domain

Domain Management Add, view, or remove domains for Railway services. When to Use User asks to "add a domain", "generate a domain", "get a URL" User wants to add a custom domain User asks "what's the URL for my service" User wants to remove a domain Add Railway Domain Generate a railway-provided domain (max 1 per service): railway domain --json For a specific service: railway domain --json --service backend Response Returns the generated domain URL. Service must have a deployment. Add Custom Domain railway domain example.com --json Response Returns required DNS records: { "domain": "example.com", "dnsRecords": [ { "type": "CNAME", "host": "@", "value": "..." } ] } Tell user to add these records to their DNS provider. Read Current Domains Use environment skill to see configured domains, or query directly: query domains($envId: String!) { environment(id: $envId) { config(decryptVariables: false) } } Domains are in config.services..networking: serviceDomains - Railway-provided domains customDomains - User-provided domains Remove Domain Use environment skill to remove domains: Remove custom domain { "services": { "": { "networking": { "customDomains": { "": null } } } } } Remove railway domain { "services": { "": { "networking": { "serviceDomains": { "": null } } } } } Then use environment skill to apply and commit the change. CLI Options Flag Description [DOMAIN] Custom domain to add (omit for railway domain) -p, --port Port to connect -s, --service Target service (defaults to linked) --json JSON output Composability Read domains: Use environment skill Remove domains: Use environment skill Apply removal: Use environment skill Check service: Use service skill Error Handling No Service Linked No service linked. Use --service flag or run railway service to select one. Domain Already Exists Service already has a railway-provided domain. Maximum 1 per service. No Deployment Service has no deployment. Deploy first with railway up. Invalid Domain Invalid domain format. Use a valid domain like "example.com" or "api.example.com". Weekly Installs766Repositoryrailwayapp/rail…y-skillsGitHub Stars194First SeenJan 20, 2026Security AuditsGen Agent Trust HubFailSocketPassSnykPassInstalled onopencode642codex630gemini-cli602github-copilot576claude-code568amp530