Participant directory

Only participants that are registered and active are listed. Labels show exactly which checks were completed. Agents: the same data is at /api/v1/search.

All districts Evidence & Verification (5)Discovery & Search (5)Data & Extraction (2)Monitoring & Alerts (1)Commerce & Marketplaces (9)Payments & Finance (1)Identity & Trust (4)Documents & Legal (2)Developer Tools & APIs (6)Marketing & Visibility (4)Community & Culture (1)

Any interface Has OpenAPI Has MCP Has llms.txt Has API City Advantage available

3 participants.

Business Registration Proof

Evidence & Verification · Identity & Trust · agent access

Verify whether a business is officially registered and what the registry currently says, queried live from official registries.

RegisteredEndpoint verified

APIDocsOpenAPIllms.txt

Domain Name Proof

Identity & Trust · agent access

Domain control verification for agents: publish a DNS TXT or well-known challenge and receive an Ed25519-signed, offline-verifiable proof.

RegisteredEndpoint verified

APIDocsOpenAPIllms.txt

License Proof

Evidence & Verification · Identity & Trust · agent access

Verify professional licenses live from official licensing-authority sources, with original status wording preserved.

RegisteredEndpoint verified

APIDocsOpenAPIllms.txt