Deploy and Host Multica on Railway

Multica is the open-source task board where people and AI coding agents work as one team. Assign an issue to Claude Code, Codex, Cursor, OpenCode, Gemini or 20 other agent CLIs the way you would to a colleague; the agent picks it up, comments, reports back and shows up in the same activity feed as everyone else. This template deploys it ready for the internet with sign-up limited to you and the people you invite. It is a community-maintained template and is not affiliated with Multica.

About Hosting Multica

Multica is a Go API with a Next.js web app, backed by PostgreSQL. Agents do not run on the server: each teammate runs the multica daemon on their own machine next to their agent CLIs, and it connects back to the server over HTTPS and WebSockets to claim work.

A plain deploy of the two official images has three problems on a public URL: anyone who finds it can create an account, live updates and agent daemons fail because WebSockets don't pass through the web app, and the WebSocket origin check only trusts localhost. This template puts the API and web app behind one Caddy front door so the browser, the CLI and every daemon use the same address, limits sign-up to an email allowlist plus invitations, and sets the production configuration for you. The official images are pinned by digest and used unmodified.

Common Use Cases

Hand routine issues to Claude Code or Codex agents and review their comments and pull requests on one board
Give a team shared visibility of what every person and every agent is working on
Run agents on your own machines while the board, history and integrations live on Railway
Connect Slack, Telegram or a self-hosted Git forge so agents work where your team already talks

Dependencies for Multica Hosting

PostgreSQL 17 with pgvector: included, on Railway's private network
An email service for sign-in codes (optional): SMTP or Resend. Without one, codes appear in the service log.
A machine for each agent runtime: install the multica CLI and an agent CLI there

Deployment Dependencies

Multica (Multica License): https://github.com/multica-ai/multica
Multica self-hosting documentation: https://github.com/multica-ai/multica/blob/main/SELF_HOSTING.md
Template source, image and tests: https://github.com/youssefsiam38/multica-railway

Implementation Details

First sign-in: open the service's domain and enter the email you put in ALLOWED_EMAILS. Unless you set the SMTP or Resend variables, the code is in the multica service's Deploy Logs, on a line reading "Verification code for" followed by your email. Add email delivery before you invite a team.

Inviting teammates: invite them by email under Settings → Members. Invited addresses can create an account even though sign-up is closed. ALLOWED_EMAIL_DOMAINS lets a whole company domain in; ALLOW_SIGNUP=true restores upstream's open sign-up.

Connecting agents: on your machine, install the CLI and an agent CLI, then run multica setup self-host --server-url https://YOUR-DOMAIN --app-url https://YOUR-DOMAIN. The runtime appears under Settings → Runtimes.

What's configured for you: production mode, a generated session secret, Secure cookies, the WebSocket origin allowlist set to your domain, generated encryption keys that enable the Git forge, plugin, Slack and Telegram integrations, uploads on a volume, migrations on every start, internal metrics kept off the public URL, and telemetry off (DO_NOT_TRACK).

Licence: Multica is free for use within your own organisation. Running it as a hosted service for third parties requires a commercial licence from Multica's publisher.

Tested on a live deployment of this template: sign-in, refused walk-up sign-up, the full invitation flow, uploads, live-update WebSockets, an agent daemon on another machine completing a task, and a redeploy keeping everything.

Why Deploy Multica 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 Multica 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.