How to integrate Railway MCP with Atomic Agent

Connect Atomic Agent to Railway MCP. List recent failed railway deployments, redeploy production service on railway, and more using natural language, with authentication handled for you.

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Railway is a deployment platform for building, shipping, and scaling applications with managed infrastructure. It helps teams deploy faster with instant builds, automatic scaling, and simple project operations.

18 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 Railway.

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

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How Atomic Agent connects to Railway

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

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

Use Railway from Atomic Agent

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

Create Plugin

Creates a new plugin in Railway for the specified project.

Delete Variable

Delete a Railway environment variable.

Delete Volume

Permanently delete a persistent volume and all its associated data from Railway.

Delete workspace

Delete a Railway workspace and all data associated with it.

Disconnect Discord account

Disconnects the authenticated user's Railway account from Discord.

Get Deployment Logs

Retrieve runtime logs for a deployment.

Get Environment

Get details of a specific Railway environment by its ID, including service instances and deployment information.

Get GitHub PR Info

Get information for a GitHub pull request associated with a Railway service.

Get User Kickback Earnings

Get the total kickback earnings for the authenticated Railway user.

List API Tokens

Retrieve all API tokens for the authenticated user from Railway.

List Environment Patches

Retrieve all patches for a Railway environment using the GraphQL API.

List GitHub Repos

Retrieve a list of GitHub repositories that Railway has access to.

List GitHub Writable Scopes

Retrieve the list of GitHub scopes the user has installed the installation to.

List Integration Auths

Retrieve all integration auths for the authenticated user from Railway.

List Notification Deliveries

Retrieve notification deliveries for the authenticated user.

List Railway Trusted Domains

Fetch all trusted domains for the authenticated Railway workspace.

Update Project

Update project settings and configuration on Railway.

Update Service Instance

Update build/deploy settings for a service in a specific environment on Railway.

FAQ

Frequently asked questions

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

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

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