domain_check
Check domain availability for deployment on Railway.app. Validate domain names before use to ensure they're ready for your infrastructure projects.
Instructions
[API] Check if a domain is available for use
⚡️ Best for: ✓ Validating domain availability ✓ Pre-deployment checks ✓ Domain planning
→ Next steps: domain_create
→ Related: domain_list
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| domain | Yes | Domain name to check availability for |
Implementation Reference
- src/tools/domain.tool.ts:89-91 (handler)The handler function for the 'domain_check' tool. It takes a domain name and delegates to domainService.checkDomainAvailability.async ({ domain }) => { return domainService.checkDomainAvailability(domain); }
- src/tools/domain.tool.ts:86-88 (schema)Zod input schema defining the 'domain' parameter for the domain_check tool.{ domain: z.string().describe("Domain name to check availability for") },
- src/tools/domain.tool.ts:71-92 (registration)Registration of the 'domain_check' tool using createTool, including description, schema, and handler.createTool( "domain_check", formatToolDescription({ type: 'API', description: "Check if a domain is available for use", bestFor: [ "Validating domain availability", "Pre-deployment checks", "Domain planning" ], relations: { nextSteps: ["domain_create"], related: ["domain_list"] } }), { domain: z.string().describe("Domain name to check availability for") }, async ({ domain }) => { return domainService.checkDomainAvailability(domain); } ),
- Core implementation in DomainService that checks domain availability via client API and formats the response.async checkDomainAvailability(domain: string): Promise<CallToolResult> { try { const result = await this.client.domains.serviceDomainAvailable(domain); if (result.available) { return createSuccessResponse({ text: `Domain ${domain} is available`, data: result }); } else { return createSuccessResponse({ text: `Domain ${domain} is not available: ${result.message}`, data: result }); } } catch (error) { return createErrorResponse(`Error checking domain availability: ${formatError(error)}`); } }