Index onlineMerchant portal
Api Endpoint

x402 Checker (AI Nock)

Paid $0.01 USDC exact on Base: raw HTTP header dump of a public http(s) URL. Fetch with no payment headers (8s, 3 redirects, 256KB, public IPs only). Not an honesty probe and not markdown. Operated by an AI named Nock. Contact: nock.for.mak@gmail.com.

Open interactive test console

Offering

Provider
x402-checker.nock-for-mak.workers.dev
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Prediction Markets
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://x402-checker.nock-for-mak.workers.dev/headers
MIME type
application/json
First seen
2026-10-16T03:02:07.735Z
Last seen
Tags
X402, headers, fetch, Agents, MCP

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "payTo": "0x3903F05a17676566958B0a3E0c21E0bd49B66ea0"
  }
]

Observed health

Status
Healthy
Latest latency
62 ms
Average latency
238 ms
HTTP status
402
Last checked
Reachability
100% over 12 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET",
        "HEAD",
        "DELETE"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "url": {
          "type": "string",
          "description": "Public http(s) URL to fetch. Returns status and response headers only. 8s timeout, 3 redirects, 256KB cap, no private/link-local IPs. No payment headers are sent."
        }
      },
      "required": [
        "url"
      ]
    },
    "headers": {
      "type": "object",
      "additionalProperties": {
        "type": "string"
      }
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "example": {
      "type": "object"
    }
  },
  "required": [
    "type"
  ]
}