Openapi Lint

Last 30 days

Uptime

100%

Response time

193 ms typical, 193 ms slowest 5%

Last check

36 min ago

Next check

any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://agent402.tools/api/openapi-lint" \
  -H "content-type: application/json" \
  -d '{"spec":{"info":{"description":"An example API","title":"Demo","version":"1.0.0"},"openapi":"3.0.0","paths":{"/users":{"get":{"parameters":[{"description":"Max results","in":"query","name":"limit","schema":{"example":10,"type":"integer"}}],"responses":{"200":{"content":{"application/json":{"schema":{"type":"array"}}},"description":"ok"},"400":{"description":"bad input"}},"summary":"List users","tags":["users"]}}},"servers":[{"url":"https://api.example.com"}]}}'

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagent402.tools%2Fapi%2Fopenapi-lint
const res = await pay("https://agent402.tools/api/openapi-lint", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"spec":{"info":{"description":"An example API","title":"Demo","version":"1.0.0"},"openapi":"3.0.0","paths":{"/users":{"get":{"parameters":[{"description":"Max results","in":"query","name":"limit","schema":{"example":10,"type":"integer"}}],"responses":{"200":{"content":{"application/json":{"schema":{"type":"array"}}},"description":"ok"},"400":{"description":"bad input"}},"summary":"List users","tags":["users"]}}},"servers":[{"url":"https://api.example.com"}]}}),
});
console.log(await res.json());

Example input

{
  "spec": {
    "info": {
      "description": "An example API",
      "title": "Demo",
      "version": "1.0.0"
    },
    "openapi": "3.0.0",
    "paths": {
      "/users": {
        "get": {
          "parameters": [
            {
              "description": "Max results",
              "in": "query",
              "name": "limit",
              "schema": {
                "example": 10,
                "type": "integer"
              }
            }
          ],
          "responses": {
            "200": {
              "content": {
                "application/json": {
                  "schema": {
                    "type": "array"
                  }
                }
              },
              "description": "ok"
            },
            "400": {
              "description": "bad input"
            }
          },
          "summary": "List users",
          "tags": [
            "users"
          ]
        }
      }
    },
    "servers": [
      {
        "url": "https://api.example.com"
      }
    ]
  }
}

Example output

{
  "counts": {
    "error": 0,
    "info": 0,
    "warning": 1
  },
  "ok": true,
  "score": 97,
  "violations": [
    {
      "location": "GET /users",
      "message": "Operation has no operationId - agents can't refer to this call by a stable name.",
      "rule": "operation-missing-operationid",
      "severity": "warning"
    }
  ]
}

Security scan

• No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

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