Use ping when you need a pass/fail verdict that a URL serves expected content

Use ping when you need a pass/fail verdict that a URL serves expected content: expected HTTP status (default 200), a required body substring, and/or an exact match on one JSON field. One automated fetch at request time, signed receipt with per-condition results. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.

Endpoint

POST https://aemb.pro/v1/check/verify

Our checks, last 30 days

Example input (from the provider)

{
  "body": {
    "expect_body_contains": "Example Domain",
    "expect_status": 200,
    "idempotency_key": "880e8400-e29b-41d4-a716-446655440003",
    "url": "https://example.com"
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
}

Promised output schema (from the provider)

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "properties": {
            "expect_body_contains": {
              "description": "Substring that must appear in the response body (max 5000 chars). Skipped when empty or omitted",
              "type": "string"
            },
            "expect_json_equals": {
              "description": "Expected value at expect_json_path; compared by canonical JSON equality. Defaults to null when omitted"
            },
            "expect_json_path": {
              "description": "Dot-separated path into the JSON body, e.g. 'data.price' (max 500 chars). Only evaluated when set",
              "type": "string"
            },
            "expect_status": {
              "description": "Expected HTTP status code; truncated to an integer. Defaults to 200 when omitted",
              "type": "number"
            },
            "idempotency_key": {
              "description": "Idempotency key: UUID v4, client-generated, one per logical request. Replaying the same key on this tool returns the original receipt \u2014 the action is not re-run, and the first request's receipt wins even if you resend different inputs. Published example keys are rejected. Keys are scoped per tool and per payer account: a key never returns another wallet's receipt.",
              "type": "string"
            },
            "url": {
              "description": "HTTPS URL to check (max 2000 chars; no credentials in URL). Fetched once; up to 3 redirects followed, 10s timeout, 1MB body cap",
              "type": "string"
            }
          },
          "required": [
            "url",
            "idempotency_key"
          ],
          "type": "object"
        },
        "bodyType": {
          "enum": [
            "json",
            "form-data",
            "text"
          ],
          "type": "string"
        },
        "method": {
          "enum": [
            "POST",
            "PUT",
            "PATCH"
          ],
          "type": "string"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method",
        "bodyType",
        "body"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}

This page as JSON