Deploy and Host Codex Anywhere on Railway

Codex Anywhere is a persistent Railway-hosted remote machine for OpenAI Codex. Deploy the template, connect over SSH from the Codex desktop app, and keep working from the same isolated environment with persistent projects, CLI auth, Railway tooling, and Codex sessions.

About Hosting Codex Anywhere

Hosting Codex Anywhere on Railway gives you a remote development machine that is ready for Codex. The setup flow is simple: install and log in with the Railway CLI, deploy the template, create an SSH key, register the public key with Railway, and run railway ssh config to add a named OpenSSH host. From the Codex desktop app, choose the codex-anywhere SSH connection and add it as a remote project. After connecting, you can work with Codex as usual, but from an isolated Railway environment that stays available from anywhere.

Common Use Cases

Use Codex from multiple devices while staying attached to the same remote workspace
Work in an isolated cloud development environment with its own resources and persistent projects
Use the preconfigured Railway CLI and agent skills to deploy projects to Railway from Codex

Dependencies for Codex Anywhere Hosting

Railway account
Railway CLI installed locally
OpenAI Codex desktop app with SSH connection support
Local SSH key registered with Railway

Deployment Dependencies

Implementation Details

Install the Railway CLI with agent support and log in:

bash &lt;(curl -fsSL railway.com/install.sh) --agents -y
railway login

Create an SSH key and register it with Railway:

ssh-keygen -t ed25519 -C "codex-anywhere"
railway ssh keys add --key ~/.ssh/id_ed25519.pub --name codex-anywhere

Add a named SSH host for the deployed service:

railway ssh config --alias codex-anywhere --identity-file ~/.ssh/id_ed25519

The command is interactive. Choose the project and service from the Codex Anywhere deployment. Then open the Codex desktop app, go to Settings > Connections > SSH > Connect, choose codex-anywhere, log in to Codex if prompted, and add it as a remote project.

Why Deploy Codex Anywhere on Railway?

Railway is a singular platform to deploy your infrastructure stack. Railway will host your infrastructure so you don't have to deal with configuration, while allowing you to vertically and horizontally scale it.

By deploying Codex Anywhere on Railway, you are one step closer to supporting a complete full-stack application with minimal burden. Host your servers, databases, AI agents, and more on Railway.