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The Arize Phoenix TypeScript SDKs provide packages for interacting with Phoenix, running evaluations, and sending traces.

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Packages

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@arizeai/phoenix-client

TypeScript client for the Phoenix REST API. Manage prompts, datasets, experiments, and access all Phoenix endpoints with TypeScript auto-completion.

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@arizeai/phoenix-evals

Evaluation library for LLM applications. Create custom evaluators or use pre-built ones for hallucination detection, relevance scoring, and other evaluation tasks.

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@arizeai/phoenix-otel

OpenTelemetry wrapper for sending traces to Phoenix. Simplifies setup with automatic configuration and support for instrumenting Node.js applications.

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Phoenix MCP Server

Model Context Protocol (MCP) server for Phoenix. Provides access to prompts, datasets, and experiments through the MCP standard for integration with Claude Desktop, Cursor, and other MCP-compatible tools.