Api Endpoint

x402-paywall-probe

Probe any public URL and report if it is an x402 paywall - price, network, payTo, scheme. Shop paywalls before you spend. Try GET /probe/sample.

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Offering

Provider: x402.agentindex.world
Method: POST
Offering type: Api Endpoint
Transport type: http
Category: Web Search Research
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://x402.agentindex.world/probe
MIME type: application/json
First seen: 2026-10-16T03:09:13.682Z
Last seen: 2026-11-04T17:17:27.533Z
Tags: X402, probe, Discovery, paywall, price check, MCP

Website

Payment pricing

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

Payment option 1: 0.001 USDC
Atomic price: 1000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "payTo": "0xb3F32bdfe8D07825BC0D7387295aB1D7559BA69d"
  }
]

Observed health

Status: Reachable
Latest latency: 300 ms
Average latency: 945 ms
HTTP status: 405
Last checked: 2026-11-03T01:08:44.930Z
Reachability: 100% over 13 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 probe for an x402 paywall."
        },
        "method": {
          "type": "string",
          "description": "HTTP method to use (GET default, or POST)."
        }
      },
      "required": [
        "url"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "example": {
      "type": "object",
      "properties": {
        "url": {
          "type": "string"
        },
        "reachable": {
          "type": "boolean"
        },
        "http_status": {
          "type": "integer"
        },
        "is_x402": {
          "type": "boolean"
        },
        "price_usdc": {
          "type": "number"
        },
        "network": {
          "type": "string"
        },
        "pay_to": {
          "type": "string"
        },
        "x402_receipt": {
          "type": "object"
        }
      },
      "required": [
        "url",
        "reachable",
        "is_x402"
      ]
    }
  },
  "required": [
    "type"
  ]
}