# TruLens (Open Source)

**Canonical:** https://apis.io/apis/truera/trulens/  
**Provider:** TruEra (Snowflake) — https://apis.io/providers/truera/  
**Documentation:** https://www.trulens.org/

TruLens (Open Source) is published by [TruEra (Snowflake)](https://apis.io/providers/truera/) on the [APIs.io](https://apis.io/) network. Tagged areas include Open-Source, Python, LLM Eval, and Tracing. The published artifact set on APIs.io includes API documentation.

Open-source Python library for evaluating and tracking LLM applications. Provides feedback functions (groundedness, relevance, etc.), tracing, and a local dashboard. Distributed via PyPI under Apache 2.0; runs in-process and integrates with LangChain and LlamaIndex.

## Machine-readable artifacts (3)

- **Documentation** — https://www.trulens.org/
- **GitHub** — https://github.com/truera/trulens
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/truera/refs/heads/main/apis.yml

## Tags

Open-Source, Python, LLM Eval, Tracing

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/truera/trulens/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/truera/.