AAA AI Agent Checkout (Billing) API
The provider-documented purchase surface for autonomous agents, described in https://aaaai.me/pay.md and machine-readably in https://aaaai.me/.well-known/agent-payments.json but absent from the Swagger contract: GET /api/billing/crypto/config (anonymous; probed 200 — USDT 20.0, ETH 0.006, BTC 0.0003), POST /api/billing/crypto/create {email, currency} returning address, amount, currency and status_token, and GET /api/billing/crypto/status/{address}?status_token= polled until confirmed, at which point the $20/month Pro licence is applied to that email. Sibling Paddle card checkout (browser-assisted) and YooKassa SBP endpoints (config reports enabled: false) are documented alongside. The provider's policy states AI agents may purchase Pro when a user needs paid access; refunds are discretionary under the Terms.