> ## Documentation Index
> Fetch the complete documentation index at: https://braintrust.dev/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# TypeScript SDK: related packages

> Adjacent npm packages that work alongside the Braintrust TypeScript SDK.

## Autoevals

Pre-built scoring functions for evaluating LLM outputs, including factuality, similarity, and answer relevance scorers. Use it alongside the main SDK to score evaluations without writing your own scorers from scratch.

[API reference](/sdks/typescript/related/autoevals) · npm: [`autoevals`](https://www.npmjs.com/package/autoevals)

## LangChain

Braintrust's LangChain.js integration. Adds Braintrust tracing to LangChain workflows so chains, agents, and runnable steps appear as spans in your project.

[API reference](/sdks/typescript/related/langchain) · npm: [`@braintrust/langchain-js`](https://www.npmjs.com/package/@braintrust/langchain-js)

## OpenAI Agents

Braintrust's integration for the OpenAI Agents.js framework. Traces agent runs, tool calls, and handoffs, with no manual instrumentation required.

[API reference](/sdks/typescript/related/openai-agents) · npm: [`@braintrust/openai-agents`](https://www.npmjs.com/package/@braintrust/openai-agents)

## OpenTelemetry

Braintrust's OpenTelemetry JS integration. Exports OTel-compatible traces from your application to Braintrust, useful when your app is already instrumented with OpenTelemetry.

[API reference](/sdks/typescript/related/otel) · npm: [`@braintrust/otel`](https://www.npmjs.com/package/@braintrust/otel)