X (Twitter)LinkedInGitHubDiscordYouTube

How to connect Railway MCP to Claude

Connect Claude Web, Desktop and Cowork to Railway MCP. Deploy latest commit to production service, list all services and environment variables, and more using natural language, with authentication handled for you.

Get started for freeGet a demo
Railway MCP logoRailway MCP
Oauth2

Railway MCP is Railway's hosted MCP server for managing projects, services, environments, variables, and deployments. Use it to automate deployments, inspect environments, and manage runtime configuration from AI agents.

26 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Railway account to Claude via Composio Connect, enabling it to deploy latest commit to production service, list all services and environment variables, create staging environment and deploy service, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Railway MCP with

ChatGPT WorkHermes

Connecting Railway to Claude Web, Desktop, and Cowork

1. Open Customize

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

2. Add the Composio MCP server

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

3. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

4. Connect your Railway account

Back in Claude, ask it to connect to Railway or give it any Railway-related task.

For example, ask Claude to:

  • "Deploy latest commit to production service"
  • "List all services and environment variables"
  • "Create staging environment and deploy service"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Railway account is ready to use.

What is the Railway Claude Connector, 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.

Troubleshooting

1. Why does Claude not use the Composio connector for Railway?

The connector can show as connected, but Claude must use it in each Railway conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Railway again.

2. Why does Claude show an MCP server error before Railway connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Railway.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Railway.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Railway authorization link not work?

The Composio connector is one server. Your Railway account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Railway connection.
  • Composio creates a fresh Railway authorization link.
  • Open that link in your browser and finish the Railway sign-in.

4. Why do Railway actions fail after they worked before?

The Railway connection can expire or lose permission.

  • Ask Claude to inspect the Railway connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Railway account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Railway.
  • If the action still fails with a permission error, check that the connected account has that permission in Railway itself.

5. How do I switch to a different Railway account?

Claude can manage the Railway connection for you.

  • Ask Claude to disconnect or delete the current Railway account.
  • Ask Claude to connect Railway again.
  • Open the new Composio authorization link for Railway.
  • Sign in with the other Railway account in the browser.
  • After the account connects, ask Claude to retry the Railway task.

6. Why is my Railway connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Railway connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Railway tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Railway.
TOOLS

Supported Tools

Every Railway MCP action and event your agent gets out of the box.

Accept-deploy

DESTRUCTIVE: Commits all staged changes in a Railway environment and triggers a deploy.

Create-deployment

Create a new service from a GitHub repository and trigger its first deployment.

Create-project

Create a new Railway project

Create-service

Create a new service in a project from a Docker image, or an empty service to configure later (e.

Delete-feature-flag

Delete a project-scoped feature flag.

Fetch-docs

Fetch the full markdown content of a Railway documentation page by URL or slug (e.

Generate-domain

Expose a service publicly.

Get-feature-flag

Get a Railway feature flag (Signal) by name for a project or its parent workspace scope.

Get-logs

Get logs from Railway for a deployment — covers deploy (runtime), build, and http (proxy request) contexts.

Get-service-config

Get a service's configuration in an environment: source (repo/image), build settings, deploy settings (start command, healthcheck, replicas, cron, restart policy), networking, and volume mounts.

Get-service-metrics

Get resource usage metrics (CPU, memory, disk, network) for a service, summarized as current/average/min/max over a time window.

Get-status

Get the deployment status of a Railway project environment.

List-deployments

List recent deployments for a Railway project, optionally filtered by environment, service, or status.

List-domains

List all domains (Railway-generated service domains and custom domains) for a service in an environment.

List-feature-flags

List Railway feature flags (Signals) for a project and optionally the parent workspace.

List-projects

List all Railway projects accessible to the authenticated user

List-services

List all services and environments in a Railway project

List-variables

List all environment variables for a service, fully rendered (reference variables like ${{Postgres.

List-workspaces

List the Railway workspaces the current user belongs to.

Railway-agent

Send a message to Railway's AI agent for complex infrastructure operations.

Redeploy

Re-run the most recent deployment of a service in a given environment, reusing that deployment's existing build.

Search-docs

Search the Railway documentation (docs.

Set-feature-flag

Create a project-scoped feature flag or update its default value.

Set-variables

Set one or more environment variables on a service (or environment-wide shared variables when serviceId is omitted).

Update-service

Update a service's configuration: build/start/pre-deploy commands, healthcheck, sleep mode, root directory, cron schedule, Dockerfile path, restart policy, config file path, and watch patterns.

Whoami

Get the current authenticated Railway user's profile information

FRAMEWORKS

How to build Railway MCP Agent with another framework

ChatGPT Work logo

ChatGPT Work

Use Railway MCP with ChatGPT Work

Hermes logo

Hermes

Use Railway MCP with Hermes

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. Claude Cowork 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.

Start with Railway MCP.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Railway MCP tool your agent needs.Free to start.

Start building