How to integrate Devin MCP with Atomic Agent

Connect Atomic Agent to Devin MCP. Summarize codebase structure for devin-ai/devin, list all open pull requests for a repo, and more using natural language, with authentication handled for you.

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Devin MCP is an AI-powered integration for accessing and analyzing GitHub repositories and documentation. It enables secure, automated codebase intelligence, even for private repos.

23 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 Devin.

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

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How Atomic Agent connects to Devin

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

The Devin MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Devin account. It provides structured and secure access to your repository documentation and Devin workflows, so your agent can explore codebases, generate wikis, coordinate sessions, review code, and manage automations on your behalf.

  • Repository research and documentation: Have your agent list indexed repositories, generate codebase wikis, browse documentation topics and content, or ask questions grounded in a repository.
  • Devin session coordination: Direct your agent to create and search sessions, interact with active work, inspect session events, and wait for multiple sessions to finish.
  • Code reviews and security scans: Instruct your agent to trigger reviews, check review status and findings, and manage code security scans.
  • Automations and team knowledge: Let the agent manage Devin automations, playbooks, schedules, knowledge notes, suggestions, and on-call workflows.
  • Integrations and organization settings: Have your agent list users and integrations, manage MCP server installations and billing tags, or find specific Devin settings.

Use Devin from Atomic Agent

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

Ask wiki question

Ask any question about a GitHub repository's codebase and get an AI-powered answer grounded in its DeepWiki.

Devin automation manage

Manage Devin automations.

Devin billing tag manage

Manage Devin billing tags (groupings of Devin sessions for usage tracking) with a single action-based tool: list/get/create tags, assign sessions one at a time or in bulk (up to 500 per call, sent in sequential batches of 100), and read the billing tags of up to 100 sessions at once ('get_session_tags').

Devin blueprint test

Test a candidate blueprint YAML in an authoring VM: start → run initialize → fix → run initialize again (clean VM) → run maintenance → then persist with update_environment_config.

Devin code scan manage

Manage Devin code scans (sometimes referred to as "security scans" or "Devin Security Swarm").

Devin find setting

Find a Devin webapp setting and get a deep-link URL to it.

Devin knowledge manage

Manage Devin knowledge notes and suggestions via a single action-based tool.

Devin list integrations

List native integrations and MCP servers for the organization, with status and settings/install URLs.

Devin mcp server manage

Manage MCP server installations for the organization: install (from the marketplace or custom), update, delete, enable, or disable.

Devin oncall manage

Manage Devin Oncall.

Devin playbook manage

Manage Devin playbooks with a single action-based tool.

Devin review manage

Trigger a Devin Review for a pull/merge request, fetch the latest review status for one, or fetch a completed review's findings.

Devin schedule manage

Manage scheduled Devin sessions (deprecated in favor of Automations).

Devin session create

Create one or more child Devin sessions via the v3 REST API.

Devin session events

Inspect events within a Devin session — list summaries, fetch full details, or search.

Devin session gather

Wait for multiple Devin sessions to reach a settled state before returning.

Devin session interact

Consolidated tool for all interactions with a single Devin session.

Devin session search

Search and filter Devin sessions.

Devin user list

List the current organization's users, one membership kind per call.

Generate wiki

Generate a codebase wiki for a repository.

List wiki repos

List the repositories that have a DeepWiki index, i.

Read wiki contents

View documentation about a GitHub repository.

Read wiki structure

Get a list of documentation topics for a GitHub repository.

FAQ

Frequently asked questions

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

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

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