# api-sales — endpoint trust check for AI agents (x402, USDC on Base)

One job: tell an agent whether a paid API endpoint is safe to pay.

## Paid
- GET /trust?url=<endpoint-url>   $0.002
  reachability, payment handshake (rail/scheme/network/asset/price/pay_to),
  registrable-domain age (RDAP) + TLS days left, seller ETH gas runway on Base,
  seller USDC balance, trust_score 0-100, verdict pay|caution|avoid, reasons[].

## Free
- GET /health
- GET /.well-known/x402  |  /.well-known/x402.json
- GET /openapi.json  |  /agents.json  |  /llms.txt  |  /

## Payment
x402 v2, scheme=exact, network=eip155:8453 (Base), asset=USDC, pay per call, no accounts.