08.28.2025: New arize-phoenix-client Package 📦

We’re excited to announce the release of arize-phoenix-client, a lightweight, fully-featured package for interacting with Phoenix. With this client, you no longer need to install arize-phoenix unless running a local instance.

Key Features:

• Datasets: Create and manage datasets for experimentation.

• Experiments: Run experiments and evaluate model performance.

• Prompts: Manage prompt templates and their versions.

• Spans: Access and analyze traces and spans.

• Annotations: Add annotations, evaluations, and feedback to spans.

• Projects: Organize your work with project management tools.

This release provides first-class support for interacting with a Phoenix instance while keeping your environment light and simple.

Documentation

Phoenix Client Reference — Phoenix Client Reference 1.16.0 documentationarize-phoenix.readthedocs.io