# OpenVerbs Web Sitemap Parser

> OpenVerbs Web Sitemap Parser is a paid API for AI agents from web.openverbs.com, paid per call via x402, $0.006/call, status unknown (last checked 2026-09-13).

Discovers and parses a website's XML sitemaps (via robots.txt, explicit URL, or /sitemap.xml) into a bounded list of URLs with metadata including lastmod, changefreq, and priority

## Facts

- Endpoint: POST https://web.openverbs.com/v1/sitemap
- Price: $0.006/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/openverbs-web-sitemap-parser-4d36c1ff
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8q-8vDHZfcdqdsoqbyDpG

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 openverbs-web-sitemap-parser-4d36c1ff -d '<json body>'
```

Example prompt: Can you enumerate all the pages on example.com by discovering and parsing its sitemaps — I want a list of URLs with their last-modified dates and update frequencies?

## When to prefer this

Use this endpoint when you need to enumerate a site's pages systematically via its declared sitemap rather than crawling HTML links. Ideal for SEO analysis, content auditing, change monitoring, or building a seed URL list for a crawler. Prefer this over manual HTML scraping when the site publishes sitemaps, as it provides structured metadata (lastmod, changefreq, priority) and handles sitemap-index nesting automatically.

## Known failure modes

- No sitemap found — site has no sitemap.xml, no Sitemap: directive in robots.txt, and no explicit sitemap URL provided
- Private/loopback/link-local URLs rejected with an error
- Sitemap malformed or not valid XML — parser returns error
- Site blocks sitemap fetches with 403/401 — returns HTTP error
- Truncated results when sitemap contains very large numbers of URLs — truncated flag set to true
- Network timeout if the target site is slow or unreachable

## How this service works

Discover a site's XML sitemaps (via robots.txt Sitemap: directives, an explicit sitemap URL, or the conventional /sitemap.xml) and parse them into a bounded list of URLs with their lastmod, changefreq and priority. Follows sitemap-index files to their child sitemaps. Fetches and URL counts are capped (with a `truncated` flag) to stay fast and memory-bounded. The reliable way for an agent to enumerate a site's pages.

## Output

A bounded list of URLs discovered from the site's sitemaps, each entry including the URL string and available metadata (lastmod, changefreq, priority). Sitemap-index files are followed to their child sitemaps. A `truncated` boolean flag indicates if the result was capped for performance. Fetches and URL counts are bounded to remain fast and memory-efficient.

## Request schema (JSON Schema)

```json
{
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "type": "string",
     "enum": [
      "POST"
     ]
    },
    "bodyType": {
     "type": "string",
     "enum": [
      "json",
      "form-data",
      "text"
     ]
    },
    "body": {
     "type": "object",
     "properties": {
      "url": {
       "type": "string",
       "format": "uri",
       "maxLength": 2048,
       "description": "Public http(s) URL to fetch. Private/loopback/link-local addresses are rejected."
      }
     },
     "required": [
      "url"
     ],
     "additionalProperties": false
    }
   },
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "additionalProperties": false
  }
 },
 "required": [
  "input"
 ]
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/openverbs-web-sitemap-parser-4d36c1ff/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from web.openverbs.com](https://www.zero.xyz/host/web.openverbs.com/llms.txt)