# 24K Labs Summarize URL

> 24K Labs Summarize URL is a paid API for AI agents from api.24klabs.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Fetches a web page via SSRF-safe request and returns a concise AI-generated summary with key points using Claude.

## Facts

- Endpoint: POST https://api.24klabs.ai/api/summarize-url
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/24k-labs-summarize-url-09d5b571
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cyb8o0pTz_uoEoWAa-mUx

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 24k-labs-summarize-url-09d5b571 -d '<json body>'
```

Example prompt: Can you fetch this article and give me a concise summary with the key points? https://example.com/some-long-article

## When to prefer this

Choose this endpoint when you need a quick, AI-generated summary of a public web page without building your own fetch-and-summarize pipeline. It's ideal for agents that need to digest articles, news, or documentation on the fly. Prefer it over raw scraping endpoints when you want structured key points returned directly, not raw HTML.

## Known failure modes

- URL is unreachable or returns non-200 status — fetch fails with an error
- URL points to a paywalled or login-gated page — only publicly visible content is summarized
- Page is mostly JavaScript-rendered with no static HTML content — may return empty or poor summary
- URL resolves to a non-text resource (PDF, image, binary) — summarization may fail or be incomplete
- SSRF guard blocks internal/private IP ranges — returns an error for localhost or intranet URLs

## How this service works

Fetch a web page and return a concise summary and key points (SSRF-safe fetch + Claude).

## Output

Returns a concise prose summary of the web page content along with a list of key bullet-point takeaways, distilled from the full page text using Claude.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "summary": "..."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/24k-labs-summarize-url-09d5b571/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.24klabs.ai](https://www.zero.xyz/host/api.24klabs.ai/llms.txt)