Pydantic Logfire MCP

Example Use Cases

• 1

  Find and summarize the most recent exceptions in a specific source file (file path + trace context) within a configurable time window.

• 2

  Run custom SQL queries against the Logfire DataFusion database to aggregate or filter traces and metrics over a recent time range.

• 3

  Direct links to view specific traces in the Logfire UI and to retrieve the OpenTelemetry schema for traces and metrics.

Description

This MCP server exposes tools for retrieving and analyzing application telemetry sent to Pydantic Logfire, including searching recent exceptions in source files, running arbitrary SQL queries against the Logfire database, and generating UI links to traces. It helps agents explore distributed traces, surface exception context (function, line, attributes, trace id), and access the Logfire schema for deeper analysis. The server can be self-hosted via uvx and requires a project-specific read token to access data.