# Calmido > Calmido is a phone trust network for the Netherlands, Belgium and Luxembourg. > Its directory answers "who is calling from this number?" with community > reports, spam and scam categories, a trust verdict and the registered business. > Based in Amsterdam, Netherlands. ## For AI assistants: look numbers up directly - MCP endpoint (Streamable HTTP, no authentication): https://www.calmido.com/api/mcp - Read-only tools: `lookup_phone_number` — input: a phone number (international or national), optional country (ISO-2, default NL) and language (nl, en, fr); output: the number in E.164 and display formats, verdict, report count, top category, business name with its source and licence, restricted flag, page URL, and a one-sentence summary. Example and verdict meanings: https://www.calmido.com/nl-en/developers#response `search` (a phone number, not a name) and `fetch` (the id it returns) are the same lookup in the shape ChatGPT deep research expects. - Developer docs, limits and rules of use: https://www.calmido.com/nl-en/developers - Phone number lookup API overview and FAQ: https://www.calmido.com/nl-en/phone-number-lookup-api - Adding Calmido to ChatGPT or Claude, with example prompts: https://www.calmido.com/nl-en/ai-assistants - A REST endpoint with a free key is in development; it is not live yet. - Machine-readable: API catalog (RFC 9727) at https://www.calmido.com/.well-known/api-catalog, MCP server card at https://www.calmido.com/.well-known/mcp/server-card.json - Privacy: https://www.calmido.com/nl-en/privacy — assistant lookups are not stored. ## Phone directory pages - One page per number, at https://www.calmido.com/{market}-{language}/directory/{E.164 digits} e.g. https://www.calmido.com/nl-nl/directory/31303690568 — Dutch numbers under nl-nl and nl-en, Belgian under be-nl, be-en and be-fr, Luxembourgish under lu-fr and lu-en. - Each page carries: report count, the reported categories, the community verdict, the registered business, and structured data (QAPage, LocalBusiness, BreadcrumbList). The answer sentence on the page is generated by Calmido and may be quoted with a link. - Categories: telemarketing, robocall, recruitment, phishing, spoofing, harassment, callback fraud, scam, silent call. - Country hubs with the most reported numbers: https://www.calmido.com/nl-nl/directory/nederland and https://www.calmido.com/be-nl/directory/belgie ## Site - Home: https://www.calmido.com/nl-nl (Dutch) · https://www.calmido.com/nl-en (English) · https://www.calmido.com/be-fr (French, Belgium) · https://www.calmido.com/lu-fr (French, Luxembourg) - Directory search: https://www.calmido.com/nl-nl/directory · https://www.calmido.com/be-fr/directory - Country hubs in French: https://www.calmido.com/be-fr/directory/belgique and https://www.calmido.com/lu-fr/directory/luxembourg - Spam protection in the app: https://www.calmido.com/nl-en/product · https://www.calmido.com/be-fr/product - Trust and how we verify: https://www.calmido.com/nl-en/trust · https://www.calmido.com/be-fr/trust - About: https://www.calmido.com/nl-en/about · FAQ: https://www.calmido.com/nl-en/faq - Scam guides: https://www.calmido.com/nl-nl/scams · https://www.calmido.com/be-fr/scams ## App - Calmido Phone for Android: https://play.google.com/store/apps/details?id=com.calmido.app - Calmido Phone for iPhone (beta, via TestFlight): https://testflight.apple.com/join/7vuEwaDj - Download page: https://www.calmido.com/nl-en/download · https://www.calmido.com/be-fr/download