# Braintrust

```json
{
  "name": "Braintrust",
  "slug": "braintrust",
  "url": "https://composio.dev/toolkits/braintrust",
  "markdown_url": "https://composio.dev/toolkits/braintrust.md",
  "logo_url": "https://logos.composio.dev/api/braintrust",
  "categories": [
    "ai & machine learning"
  ],
  "is_composio_managed": false,
  "updated_at": "2026-08-13T07:38:32.437Z"
}
```

![Braintrust logo](https://logos.composio.dev/api/braintrust)

## Description

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Braintrust MCP or direct API to manage prompts, inspect experiments, query evaluations, and review production traces through natural language.

## Summary

Braintrust is an AI engineering platform for prompts, datasets, experiments, evaluations, observability, and production AI apps.
Use it to ship better AI systems with faster debugging, clearer evals, and tighter feedback loops.

## Categories

- ai & machine learning

## Toolkit Details

- Tools: 17

## Images

- Logo: https://logos.composio.dev/api/braintrust

## Authentication

- **Api Key**
  - Type: `api_key`
  - Description: Api Key authentication for Braintrust.
  - Setup:
    - Configure Api Key credentials for Braintrust.
    - Use the credentials when creating an auth config in Composio.

## Suggested Prompts

- Compare failed evaluations across recent experiments
- Create dataset from production failure logs
- Summarize latency spikes in Braintrust traces

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `BRAINTRUST_CREATE_DATASET` | Create Dataset | Create a named dataset under a Braintrust project, or return the existing dataset unchanged when its name already exists in that project. |
| `BRAINTRUST_CREATE_EXPERIMENT` | Create Experiment | Create an experiment under a Braintrust project. When its name already exists, Braintrust returns the existing experiment unchanged unless ensure_new is true, which creates an experiment with a unique name. |
| `BRAINTRUST_CREATE_PROJECT` | Create Project | Create a Braintrust project, or return the existing project unchanged when its name already exists. |
| `BRAINTRUST_CREATE_PROMPT` | Create Prompt | Upsert a versioned prompt configuration under a Braintrust project without invoking it. The same project and slug reuse the prompt ID but create a new version that replaces the stored prompt configuration with the submitted configuration. MCP attachments and tool-function bindings are unsupported. |
| `BRAINTRUST_DELETE_PROJECT` | Delete Project | Soft-delete a Braintrust project and return its deletion state. |
| `BRAINTRUST_DELETE_RESOURCE` | Delete Experiment, Dataset, or Prompt | Delete one Braintrust experiment, dataset, or prompt by UUID for explicit lifecycle cleanup. |
| `BRAINTRUST_FETCH_EVENTS` | Fetch Events | Fetch one newest-to-oldest page of project log, experiment, or dataset events. |
| `BRAINTRUST_GET_RESOURCE` | Get Braintrust Resource | Get one project, experiment, dataset, prompt, or function by UUID. |
| `BRAINTRUST_INSERT_DATASET_EVENTS` | Insert Dataset Events | Upsert a batch of examples into an existing Braintrust dataset. New or omitted IDs insert events; an existing supplied ID replaces that event's current values. |
| `BRAINTRUST_INSERT_EXPERIMENT_EVENTS` | Insert Experiment Events | Upsert a batch of result events into an existing Braintrust experiment. New or omitted IDs insert events; an existing supplied ID replaces that event's current values. |
| `BRAINTRUST_LIST_RESOURCES` | List Braintrust Resources | List and filter one page of projects, experiments, datasets, prompts, or functions visible to the connected Braintrust API key. |
| `BRAINTRUST_QUERY_DATA` | Query Braintrust Data | Run one bounded synchronous read-only BTQL query over Braintrust project logs, an experiment, or a dataset. The first-page query must end with a positive LIMIT; continue later pages by passing the returned next_cursor unchanged. |
| `BRAINTRUST_SUMMARIZE_RESOURCE` | Summarize Experiment or Dataset | Return metadata and optional aggregate summaries for one Braintrust experiment or dataset. |
| `BRAINTRUST_UPDATE_DATASET` | Update Dataset | Update the name, description, tags, or metadata of a Braintrust dataset. At least one non-null mutable field is required. |
| `BRAINTRUST_UPDATE_EXPERIMENT` | Update Experiment | Update selected metadata and linkage fields on a Braintrust experiment. At least one non-null mutable field is required. |
| `BRAINTRUST_UPDATE_PROJECT` | Update Project | Update selected fields of a Braintrust project. At least one non-null mutable field is required: name, description, or settings. |
| `BRAINTRUST_UPDATE_PROMPT` | Update Prompt | Update a Braintrust prompt's metadata or configuration without invoking it. At least one non-null mutable field is required. |

## Supported Triggers

None listed.

