kya-brasil
by FastDrop
Know-your-agent for Brazil: e-CNPJ-signed credentials binding AI agents to companies, KYB-checked
Know-your-agent for Brazil: e-CNPJ-signed credentials binding AI agents to companies, KYB-checked Official MCP Registry: io.github.celfons/kya-brasil@0.2.0. Remote endpoint: https://kya-br-agents.marcelfons.workers.dev/mcp
Problem it solves
Discoverable MCP server listed in the official MCP Registry.
How it's different
Remote MCP endpoint ingested from the official registry and probed by FastDrop.
Ingested from the official MCP Registry
FastDrop pulled this entry from the official MCP Registry as io.github.celfons/kya-brasil and probed the endpoint. The maker did not submit it, so the outbound link is not endorsed
and the description is not theirs.
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Read directly from the endpoint on 13 Oct 2026. Not supplied by the maker.
kya_registerRegister an AI agent for a Brazilian company: agent key (EVM address or Web Bot Auth Ed25519 key), CNPJ and a mandate (JSON, validated against /.well-known/kya-mandate.schema.json). Returns a one-time
kya_verify_paidSame as the free verification, without daily limit, plus a signed receipt of the verification itself (what was checked, when). Pay per call with x402.
kya_check_actionSigned verdict: is this action (action, amount, currency, counterparty) inside the agent's mandate and is the credential active? Evaluates the reserved mandate fields; lists the fields it did not eval
kya_renewRe-issue the credential for 90 more days if KYB Brasil still clears the company. The company signs the renewal challenge with its e-CNPJ.
kya_proveFree. Send both signatures of the challenge. The e-CNPJ chain is validated against ICP-Brasil roots, the CNPJ must match, KYB Brasil must clear the company; then the credential is issued (90 days, Ed2
kya_verifyFree (50/day per IP). The agent's current credential: principal company, mandate, KYB snapshot, status (active, suspended, revoked, expired) and signature. Also by key: /v1/agents/by-key?kind=&id=.
kya_renew_proveFree. Second step of kya_renew: send both signatures of the renewal challenge; the credential is re-issued for 90 days if KYB Brasil still clears the company.
kya_revokeFree. The company revokes the credential at once (e-CNPJ-signed request). Revocations are listed at /v1/revocations.
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