The XML sitemap was invented in 2005. It lists URLs. But as we move towards Agentic AI, the concept of a “page” (URL) helps human navigation, but constrains agent navigation. Agents want actions.

The API Sitemap

We propose a new standard: the API Sitemap. Instead of listing URLs for human consumption, this file lists API endpoints available for agent interaction.

<url>
  <loc>https://api.mcp-seo.com/v1/check-rank</loc>
  <lastmod>2026-01-01</lastmod>
  <changefreq>daily</changefreq>
  <rel>action</rel>
  <openapi_spec>https://mcp-seo.com/openapi.yaml</openapi_spec>
</url>

This allows an agent to discover capabilities rather than just content.