# Grizzly Web Summarize

> Grizzly Web Summarize is a paid API for AI agents from grizzly-x402.onrender.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-17).

Fetches a URL and returns an extractive summary, headings, keywords, and metadata for the page content

## Facts

- Endpoint: GET https://grizzly-x402.onrender.com/summarize?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/grizzly-web-summarize-16367dfb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5kUZ5Q--UIRqCXJSsq6D4

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability grizzly-web-summarize-16367dfb
```

Example prompt: Can you summarize the article at https://example.com/blog/post-123 and pull out the key points and headings?

## When to prefer this

Choose this endpoint when you need a quick, structured extractive summary of a single web page — including headings, keywords, and reading metadata — without needing a full scrape or rendered JavaScript. Ideal for agents that need to digest articles, blog posts, or documentation pages on the fly in a pay-per-call model without a subscription.

## Known failure modes

- Invalid or unreachable URL returns an error or non-200 status field
- Paywalled or login-required pages return little to no content
- Very short pages may yield minimal summary sentences
- Large pages may be truncated (truncated: true) with partial content only
- Payment failure via x402 prevents the call from completing

## How this service works

Pay-per-call data tools for agents, paid in USDC on Base via x402.

## Output

Returns a JSON object with the fetched URL, page title, optional byline, an extractive summary as an array of sentences, a list of heading objects (text and level), keyword frequency objects, word count, estimated reading time in minutes, and a boolean indicating if the content was truncated. Extraction method is labeled (e.g. 'extractive-tf').

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "description": "http(s) URL"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "url": {
       "type": "string"
      },
      "title": {
       "type": [
        "string",
        "null"
       ]
      },
      "byline": {
       "type": [
        "string",
        "null"
       ]
      },
      "method": {
       "type": "string"
      },
      "status": {
       "type": "integer"
      },
      "summary": {
       "type": "array",
       "items": {
        "type": "string"
       }
      },
      "headings": {
       "type": "array",
       "items": {
        "type": "object"
       }
      },
      "keywords": {
       "type": "array",
       "items": {
        "type": "object"
       }
      },
      "truncated": {
       "type": "boolean"
      },
      "wordCount": {
       "type": "integer"
      },
      "readingMinutes": {
       "type": "integer"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "url": "https://example.com/",
  "title": "Example Domain",
  "byline": null,
  "method": "extractive-tf",
  "status": 200,
  "summary": [
   "This domain is for use in documentation examples without needing permission."
  ],
  "headings": [
   {
    "text": "Example Domain",
    "level": 1
   }
  ],
  "keywords": [
   {
    "term": "domain",
    "count": 2
   }
  ],
  "truncated": false,
  "wordCount": 19,
  "readingMinutes": 1
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/grizzly-web-summarize-16367dfb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from grizzly-x402.onrender.com](https://www.zero.xyz/host/grizzly-x402.onrender.com/llms.txt)