S

SYNTHORA · Agentcard

by SYNTHORA

POSTBase

$0.05

per call · USD Coin on Base

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.

Endpoint

POST https://api.hergertsynthora.com/v1/agentcard

1

Calls / 30d

1

Unique payers / 30d

Aug 12

Last called

exact

Payment scheme

Call this service

TypeScript · @x402/fetch
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://api.hergertsynthora.com/v1/agentcard", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "card": {
      "description": "A2A agent card audit demo",
      "name": "Demo Agent",
      "skills": [
        {
          "description": "conversational",
          "id": "chat",
          "name": "chat"
        }
      ],
      "url": "https://example.org",
      "version": "1.0.0"
    }
  }),
});
const data = await res.json();
cURL
curl -X POST \
  "https://api.hergertsynthora.com/v1/agentcard" \
  -H "Content-Type: application/json" \
  -d '{"card":{"description":"A2A agent card audit demo","name":"Demo Agent","skills":[{"description":"conversational","id":"chat","name":"chat"}],"url":"https://example.org","version":"1.0.0"}}' \
  -H "X-PAYMENT: <signed x402 payment>"

Example response

{
  "niche": "agent_card",
  "ok": true,
  "result": {
    "a2a_conformant": true,
    "compatibility_score": 82,
    "endpoint_status": 200,
    "pricing_declared": false,
    "schema_errors": [],
    "security_declared": true,
    "signed": "ed25519",
    "skills_count": 1,
    "verdict": "buena",
    "warnings": [
      "falta campo recomendado: documentationUrl"
    ]
  }
}

Payment details

Pay to0x10800a5a5b9d72251566ec651e862a8b4b427de0
AssetUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913
NetworksBase
Schemesexact

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