Patronus AI

platform

closed(hosted SaaS

source

partial(patronus-py is a client wiring to the hosted API, not the engine)

client-SDKs

open(patronus-py public on GitHub, v0.1.25, but only 7 stars and wires to the hosted API)

The open-source SDK is a thin client to a closed hosted evaluation backend: the core scoring engine and the managed Lynx and Glider evaluators are proprietary and cannot be self-hosted, and no license text is displayed on the SDK repo page. This is not an open core with functionality withheld for a paid tier; it is an open periphery around a runtime that never ships, which makes the source only partial and the product source-available rather than closed.

• https://github.com/patronus-ai/patronus-py recorded 2026-06-04

  Python SDK whose remote evaluators 'run remotely on Patronus infrastructure'; v0.1.25 Jan 2026; 7 stars

• https://docs.patronus.ai/docs recorded 2026-06-04

  hosted platform: built-in Lynx/Glider evaluators, experiments, production monitoring, SDK access to cloud service

• https://raw.githubusercontent.com/patronus-ai/patronus-py/main/README.md recorded 2026-08-13

  SDK README's own example carries the comment '# This evaluator runs remotely on Patronus infrastructure.' - the published code wires to the hosted engine rather than being it.

• https://api.github.com/repos/patronus-ai/patronus-py recorded 2026-08-13

  stargazers_count = 8, pushed_at 2026-01-09, and the repo's `license` field is null - GitHub detects no license file on the SDK at all.

• https://docs.patronus.ai/docs recorded 2026-08-13

  An end-to-end hosted system for evaluating, monitoring and improving performance, with Lynx and Glider as in-house evaluators, experiments, real-time production monitoring and Python/TypeScript SDKs into the cloud service. No self-hostable or open-source evaluation engine is offered anywhere in it.