Pydantic

license

MIT(library)

commercial

Pydantic-Logfire

source

public

core-gated

ungated(every package in pydantic/pydantic-ai is MIT with no enterprise directory

MIT type-first agent library with a commercial Logfire observability platform beside it. A full untruncated recursive tree of pydantic/pydantic-ai at main is 2,664 entries with six LICENSE files - the root MIT and per-package copies for clai, examples, pydantic_ai_slim, pydantic_evals and pydantic_graph - and no enterprise, ee, commercial or proprietary path, and pydantic.dev/pricing is headed "Pydantic Logfire Pricing" with the strapline "10M logs/spans/metrics free. Every feature. Any tier." The tiers sell observability seats, retention and gateway markup, not agent-library features. Nothing is withheld from the published library: that the vendor has a paid product at all says nothing about the core, and Logfire is a separate service sold beside it rather than a piece cut out of it.

• https://github.com/pydantic/pydantic-ai recorded 2026-06-17

  MIT, ~17.8k stars, Logfire integration

• https://api.github.com/repos/pydantic/pydantic-ai/git/trees/main?recursive=1 recorded 2026-08-11

  Full untruncated recursive tree, 2,664 entries. Six LICENSE files: root, clai/, examples/, pydantic_ai_slim/, pydantic_evals/, pydantic_graph/. No enterprise/, ee/, commercial/ or proprietary/ path anywhere.

• https://api.github.com/repos/pydantic/pydantic-ai recorded 2026-08-11

  Repo metadata: language Python, license spdx_id MIT, size 226,885 KB, 19,231 stars, default branch main.

• https://pydantic.dev/pricing recorded 2026-08-11

  Titled 'Pydantic Logfire Pricing', strapline '10M logs/spans/metrics free. Every feature. Any tier.' Tiers are Personal $0, Team $49/mo, Growth $249/mo, Enterprise custom, and they sell observability seats, projects, record volume, data retention and AI Gateway markup. Pydantic AI is listed as a separate product in the nav. No paid tier of the agent library.