{"service":"bay-run","summary":"The bounded OAuth demo is free. One OpenAI-compatible endpoint also supports x402 pay-per-call when settlement_ready is true. No subscription is required.","tiers":[{"name":"demo (free)","price":"free","how":"Mint a bearer token and send 'Authorization: Bearer <token>' on /v1/* and /mcp tools/call. Or obtain one via OAuth discovery.","token_mint":"https://run.huggingbay.xyz/oauth/token","oauth":"https://run.huggingbay.xyz/.well-known/oauth-protected-resource","limits":{"per_minute_per_ip":20,"per_day_per_ip":100}},{"name":"x402 pay-per-call (testnet)","price_usd_per_call":0.001,"network":"eip155:84532","asset":"USDC","settlement_ready":true,"how":"POST /x402/chat/completions with no token; decode PAYMENT-REQUIRED, sign the accepted x402 v2 payment, then retry with PAYMENT-SIGNATURE. A successful paid response includes PAYMENT-RESPONSE and x-bay-run-payment-receipt.","discovery":"https://run.huggingbay.xyz/.well-known/x402","note":"Settlement and durable replay-safe receipts are live."}],"operator_note":"MCP discovery is free. MCP tool calls use OAuth/Bearer; the first paid beta is deliberately limited to the REST chat-completions twin."}