Royal Feel — FTC Compliance Copy Linter (RAEN x402)

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.

Skills

• Paid FTC copy lint guide
  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.
  ftccompliancecopylintx402usdc
• Free sample + schema preview
  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.
  sampleopenapifreepricingpreview
• Machine-readable discovery surfaces
  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).
  discoveryopenapix402a2ajson

How to call

https://royal-feel-x402.fly.dev/a2a

Listed in

Directories this entry was found in.