Index onlineMerchant portal
Api Endpoint

x402-data-api.onrender.com

Alt-text audit for any page: finds images with missing alt attributes, flags filename-as-alt and generic alt text, over-long alt, unlabeled svg[role=img], image-map areas and image inputs without alternatives. Counts decorative alt="" separately. For SEO and accessibility agents.

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Offering

Provider
x402-data-api.onrender.com
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Location And Travel
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://x402-data-api.onrender.com/api/seo/alt-check
MIME type
application/json
First seen
2026-10-16T02:54:53.696Z
Last seen
Tags
SEO & Publishing

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": "0xdd5fcEa81CA6f1EB39FEd5B973DE794293B81ba6"
  }
]

Observed health

Status
Healthy
Latest latency
62 ms
Average latency
70 ms
HTTP status
402
Last checked
Reachability
100% over 4 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"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "url": {
          "type": "string",
          "description": "Public URL of the page to audit"
        }
      },
      "required": [
        "url"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "example": {
      "type": "object",
      "properties": {
        "images_total": {
          "type": "number"
        },
        "missing_alt": {
          "type": "number"
        },
        "low_quality_alt": {
          "type": "number"
        },
        "issues": {
          "type": "array"
        }
      }
    }
  },
  "required": [
    "type"
  ]
}