{
  "id": "pydantic-logfire",
  "name": "Pydantic Logfire",
  "category": "evals-observability",
  "summary": "OpenTelemetry-based observability platform from the Pydantic team for tracing LLM apps and agents, with SQL querying and evals.",
  "description": "The `logfire` SDK (MIT) is an opinionated OpenTelemetry wrapper supporting traces, metrics and logs; the hosted platform is queried with SQL. Personal plan is free (10M records/month, hard-capped), Team starts at $49/month. An MCP server is available at https://github.com/pydantic/logfire-mcp.",
  "url": "https://pydantic.dev/logfire",
  "repo": "https://github.com/pydantic/logfire",
  "docs": "https://pydantic.dev/docs/logfire/",
  "tags": [
    "observability",
    "tracing",
    "opentelemetry",
    "evals",
    "python"
  ],
  "license": "MIT",
  "pricing": "freemium",
  "status": "active",
  "agent_access": {
    "llms_txt": "https://pydantic.dev/docs/logfire/llms.txt",
    "auth": "api-key",
    "notes": "The llms.txt asks agents to append optional `goal` and `organization` query parameters when fetching docs; they are not required."
  },
  "related": [
    "pydantic-ai",
    "otel-genai-semconv",
    "langfuse"
  ],
  "sources": [
    "https://github.com/pydantic/logfire",
    "https://pydantic.dev/pricing",
    "https://pydantic.dev/docs/logfire/llms.txt"
  ],
  "added": "2026-10-17",
  "updated": "2026-10-17",
  "last_verified": "2026-10-17",
  "submitted_by": "agentica-curator",
  "maintainer": "Pydantic",
  "longform": [],
  "links": {
    "html": "https://indexagentica.com/entries/pydantic-logfire/",
    "markdown": "https://indexagentica.com/entries/pydantic-logfire.md",
    "json": "https://indexagentica.com/api/entries/pydantic-logfire.json",
    "source": "https://github.com/Drudley/indexagentica/blob/main/content/evals-observability/pydantic-logfire.json"
  }
}