## Installation and MCP Setup

### Path 1: SDK Installation

#### Path 1, Step 1: Install Composio

Install the Composio SDK
```python
pip install composio_openai
```

```typescript
npm install @composio/openai
```

#### Path 1, Step 2: Initialize Composio and Create Tool Router Session

Import and initialize Composio client, then create a Tool Router session
```python
from openai import OpenAI
from composio import Composio
from composio_openai import OpenAIResponsesProvider

composio = Composio(provider=OpenAIResponsesProvider())
openai = OpenAI()
session = composio.create(user_id='your-user-id')
```

```typescript
import OpenAI from 'openai';
import { Composio } from '@composio/core';
import { OpenAIResponsesProvider } from '@composio/openai';

const composio = new Composio({
  provider: new OpenAIResponsesProvider(),
});
const openai = new OpenAI({});
const session = await composio.create('your-user-id');
```

#### Path 1, Step 3: Execute Braintrust Tools via Tool Router with Your Agent

Get tools from Tool Router session and execute Braintrust actions with your Agent
```python
tools = session.tools
response = openai.responses.create(
  model='gpt-4.1',
  tools=tools,
  input=[{
    'role': 'user',
    'content': 'List recent Braintrust experiments and summarize failed evaluations'
  }]
)
result = composio.provider.handle_tool_calls(
  response=response,
  user_id='your-user-id'
)
print(result)
```

```typescript
const tools = session.tools;
const response = await openai.responses.create({
  model: 'gpt-4.1',
  tools: tools,
  input: [{
    role: 'user',
    content: 'List recent Braintrust experiments and summarize failed evaluations'
  }],
});
const result = await composio.provider.handleToolCalls(
  'your-user-id',
  response.output
);
console.log(result);
```

### Path 2: MCP Server Setup

#### Path 2, Step 1: Install Composio

Install the Composio SDK for Python or TypeScript
```python
pip install composio claude-agent-sdk
```

```typescript
npm install @composio/core ai @ai-sdk/openai @ai-sdk/mcp
```

#### Path 2, Step 2: Initialize Client and Create Tool Router Session

Import and initialize the Composio client, then create a Tool Router session for Braintrust
```python
from composio import Composio
from claude_agent_sdk import ClaudeSDKClient, ClaudeAgentOptions

composio = Composio(api_key='your-composio-api-key')
session = composio.create(user_id='your-user-id')
url = session.mcp.url
```

```typescript
import { Composio } from '@composio/core';

const composio = new Composio({ apiKey: 'your-api-key' });
const session = await composio.create('your-user-id');
console.log(`Tool Router session created: ${session.mcp.url}`);
```

#### Path 2, Step 3: Connect to AI Agent

Use the MCP server with your AI agent (Anthropic Claude or Mastra)
```python
import asyncio

options = ClaudeAgentOptions(
    permission_mode='bypassPermissions',
    mcp_servers={
        'tool_router': {
            'type': 'http',
            'url': url,
            'headers': {
                'x-api-key': 'your-composio-api-key'
            }
        }
    },
    system_prompt='You are a helpful assistant with access to Braintrust tools.',
    max_turns=10
)

async def main():
    async with ClaudeSDKClient(options=options) as client:
        await client.query('List recent Braintrust experiments and summarize failed evaluations')
        async for message in client.receive_response():
            if hasattr(message, 'content'):
                for block in message.content:
                    if hasattr(block, 'text'):
                        print(block.text)

asyncio.run(main())
```

```typescript
import { openai } from '@ai-sdk/openai';
import { experimental_createMCPClient as createMCPClient } from '@ai-sdk/mcp';
import { generateText } from 'ai';

const client = await createMCPClient({
  transport: {
    type: 'http',
    url: session.mcp.url,
    headers: {
      'x-api-key': 'your-composio-api-key',
    },
  },
});

const tools = await client.tools();
const { text } = await generateText({
  model: openai('gpt-4o'),
  tools,
  messages: [{
    role: 'user',
    content: 'List recent Braintrust experiments and summarize failed evaluations'
  }],
  maxSteps: 5,
});

console.log(`Agent: ${text}`);
```

## Why Use Composio?

### 1. AI Native Braintrust Integration

- Supports both Braintrust MCP and direct API based integrations
- Structured, LLM-friendly schemas for reliable prompt, dataset, and experiment workflows
- Rich coverage for reading, writing, and querying your Braintrust AI engineering data

### 2. Managed Auth

- Secure API key handling without hard-coding Braintrust credentials in your agent code
- Central place to manage, scope, and revoke Braintrust access
- Per user and per environment credentials, so staging and production stay cleanly separated

### 3. Agent Optimized Design

- Tools are tuned for language models, so agents can inspect experiments and evaluations with fewer broken calls
- Clear tool schemas help agents understand Braintrust resources like prompts, datasets, logs, and traces
- Comprehensive execution logs so you always know what ran, when, and on whose behalf

### 4. Enterprise Grade Security

- Fine-grained RBAC so you control which agents and users can access Braintrust
- Scoped, least privilege access to Braintrust projects, experiments, and observability data
- Full audit trail of agent actions to support review, debugging, and compliance

## Use Braintrust with any AI Agent Framework

Choose a framework you want to connect Braintrust with:

- [ChatGPT Work](https://composio.dev/toolkits/braintrust/framework/chatgpt)
- [Claude Cowork](https://composio.dev/toolkits/braintrust/framework/claude-cowork)
- [Hermes](https://composio.dev/toolkits/braintrust/framework/hermes-agent)

## Related Toolkits

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- [All images ai](https://composio.dev/toolkits/all_images_ai) - All-Images.ai is an AI-powered image generation and management platform. It helps you create, search, and organize images effortlessly with advanced AI capabilities.
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## Frequently Asked Questions

### Do I need my own developer credentials to use Braintrust with Composio?

Yes, Braintrust requires you to configure your own API key. Once set up, Composio handles secure credential storage and API request handling for you.

### Can I use multiple toolkits together?

Yes! Composio's Tool Router enables agents to use multiple toolkits. [Learn more](https://docs.composio.dev/tool-router/overview).

### Is Composio secure?

Composio is SOC 2 and ISO 27001 compliant with all data encrypted in transit and at rest. [Learn more](https://trust.composio.dev).

### What if the API changes?

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

---
[See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)