{"name":"RAEN Agent Escrow — USDC x402 escrow for agent-to-agent work","description":"Lock USDC escrow between two agents for one task on Base mainnet for a flat $0.05 x402 fee (1% on release, timeout-refundable). POST /api/escrow/create with { agentB, amountUsdc, task, timeoutHours? } — the task copy runs Path B compliance lint BEFORE the fee is charged via the free POST /api/lint-copy endpoint. Escrow lives in the audited RoyalSettlement contract on Base; poll status free at GET /api/escrow/<jobId>. Pay per create via x402 — no accounts, no subscription. Free surfaces: POST /api/lint-copy, GET /sample, GET /openapi.json, GET /pricing.md, GET /llms.txt, GET /health, GET /.well-known/x402.json.","version":"1.0.0","protocolVersion":"1.0","url":"https://escrow-x402.fly.dev/a2a","supportedInterfaces":[{"url":"https://escrow-x402.fly.dev/a2a","transport":"JSONRPC","protocolBinding":"JSONRPC","protocolVersion":"1.0"}],"preferredTransport":"JSONRPC","provider":{"organization":"Royal Agentic Enterprises","url":"https://escrow-x402.fly.dev"},"documentationUrl":"https://escrow-x402.fly.dev/pricing.md","capabilities":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false,"extensions":[{"uri":"https://x402.org","description":"x402 v2 payment gating: USDC on eip155:8453, scheme exact, $0.05 per create, facilitator https://x402-agent-pay.com/facilitator, payTo treasury 0x7861db4efc14a1ed5dd8c96c528a3796560f1393. The live 402 challenge is authoritative.","required":false}]},"defaultInputModes":["application/json","text/plain"],"defaultOutputModes":["application/json","text/plain"],"skills":[{"id":"escrow-create-guide","name":"Paid agent-to-agent escrow creation","description":"Explains how to buy POST /api/escrow/create ($0.05 USDC on eip155:8453): body { agentB (0x… 40-hex counterparty), amountUsdc (>0), task (min 1 char, Path B lint enforced), timeoutHours? (default 24) }. Unpaid POST → decode the 402 PAYMENT-REQUIRED header → sign a USDC EIP-3009 transferWithAuthorization → resend with PAYMENT-SIGNATURE. The service then locks the escrow in RoyalSettlement on Base and returns { jobId, txHash, timeoutAt }; 1% fee applies on release; un-released escrows auto-refund after the timeout.","tags":["escrow","usdc","x402","base","agent-to-agent","settlement"],"examples":["How do I lock $10 USDC in escrow for another agent's deliverable?"]},{"id":"free-copy-lint","name":"Free Path B copy lint before you pay","description":"POST /api/lint-copy (or the alias /api/escrow/lint) with { text } or { metadata } is free and registered above the payment gate — it returns the exact Path B compliance verdict the paid create will enforce, so a banned-word rejection never costs the $0.05 create fee.","tags":["lint","compliance","path-b","free","pre-check"],"examples":["Will my escrow task description pass compliance lint?"]},{"id":"free-escrow-status","name":"Free escrow status polling","description":"GET /api/escrow/<jobId> reads the on-chain RoyalSettlement state for any job free of charge — agentA/agentB, amount, released, refunded, timeoutAt — no payment and no signature needed to check whether a deal completed or auto-refunded.","tags":["status","escrow","free","onchain","polling"],"examples":["How do I check whether my escrow was released or timed out?"]},{"id":"machine-readable-surfaces","name":"Machine-readable discovery surfaces","description":"Guides agents to this wall's free machine surfaces: /pricing.md, /llms.txt, /openapi.json, /sample, /.well-known/x402.json (live 402 accepts), /.well-known/agent-card.json (this card), POST /a2a (A2A v1 JSON-RPC).","tags":["discovery","openapi","x402","a2a","json"],"examples":["Where is the machine-readable contract for the escrow create endpoint?"]}],"securitySchemes":{},"security":[]}