# numlookupapi.com > Our phone number lookup & validation API is the perfect tool to automate fraud protection & clean your database. - Website: https://numlookupapi.com/ - Documentation: https://numlookupapi.com/docs/ - OpenAPI spec: https://numlookupapi.com/docs/openapi.yaml - Docs llms.txt: https://numlookupapi.com/docs/llms.txt - Full marketing content: https://numlookupapi.com/llms-full.txt ## Docs - [API Documentation](https://numlookupapi.com/docs/): Endpoints, authentication, request/response formats and SDKs. - [OpenAPI 3.1 spec](https://numlookupapi.com/docs/openapi.yaml): Machine-readable definition of every endpoint. - [MCP server](https://api.numlookupapi.com/mcp): Hosted Model Context Protocol endpoint — AI agents can call the API as native tools (streamable HTTP, `apikey` header). ## Pricing - [Pricing & Plans | Numlookupapi.com](https://numlookupapi.com/pricing/): We believe in fair & transparent pricing. All plans can be upgraded or canceled at any time. ## Guides & tutorials - [Popular Numbers | Numlookupapi.com](https://numlookupapi.com/popular-numbers/): A few popular numbers that have been validated with numlookupapi.com ## Product & features - [MCP Server for AI Agents | numlookupapi.com](https://numlookupapi.com/mcp/): Connect Claude, Cursor and other AI agents directly to the numlookupapi API through our hosted MCP (Model Context Protocol) server. ## Company - [Contact us | Numlookupapi.com](https://numlookupapi.com/contact/) - [Privacy Policy | Numlookupapi.com](https://numlookupapi.com/imprint/) - [Privacy Policy | Numlookupapi.com](https://numlookupapi.com/privacy-policy/) - [Terms Of Service | Numlookupapi.com](https://numlookupapi.com/terms-of-service/)