Pydantic Logfire
Personal plan (free forever): 10M logs, spans or metrics a month, 3 projects.
Dev Tools
What you get
Observability for apps and AI agents: 10 million logs, spans or metrics a month across 3 projects, kept 30 days.
How to get it
Choose Start Free on pydantic.dev/pricing.
What it requires
No credit card required.
The catch
Ingestion pauses at the 10M cap, and there is one seat plus two read-only guests.
From the official page · checked Oct 22, 2026