Pydantic Logfire is an observability platform aimed at AI applications: instead of monitoring only the LLM calls, it traces the whole request - the model call, the agent's next step, the API request and the database query behind it - in a single timeline. SDKs cover Python, JavaScript/TypeScript and Rust, with OpenTelemetry for everything else.
Traces are queryable directly with SQL, and the product leans on Pydantic's validation pedigree for structured spans. The vendor advertises a free tier of 10M spans, logs and metrics per month with no card required - a plan claim from its pricing page.
The site lists SOC 2 Type II, HIPAA, EU data residency and PII scrubbing in the SDK among its compliance posture, and a self-hosted option; these are the vendor's own statements. A customer case study claiming a 90% debugging-time cut and $30k yearly savings is likewise vendor-published.
