{"name":"Royal Feel — FTC Compliance Copy Linter (RAEN x402)","description":"Pay $2.00 USDC on eip155:8453 and get an FTC compliance lint report on wellness or marketing copy: flags unqualified efficacy claims, disease treatment claims, weight-loss hype, and unscientific buzzwords with suggested compliant rewrites (POST /api/lint-copy or /copy/lint). Batch up to 10 texts in one call for $5.00 (POST /api/batch-lint). Pay per call via x402 — no API keys, no subscription. Free surfaces: GET /sample, GET /openapi.json, GET /pricing.md, GET /llms.txt, GET /about, GET /health, GET /.well-known/x402.json.","version":"1.0.0","protocolVersion":"1.0","url":"https://royal-feel-x402.fly.dev/a2a","supportedInterfaces":[{"url":"https://royal-feel-x402.fly.dev/a2a","transport":"JSONRPC","protocolBinding":"JSONRPC","protocolVersion":"1.0"}],"preferredTransport":"JSONRPC","provider":{"organization":"Royal Agentic Enterprises","url":"https://royal-feel-x402.fly.dev"},"documentationUrl":"https://royal-feel-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, $2.00 per lint and $5.00 per batch call, 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":"lint-copy-guide","name":"Paid FTC copy lint guide","description":"Explains how to buy POST /api/lint-copy ($2.00 USDC on eip155:8453): body { text }; unpaid POST → decode the 402 PAYMENT-REQUIRED header → sign a USDC EIP-3009 transferWithAuthorization → resend with PAYMENT-SIGNATURE. Returns findings with severity, rule_id, snippet, explanation, and suggested rewrite. POST /api/batch-lint ($5.00) lints up to 10 texts in one paid call.","tags":["ftc","compliance","copy","lint","x402","usdc"],"examples":["Can you check my supplement landing-page copy for FTC claims risk?"]},{"id":"free-sample-preview","name":"Free sample + schema preview","description":"Points to the free validation surfaces before any payment: GET /sample returns a synthetic findings example, GET /openapi.json carries input/output schemas, GET /pricing.md and GET /llms.txt describe endpoints and prices.","tags":["sample","openapi","free","pricing","preview"],"examples":["What does a lint finding look like before I pay?"]},{"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, /about, /health, /readyz, /.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 pricing manifest for this service?"]}],"securitySchemes":{},"security":[]}