How to integrate Exist MCP with Atomic Agent

Connect Atomic Agent to Exist MCP. Show your top positive habits last month, list strongest correlations in your data, and more using natural language, with authentication handled for you.

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Exist is a personal analytics app that combines data from multiple services to help you understand and improve your life. It reveals trends and insights about your habits, mood, and productivity to drive self-improvement.

12 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 Exist.

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 Exist account. See the Atomic Agent documentation for installation instructions.

Also integrate Exist with

How Atomic Agent connects to Exist

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 Exist 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 Exist. It searches Composio for the right tool.
  4. On first use, open the sign-in link returned in the chat. Connect your Exist 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 Exist MCP server, and what's possible with it?

The Exist MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Exist account. It provides structured and secure access to your personal analytics data, so your agent can perform actions like analyzing correlations, retrieving user attributes, exploring supported metrics, and inspecting your profile on your behalf.

  • Personal profile access and insights: Instantly retrieve and review your Exist user profile, including preferences and account settings, to keep your agent aware of your context.
  • Attribute exploration and discovery: Browse and list all available attribute templates or user attributes, making it easy to understand what metrics you can track, analyze, or visualize.
  • Correlation analysis: Ask your agent to fetch and explore recent correlations between tracked attributes—like how weather or sleep might relate to your mood or productivity.
  • Custom analytics setup: Let your agent help you discover and understand supported attribute templates before you start tracking or updating new data points.

Use Exist from Atomic Agent

With your account connected, ask Atomic Agent to work with Exist 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 Exist action and event your agent gets out of the box.

Acquire Attribute Ownership

Tool to acquire ownership of attributes for the authenticated user.

Get Attributes With Values

Tool to retrieve attributes with their current values for the authenticated user.

Get Attribute Templates

Tool to retrieve a paged list of supported attribute templates.

Get Averages

Tool to retrieve the most recent average values for each tracked attribute, with one set per week.

Get Correlations

Retrieve a paginated list of correlations discovered between tracked attributes in the last week.

Get Insights

Tool to retrieve automatically-generated insights about patterns in tracked data for the authenticated user.

Get Owned Attributes

Tool to retrieve attributes owned by your service for the authenticated user.

Get User Attributes

Tool to retrieve a paged list of the user's attributes without values.

Get User Profile

Tool to retrieve the authenticated user's profile details and preferences.

Increment Attribute Values

Tool to increment attribute values by a delta amount rather than setting totals.

Exist OAuth2 Authorize

Constructs an OAuth2 authorization URL for Exist.

Release Attribute Ownership

Tool to release ownership of attributes for the authenticated user.

FAQ

Frequently asked questions

With a standalone Exist MCP server, the agents and LLMs can only access a fixed set of Exist tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Exist 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 Exist tools.

Yes, absolutely. You can configure which Exist 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 Exist data and credentials are handled as safely as possible.

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