How to integrate BrainGraph MCP with Atomic Agent

Connect Atomic Agent to BrainGraph MCP. Search graph for onboarding process docs, summarize meeting recordings from last week, and more using natural language, with authentication handled for you.

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Api Key

BrainGraph builds a searchable knowledge graph from documents, recordings, web pages, and other source material. It provides structured, grounded knowledge to improve AI reasoning and retrieval.

10 Tools

Introduction

Atomic Agent is an open-source AI agent that runs on your machine and supports local models through llama.cpp. Connect it to 1,500+ apps through Composio, including BrainGraph.

This guide uses Atomic Agent's built-in Composio integration. You need Atomic Agent v0.5.6 or later, your own Composio API key, and a BrainGraph account. See the Atomic Agent documentation for installation instructions.

Also integrate BrainGraph with

How Atomic Agent connects to BrainGraph

Atomic Agent connects to Composio's Tool Router over Streamable HTTP MCP. It discovers the tools needed for your request, and Composio handles account authentication.

Execution and account-connection tools follow Atomic Agent's configured approval policy. Review any approval prompt before allowing an action on your connected account.

Connect BrainGraph to Atomic Agent

  1. Sign up or sign in to the Composio dashboard. Copy your API key.
  2. In Atomic Agent, open the Integrations tab and select Composio. Select API key, press e, paste the key, and press Enter. The tools become available immediately, without a restart.
  3. Ask Atomic Agent to do something in BrainGraph. It searches Composio for the right tool.
  4. On first use, open the sign-in link returned in the chat. Connect your BrainGraph account, then return to Atomic Agent to continue.

Headless setup

Add the following line to ~/.atomic-agent/.env, replacing YOUR_COMPOSIO_API_KEY with your key. Start Atomic Agent after saving the file.

bash
COMPOSIO_API_KEY=YOUR_COMPOSIO_API_KEY

What is the BrainGraph MCP server, and what's possible with it?

The BrainGraph MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your BrainGraph account. It provides structured and secure access so your agent can perform BrainGraph operations on your behalf.

Use BrainGraph from Atomic Agent

With your account connected, ask Atomic Agent to work with BrainGraph in natural language. You can connect more apps through the same Composio integration as you need them.

Visit the Atomic Agent website or inspect the Atomic Agent source code.

Troubleshooting

Why is my API key rejected?

Copy the key directly from the Composio dashboard. Atomic Agent requires ASCII characters because it sends the key in an HTTP header. Remove any extra characters introduced when copying.

Why are Composio tools unavailable after saving a key?

Check that you use Atomic Agent v0.5.6 or later and that Composio is enabled in your configuration. A "composio": { "enabled": false } setting disables the integration while keeping the saved key on disk.

Does Composio have a free plan?

The Hobby plan includes 100,000 tool calls per month. Composio-managed OAuth apps have a lower included allowance. See Composio pricing for the current limits that apply to your connection.

TOOLS

Supported Tools

Every BrainGraph action and event your agent gets out of the box.

Get Document Progress

Get the current transcription, processing, and analysis status for a BrainGraph document.

Ingest Web Page

Fetch readable content from a public web page and queue it for BrainGraph ingestion.

Ingest YouTube Video

Submit a YouTube video for metadata, transcript, and speaker processing; the result may only confirm that processing was queued.

List Brains

List the connected BrainGraph account's knowledge brains and identify the default brain for filtering or targeting other tools.

List Documents

List BrainGraph documents newest first, optionally filtering by filename or notes, failed ingestion status, and brain.

List Graph Patterns

Find recurring relationship-chain patterns in the connected BrainGraph knowledge graph, subject to a minimum occurrence count.

Resolve Entity

Resolve an entity name to a canonical BrainGraph record.

Search Brain

Search facts in the connected account's BrainGraph knowledge graph using a natural-language question, optionally restricted to selected brains.

Transcribe Audio

Upload an audio file or submit a direct public audio URL for diarized transcription and graph ingestion.

Upload Document

Upload a document file supplied by the caller or plain text and queue it for BrainGraph ingestion.

FAQ

Frequently asked questions

With a standalone BrainGraph MCP server, the agents and LLMs can only access a fixed set of BrainGraph tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from BrainGraph and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Atomic Agent fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right BrainGraph tools.

Yes, absolutely. You can configure which BrainGraph scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your BrainGraph data and credentials are handled as safely as possible.

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