How to integrate Modem MCP with Atomic Agent

Connect Atomic Agent to Modem MCP. Search customer feedback for refund complaints, start durable agent conversation about onboarding, and more using natural language, with authentication handled for you.

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Modem MCP is a platform for organizing and indexing customer feedback, topics, people, and companies. It synthesizes feedback and provides durable agent conversation support for structured insights.

15 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 Modem.

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

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How Atomic Agent connects to Modem

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

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

Use Modem from Atomic Agent

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

Add people to company

Associate one or more people with a company.

Bulk update topics

Update multiple topics at once (e.

Create companies

Create one or more companies in the organization.

Merge companies

Merge one or more source companies into a target company.

Merge people

Merge one or more source people into a target person.

Merge topics

Merge one or more source topics into a target topic.

Modem agent cancel run

Cooperatively cancel one exact durable Modem agent run.

Modem agent get run

Get the current status and terminal result of a durable Modem agent run.

Modem agent invoke

Start a durable Modem agent conversation.

Modem agent send message

Start a durable follow-up turn in an existing MCP conversation.

Modem skills

Skills that teach you how to use THIS Modem MCP server's tools.

Search modem

Answer a natural-language question about your Modem data and get matching rows back.

Update companies

Update fields on one or more existing companies.

Update people

Update fields on one or more existing people.

Update topic

Update a single topic (priority, lifecycle state, archived status, issue type, or keywords).

FAQ

Frequently asked questions

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

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

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