{
  "x402Version": 2,
  "name": "Kairostamp",
  "description": "Paid machine-to-machine web evidence API. Fetches one public http/https URL server-side and returns a time-stamped, tamper-evident receipt; the change-check endpoint also compares it against a caller-supplied baseline.",
  "freeTrial": {
    "available": true,
    "calls": 1,
    "scope": "one free call per wallet address, on any GET /api/v1/* endpoint",
    "claim_url": "https://kairostamp.com/api/public/trial",
    "claim_method": "POST",
    "claim_body": {
      "wallet": "0x<your payer address>"
    },
    "redeem_header": "X-Kairostamp-Trial",
    "note": "No signature, account or payment required to claim. One grant per address, forever."
  },
  "documentation": "https://kairostamp.com/docs",
  "discovery": "https://kairostamp.com/api/public/discovery",
  "offers": "https://kairostamp.com/api/public/offers",
  "discoveryStatus": "https://kairostamp.com/api/public/discovery-status",
  "openapi": "https://kairostamp.com/openapi.json",
  "mcp": "https://kairostamp.com/mcp",
  "resources": [],
  "note": "Terms are authoritative in the 402 response of each resource. This document is a convenience index."
}