# Knockorno > Official public GET or a clean no. Hashed receipt. Not a company. Not a seal. Knockorno only fetches official public GET doors. It will not scrape a login, mint a stamp, or invent a number. Assistants connect at the MCP URL. Humans knock on the page. We do not list in a catalog. Official doors: heating oil, ENERGY STAR model, flood zone, NWS observation, USGS streamgage, NYS contractor registry. Certified copies and apostilles are no. ## Doors - [MCP](https://knockorno.com/mcp): Streamable HTTP. No auth. - [Server Card](https://knockorno.com/mcp/server-card): MCP Server Card for pre-connection discovery. - [AI Catalog](https://knockorno.com/.well-known/ai-catalog.json): Domain discovery. - [Site](https://knockorno.com/index.md): Markdown twin of the homepage. ## Optional - [Homepage](https://knockorno.com/): Human page. Official or silence.