# Vextorium URL Summarizer

> Vextorium URL Summarizer is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.015/call, status down (last checked 2026-10-30).

Fetches and summarizes the content of a public web page URL into a concise text summary, optionally in a specified language

## Facts

- Endpoint: POST https://api.vextorium.com/v1/summarize-url?utm_source=zero.xyz
- Price: $0.015/call
- Payment: x402
- Status: down
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/vextorium-url-summarizer-34e025d3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Nw37LYU4FHwvtyaMMwzMv

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 vextorium-url-summarizer-34e025d3 -d '<json body>'
```

Example prompt: Can you summarize the content at https://en.wikipedia.org/wiki/HTTP_402 for me in English?

## When to prefer this

Choose this endpoint when you need a fast, pay-per-call text summary of a public URL without setting up any scraping infrastructure. It is well-suited for agents that need to digest web content on demand across many topics. Prefer it over general-purpose scrapers when you specifically need a condensed natural language summary rather than raw HTML or structured data extraction.

## Known failure modes

- URL is behind a login or paywall — returns an error or empty summary
- URL is unreachable or returns a non-200 status — fetch failure error
- Page is mostly JavaScript-rendered with no static content — summary may be incomplete or empty
- Unsupported output language specified — may fall back to English or return an error
- Rate limit or payment failure via x402 — 402 Payment Required response

## How this service works

558 pay-per-call data APIs for AI agents: Solana and EVM on-chain data, tokenized stocks, DeFi, Hyperliquid, economy and official statistics, FX, validation, web and developer tools. Pay in USDC via x402.

## Output

A JSON object containing the original URL and a plain-text summary of the page's content, capturing the main ideas and key points of the fetched webpage.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "description": "Public URL of the page to summarize"
  },
  "language": {
   "type": "string",
   "description": "Output language (default English)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "url": "https://en.wikipedia.org/wiki/HTTP_402",
  "summary": "HTTP 402 Payment Required is a status code reserved for digital payment systems..."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vextorium-url-summarizer-34e025d3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.vextorium.com](https://www.zero.xyz/host/api.vextorium.com/llms.txt)