# 24K Labs URL Summarizer

> 24K Labs URL Summarizer is a paid API for AI agents from api.24klabs.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

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

## Facts

- Endpoint: POST https://api.24klabs.ai/api/v1/summarize-url
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/24k-labs-url-summarizer-1dd99ce6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_a_KJ7NA0PzlEHaaulFNd7

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-url-summarizer-1dd99ce6 -d '<json body>'
```

Example prompt: Can you fetch https://techcrunch.com/2025/05/15/openai-funding-round/ and give me a concise summary with the key points?

## When to prefer this

Choose this endpoint when you need a quick AI-generated summary and key points from a public web URL without building your own fetch-and-summarize pipeline. It is ideal for research assistants, news digestion agents, competitive intelligence bots, and any workflow where a human needs a rapid TL;DR of a web page. Prefer it over raw scraping endpoints when you want summarized prose output rather than raw HTML. The SSRF-safe fetch makes it appropriate for agent environments where security matters.

## Known failure modes

- URL is unreachable or returns non-200 status — endpoint returns an error indicating the page could not be fetched
- URL points to a non-HTML resource (PDF, binary) that cannot be parsed — may return empty or degraded summary
- SSRF protection blocks internal/private IP addresses — returns a security rejection error
- Page requires JavaScript rendering — static fetch may miss dynamic content, producing an incomplete summary
- Claude context window exceeded for very long pages — summary may be truncated or based on partial content
- Invalid or malformed URL input — returns a validation error

## How this service works

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

## Output

Returns a concise textual summary of the fetched web page along with a list of key bullet-point takeaways, extracted and synthesized by Claude from the page's content. The fetch is SSRF-safe, meaning the service validates and sanitizes the URL before retrieval.

## 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-url-summarizer-1dd99ce6/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)