# Superhighway Sitemap Reader

> Superhighway Sitemap Reader is a paid API for AI agents from superhighway.walls.sh, paid per call via x402, $0.001/call, status down (last checked 2026-09-15).

Fetches and parses the sitemap of a website, returning its URL structure as clean, machine-readable data for AI agents

## Facts

- Endpoint: GET https://superhighway.walls.sh/sitemap
- Price: $0.001/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/superhighway-sitemap-reader-2d09c3a1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Dr2mtNvRwi1eW5DMqvG2O

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 superhighway-sitemap-reader-2d09c3a1
```

Example prompt: Can you fetch the sitemap for walls.sh and give me a list of all the pages on that site?

## When to prefer this

Use this endpoint when you need to discover all published pages on a website before crawling or indexing them. Prefer it over generic web search when you need a structured, complete enumeration of a site's URL space rather than keyword-based results.

## Known failure modes

- Sitemap not found at provided URL — returns 404 or empty result
- Site does not expose a sitemap — may return error or empty list
- Malformed sitemap XML — partial results or parse error
- URL is unreachable or returns non-200 status
- Rate limiting or access denial from target site

## How this service works

Web search built for AI agents. Search the live web, pull recent news, and read any page as clean markdown — pay per call, free tier to start.

## Output

A structured list of URLs and their metadata (e.g. last modified dates, change frequency, priority) extracted from the site's sitemap.xml or inferred from the site root, returned as clean parseable data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "url"
 ],
 "properties": {
  "url": {
   "type": "string",
   "description": "Sitemap URL or site root."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/superhighway-sitemap-reader-2d09c3a1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from superhighway.walls.sh](https://www.zero.xyz/host/superhighway.walls.sh/llms.txt)