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PapaCasper Sitemap URL Validator
x402
PapaCasper Sitemap URL Validator is a paid API for AI agents from papacasper.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Validates the sitemap.xml for a given URL, checking its structure, accessibility, and compliance
Price / call$0.01
Success—
StatusUnknown
How this service works
A hosted MCP server exposing utility tools any AI agent can call over HTTP — page-to-markdown, SEO audits, robots/sitemap checks, and more.
Output
Returns a validation report for the target site's sitemap.xml, including whether the sitemap is accessible, structurally valid XML, the number of URLs listed, any detected errors or warnings, and overall compliance status for search engine submission.
Example use cases
Pre-launch SEO sitemap check
“I'm about to launch my new site at https://newstartup.io — can you check whether the sitemap.xml is valid and properly formatted so search engines can index it without issues?”
Diagnosing indexing problems
“My pages aren't showing up in Google search results. Can you validate the sitemap at https://myecommerce.com and tell me if there are any errors or accessibility issues with it?”
Routine SEO audit for client site
“I'm auditing an SEO site for a client at https://clientbrand.com — please check their sitemap.xml and let me know if it's valid, how many URLs it includes, and whether there are any problems.”
Technical details
Endpoint
POSThttps://papacasper.com/mcp/pay/sitemap_url_validatorWhen to prefer
Use this endpoint when you need a quick, automated check of a website's sitemap.xml validity as part of an SEO audit, pre-launch checklist, or ongoing site health monitoring workflow. It is especially useful when you want to verify sitemap accessibility and structure without manually downloading and inspecting the file. Prefer this over a full SEO audit tool when the specific concern is sitemap compliance for search engine indexing.
Side effects
- Sitemap not found (404) — site has no sitemap.xml at the expected path
- Connection timeout — target site is slow or unreachable
- Invalid URL input — URL is malformed or missing protocol
- Sitemap is malformed XML — returns parse errors
- Sitemap is too large — exceeds size or URL count limits
- Access denied (403) — sitemap is blocked by the server or robots.txt
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| urlrequired | string | URL of the sitemap.xml to validate (or any page URL — /sitemap.xml on that origin is used) |
Output
Schema · Response
{
"type": "object"
}Tags
x402
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