How to integrate Devin MCP with Hermes

Connect Hermes 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.

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Introduction

Hermes is a 24/7 autonomous agent that lives on your computer or server — it remembers what it learns and evolves as your usage grows.

This guide explains the easiest and most robust way to connect your Devin account to Hermes. You can do this through either Composio Connect CLI or Composio Connect MCP. For personal use we recommend the CLI, but you won't go wrong with MCP either.

Also integrate Devin MCP with

What is Composio Connect?

Composio Connect is a consumer offering that lets anyone plug 1,500+ applications directly into their agent harness — including Hermes. It can:

  • Search and load tools from relevant toolkits on-demand, reducing context usage.
  • Chain multiple tools to accomplish complex workflows via a remote workbench, without excessive back-and-forth with the LLM.
  • Manage app authentication end-to-end with zero manual overhead.

Integrating Devin with Hermes

Using Composio Connect CLI

1. Install the Composio CLI

Run the install script directly, or paste https://composio.dev/hermes into your Hermes chat box to have it installed for you.

bash
curl -fsSL https://composio.dev/install | bash
Hermes authenticating with Composio

2. Authenticate

Once the CLI is installed, ask Hermes to authenticate with Composio.

3. Connect to Devin

Ask your agent to connect to Devin, or simply request any Devin-related task. Hermes will prompt you to authenticate and authorize access.

4. Done. You're all set with a new Devin connection.


Using Composio Connect MCP

1. Get your MCP URL and API Key

Go to dashboard.composio.dev and copy your Connect MCP URL and API key.

Copy MCP URL and API key from Composio dashboard

2. Open the Hermes config file

bash
nano ~/.hermes/config.yaml

3. Add the Composio Connect MCP server

bash
mcp_servers:
  composio:
    url: "https://connect.composio.dev/mcp"
    headers:
      x-consumer-api-key: "YOUR_COMPOSIO_API_KEY"
    connect_timeout: 60
    timeout: 180

Save with Ctrl + O, Enter, then exit with Ctrl + X.

4. Restart your Hermes agent

Once restarted, ask your agent to connect to Devin or request any Devin-related task. It will prompt you to authenticate and authorize access.

5. Done!

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.

Way Forward

With Devin connected, Hermes can now act on your behalf whenever it detects a relevant task or you ask it to.

From here, you can extend Hermes further:

  • Connect more apps: Calendar, Slack, Notion, Linear, and hundreds of others are available through the same Composio Connect setup. Each new integration compounds what Hermes can do for you.
  • Build workflows across tools: Once multiple apps are connected, Hermes can chain actions together — turn an email into a calendar invite, a Slack message into a Linear ticket, or a meeting note into a follow-up draft.
  • Let it learn your patterns: The more you use Hermes, the better it gets at anticipating how you'd handle recurring tasks. Give it feedback on drafts and decisions, and it will adapt.

If you run into trouble or want to share what you've built, join the community or check out the Docs for deeper configuration options.

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. Hermes 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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