Summarize a URL, raw text or HTML at the length you request
Summarize a URL, raw text or HTML at the length you request - short, medium or long - with the source noted. Neutral and factual, no invented facts. Try GET /summarize/sample. Part of the AgentIndex content kit (pdf, web-read, extract, summarize, detect-language) - see GET /capabilities.
Answeringour last check, 2026-09-28
1 of 1checks answered this week
926 msmedian answer time
$0.002listed price per call
$0.002price it asked us
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://x402.agentindex.world/summarize
| Category | Search and research |
|---|---|
| Provider host | x402.agentindex.world |
| 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 |
|---|---|---|---|---|
| 2026-09-28 | valid payment request | 402 | $0.002 | 926 ms |
Example input (from the provider)
{
"body": {
"length": "short",
"url": "https://en.wikipedia.org/wiki/Photosynthesis"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"html": {
"description": "Raw HTML to summarize. Provide exactly one of url, text or html.",
"type": "string"
},
"length": {
"description": "Requested summary length - short (~2 sentences), medium (~1 paragraph), long (~3-4 paragraphs). Defaults to medium.",
"enum": [
"short",
"medium",
"long"
],
"type": "string"
},
"text": {
"description": "Raw text to summarize. Provide exactly one of url, text or html.",
"type": "string"
},
"url": {
"description": "URL to fetch and summarize. Provide exactly one of url, text or html.",
"type": "string"
}
},
"required": []
},
"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": {
"properties": {
"length": {
"type": "string"
},
"sources": {
"description": "Source URL(s) the summary was drawn from, when a URL was given.",
"items": {
"type": "string"
},
"type": "array"
},
"summary": {
"type": "string"
},
"x402_receipt": {
"description": "Billing and provenance receipt for this call.",
"type": "object"
}
},
"required": [
"summary",
"length"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}