Listing Roast x402

A standalone $1 Base mainnet x402 route for builders who want paid agent/API listing copy critiqued before promoting it.

Paid route: POST /api/listing-roast. Price: $1.00. Output: JSON with skip reasons, top fixes, a rewrite, and stop-or-upgrade guidance.

View schema MCP metadata Cash register

curl -i -X POST https://listing-roast-x402-service-production.up.railway.app/api/listing-roast \
  -H 'Content-Type: application/json' \
  -d '{"agentName":"Example x402 API","listingText":"A paid x402 API that helps builders check whether buyer agents understand the offer before paying.","targetBuyer":"x402 and MCP builders","currentPrice":"$1.00","currentCheckoutPath":"/api/listing-roast","goal":"Increase first paid conversion"}'

No subscriptions. No accounts. The protected route returns HTTP 402 until a valid x402 payment is attached.