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OpikPydantic Logfire
Free

The open-source platform is free to self-host.

 Freemium

Free for 10 million spans, logs and metrics per month, no card required; paid plans above…

Web, Self-hosted Web
  • Tracing, automated evaluations and dashboards together
  • Covers RAG systems and agent workflows
  • Traces LLM calls alongside API and database activity
  • Built on OpenTelemetry with SQL querying
  • Self-hosting means running several services yourself
  • Contributors must sign a CLA
  • Primarily a hosted service requiring an account
  • Self-hosting is offered as an option rather than the default
Self-hosted Web application, Hosted service
Open source Closed source
License not stated License not stated
Not stated if an account is needed Account needed
Not stated if it works offline Needs internet

Checked September 26, 2026

Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.