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railway-domain

Add, view, and remove Railway service domains using the Railway CLI.

30.5k|3.5k|Updated Jul 4, 2025
Search Tags:#CLI#custom domain#dns#Deployment#railway#domain#Networking
One-click install
npx skills add https://github.com/davila7/claude-code-templates --skill railway-domain
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: railway-domain
Source: https://github.com/davila7/claude-code-templates/tree/main/cli-tool/components/skills/railway/domain
Command: npx skills add https://github.com/davila7/claude-code-templates --skill railway-domain

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires railway-cli.

What problem does it solve?

Managing domains for Railway services requires knowing the correct CLI commands, DNS record configuration, and GraphQL queries, which is error-prone when done manually.

Core Features & Use Cases

  • Generate Railway Domains: Create a Railway-provided domain for a service with a single CLI command, with JSON output for automation.
  • Add Custom Domains: Register a custom domain and receive the required DNS records (CNAME) to configure at your DNS provider.
  • Inspect and Remove Domains: Query configured service and custom domains via the environment config, and remove domains through the railway-environment skill.
  • Use Case: You just deployed a backend service on Railway and need a public URL. Use this Skill to generate a Railway domain, then later attach api.example.com and get the exact DNS records to add at your registrar.

Quick Start

Ask the AI to generate a Railway domain for your deployed service and show you the resulting URL.

Frequently Asked Questions about railway-domain

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I add a domain to a Railway service?▼

Run railway domain --json to generate a Railway-provided domain, or railway domain example.com --json for a custom domain. Use the --service flag to target a specific service when none is linked.

How do I set up a custom domain on Railway?▼

Run railway domain with your custom domain and --json output. The response returns the required DNS records, typically a CNAME, which you add at your DNS provider to complete the setup.

How many Railway domains can a service have?▼

Each Railway service can have a maximum of one Railway-provided domain. Attempting to generate a second one returns an error stating the service already has a railway-provided domain.

Why does railway domain fail with no deployment error?▼

Domain generation requires the service to have an active deployment. Deploy the service first with railway up, then run the domain command to generate or attach a domain.

How do I remove a domain from a Railway service?▼

Domain removal is handled through the railway-environment skill by setting the domain entry to null under the service networking config, then applying and committing the environment change.

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