:MCP server · CompanyProof
- 2
DataForB2Bdataforb2b.aiverified and signed
Provides B2B people and company data through a REST API and MCP server, with an enrich-company action that returns comprehensive information about a company 1020.
official:MCP server · DataForB2B
for agents: enrich_company · search_company · enrich_company
- 3
CompanyDatacompanydata.comwebsite read, tools not yet checked
Provides company data sourced from official business registries with API access and an MCP server 8.
official:MCP server · CompanyData+1 community tools built for it
Sources
- 5Company Verification API & AI Grounding | CompanyProofcompanyproof.ai · read 2026-10-29
- 8Company Data from Official Registers | CompanyDatacompanydata.com · read 2026-10-29
- 10DataForB2B — B2B Data API for AI Agentsdataforb2b.ai · read 2026-10-29
- 20DataForB2B (Activepieces): declares "enrich_company" (the record we read and signed)unfragile.ai · read 2026-10-24
For agents: the 10 actions behind this answer
api · ghapi verified and signed
api · stripe verified and signed
custom_api_call · GitHub (Activepieces) verified and signed
Custom API Call — Make a custom API call to a specific endpoint
get-company · HubSpot (Activepieces) verified and signed
Get Company — Gets a company by its ID.
· CompanyProof website read, tools not yet checked
Verify AI-generated company facts against official registry data, return corrections and claim-level evidence, and monitor changes through REST API, MCP and webhooks.
· Datahyena website read, tools not yet checked
Funding rounds, acquisitions, executive moves and hiring signals as one clean API. Deduplicated, resolved to one company, fresh within hours. 50 free credits, no card.
company_research_exa · exa-mcp-server verified and signed
[Deprecated: Use web_search_advanced_exa instead] Research any company to get business information, news, and insights. Best for: Learning about a company's products, services, recent news, or industry position. Returns: Company information from trusted business sources.
· CompanyData website read, tools not yet checked
Access global company databases with emails, contacts, websites, and financials. API access to B2B data from all registered companies.
web-api · slack-sdk verified and signed
enrich_company · DataForB2B (Activepieces) verified and signed
Enrich Company — Retrieve comprehensive information about a company.
Labels are the instruments' verdict and are never changed by ranking. Agents and robots get this same answer as JSON at /api/v1/find?q=…&answer=1 and through the MCP server.