Agent Card Validator (A2A)

[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/agentcard",
        "description": "Agent Card Validator (A2A): given an Agent Card URL or JSON, deterministically validates it against the A2A spec — required fields, skill schemas, endpoint reachability, security schemes, provider transparency — and returns a compatibility_score, schema_errors and warnings. The trust layer for the agent economy. Deterministic, Ed25519-signed. 0.01 USDC via x402 on Base. SYNTHORA.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/agentcard",
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Agent Card Validator (A2A): given an Agent Card URL or JSON, deterministically validates it against the A2A spec — required fields, skill schemas, endpoint reachability, security schemes, provider transparency — and returns a compatibility_score, schema_errors and warnings. The trust layer for the agent economy. Deterministic, Ed25519-signed. 0.01 USDC via x402 on Base. SYNTHORA.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "card": {
                "url": "https://example.org",
                "name": "Demo Agent",
                "skills": [
                  {
                    "id": "chat",
                    "name": "chat",
                    "description": "conversational"
                  }
                ],
                "version": "1.0.0",
                "description": "A2A agent card audit demo"
              }
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "agent_card",
              "result": {
                "signed": "ed25519",
                "verdict": "buena",
                "warnings": [
                  "falta campo recomendado: documentationUrl"
                ],
                "skills_count": 1,
                "schema_errors": [],
                "a2a_conformant": true,
                "endpoint_status": 200,
                "pricing_declared": false,
                "security_declared": true,
                "compatibility_score": 82
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "properties": {
                    "url": {
                      "type": "string",
                      "description": "URL of the A2A Agent Card (.well-known/agent-card.json)"
                    },
                    "card": {
                      "type": "object",
                      "description": "Or paste the Agent Card JSON directly"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]