# freeiplookupapi > freeiplookupapi resolves an IP address to basic geolocation data over a simple JSON REST API. Authenticate every request with your API key via the `apikey` query parameter or request header. Base URL: https://api.freeiplookupapi.com ## Documentation - [Introduction](https://freeiplookupapi.com/docs): freeiplookupapi.com uses API keys to allow access to the API. - [Info Endpoint](https://freeiplookupapi.com/docs/info): Checks the provided ip address (both v4 & v6 formats) and returns all available information. - [MCP Server](https://freeiplookupapi.com/docs/mcp): Connect AI agents to the freeiplookupapi API through our hosted MCP (Model Context Protocol) server. - [Status Endpoint](https://freeiplookupapi.com/docs/status): Returns your current quota - [Request Status Codes](https://freeiplookupapi.com/docs/status-codes): For all requests, we will return an HTTP status code that indicates a success or the problem that has led to the failure. ## API Reference - [OpenAPI 3.1 specification](https://freeiplookupapi.com/docs/openapi.yaml): Machine-readable spec for every API endpoint, parameters and responses. - [Full documentation as markdown](https://freeiplookupapi.com/docs/llms-full.txt): All documentation pages concatenated as plain markdown. ## Optional - [Pricing & plans](https://freeiplookupapi.com/#pricing)