Public Page Changes with Source Evidence
Public Page Changes with Source Evidence: Read one public HTTPS page and compare its static text with your previous snapshot. Returns added/removed lines, exact quotes for up to 5 search terms, headings, links and a reusable snapshot. Max 12,000 text characters; reports truncation. No login, JavaScript rendering or background monitoring; call again when needed. 0.01 USDC includes one public page, up to 5 terms and one caller-supplied previous snapshot.
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://market.datapackvibe.com/x402/assistant-public-page-change-evidence
| Category | Code and developer |
|---|---|
| Provider host | market.datapackvibe.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-04 | valid payment request | 402 | $0.01 | 928 ms |
Example input (from the provider)
{
"body": {
"previous": null,
"terms": [
"example",
"domain"
],
"url": "https://www.iana.org/help/example-domains"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"previous": {
"additionalProperties": false,
"default": null,
"properties": {
"requested_url": {
"maxLength": 2048,
"type": "string"
},
"retrieved_at": {
"maxLength": 40,
"type": "string"
},
"sha256": {
"pattern": "^[0-9a-f]{64}$",
"type": "string"
},
"source_url": {
"maxLength": 2048,
"type": "string"
},
"text": {
"maxLength": 12000,
"type": "string"
},
"text_truncated": {
"type": "boolean"
},
"version": {
"enum": [
1
],
"type": "integer"
}
},
"required": [
"version",
"requested_url",
"source_url",
"retrieved_at",
"text",
"sha256",
"text_truncated"
],
"type": [
"object",
"null"
]
},
"terms": {
"default": [
"example",
"domain"
],
"items": {
"maxLength": 80,
"minLength": 1,
"type": "string"
},
"maxItems": 5,
"type": "array"
},
"url": {
"default": "https://www.iana.org/help/example-domains",
"maxLength": 2048,
"type": "string"
}
},
"required": [
"url",
"terms",
"previous"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"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"
}