The Loki MCP Server is a Go-based implementation of the Model Context Protocol (MCP) that integrates Grafana Loki for log querying. It exposes a dedicated Loki Query Tool (loki_query) which requires a LogQL query string and supports optional parameters such as URL (Loki endpoint), start and end times, a result limit, and an org identifier sent via the X-Scope-OrgID header. The server supports two communication modes: traditional MCP over stdin/stdout and an HTTP server that streams events using Server-Sent Events (SSE), enabling real-time integration with tools like n8n. In HTTP mode, endpoints include an SSE endpoint at /sse and an MCP endpoint at /mcp, with the SSE port configurable via the SSE_PORT environment variable (default 8080). Docker and Docker Compose support allow easy local deployment, including a complete Loki testing environment with Loki, Grafana, a log generator, and the Loki MCP server. The MCP server can be configured via environment variables (LOKI_URL, LOKI_ORG_ID, LOKI_USERNAME, LOKI_PASSWORD, LOKI_TOKEN) for default Loki connections, along with a security note about credentials. The project also provides a test client and integration guidance for Claude Desktop and Cursor, emphasizing a modular architecture with separate server, client, handlers, and models.