Pydantic Logfire

OpenTelemetry-based observability for AI agents and ordinary services, queryable with SQL, from the Pydantic maintainers

By Pydantic Services Inc. · pydantic.dev/logfire

Package download activity

Each package is shown on its own; packages that can be installed together are never added up. Week 2026-W40 (2026-09-28 to 2026-10-04).

npm@pydantic/logfire-node · headline (ranked)

31,486 downloads in the week, -59.7% vs prior week · rank 16 on npm

2026-W29 to 2026-W40, 12 weeks; min 13,398, max 138,344

Reproduce this number (npm API) · registry metadata (mapping checked 2026-10-07)

PyPIlogfire · headline (ranked)

3,488,038 downloads in the week, +14.3% vs prior week · rank 5 on PyPI

2026-W29 to 2026-W40, 12 weeks; min 2,808,422, max 5,939,178

bundledBundled by pydantic-ai (via pydantic-ai-slim[logfire]): installed automatically as a required dependency, so these downloads include installs of pydantic-ai. source

Reproduce this number (ClickHouse SQL) · registry metadata (mapping checked 2026-10-07)

Packages not measured

The vendor's docs name these packages, but their registry metadata does not link the vendor's domain or GitHub organisation, so under our mapping rule they are not counted. No download number is shown for them.

PyPI logfire-sdk: registry links do not point to the vendor's domain or GitHub org (registry metadata, checked 2026-10-07)

GitHub stars

pydantic/logfire: 4,509 stars (rank 23). Stars are a point-in-time count of a repository's bookmarks, not people using the tool.

Series starts 2026-W40 (4,509).

Reproduce (GitHub API) · repository link source

Facts

Facts for Pydantic Logfire
Categories	Tracing & observability, Evaluation, Gateways with observability
Status	Generally available
Licence	Proprietary	source, checked 2026-10-07
Self-host	Enterprise only	source, checked 2026-10-07
OpenTelemetry	Native (OTLP)	source, checked 2026-10-07
Pricing model	usage
Entry price	$49/mo; Team plan, 5 seats, 10M records included then $2 per million; Personal plan is free forever (10M records/month, hard-capped); Growth $249/month.	source, checked 2026-10-07
Free tier	Yes
Measurability	Measured (mapped SDK packages)

Facts last verified 2026-10-07 on first-party pages. Prices as published, taxes excluded; non-USD prices are not converted.

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Spotted an outdated fact? The methodology page explains how facts are checked; corrections are applied at the next weekly build.