Directory / Logfire
Logfire
Verified
Pydantic observability platform for application and agent traces.
Logfire is Pydantic's OpenTelemetry-based observability product for application tracing and LLM or agent spans. Current documentation describes hosted and self-hosted use. Pydantic AI is a related SDK with a different job.
- Model support
- Multi-model
- Deployment
- Cloud, Self-hosted
- Open source
- No
- License
- Proprietary product; OTEL-based
- Pricing model
- Mixed
- Added / updated
- 19 Aug 2026 / 19 Aug 2026
Assessment
Logfire collects application and agent traces for stacks already using Pydantic instrumentation. Self-hosting terms should be checked in current documentation before deployment.
Strengths
- OTEL-shaped tracing from the Pydantic team.
- Traces whole applications alongside LLM spans.
- Natural pair with Pydantic AI.
Limitations
- Not an eval framework by itself.
- No factory orchestration.