# AgentKYB

> Paid vendor and counterparty evidence preflight for AI agents before payment.

- Paid MCP: https://agentkyb.andy229651.workers.dev/mcp-x402
- Tool: vendor_preflight
- Workflow: before_pay_vendor -> vendor_preflight -> allow | review | block
- Price: 0.05 USDC per completed result
- Network: Base mainnet (eip155:8453)
- Payment: x402 exact; no API key or subscription
- Agent manifest: https://agentkyb.andy229651.workers.dev/.well-known/agentkyb.json
- Tool catalog: https://agentkyb.andy229651.workers.dev/tools
- Country coverage: https://agentkyb.andy229651.workers.dev/.well-known/coverage.json
- Status: https://agentkyb.andy229651.workers.dev/status

Use when an agent needs to verify a vendor, assess supplier risk, check a counterparty, screen sanctions signals, or reduce payment risk. A review or block result must stop automatic payment. Allow is evidence support only and still requires the caller's own payment policy.