Unstoppable Domains MCP Server

Search, register, and manage domain names through natural conversation with AI assistants.

The Unstoppable Domains MCP server lets you access the User API through natural conversation inside ChatGPT, Claude, Cline, or any MCP-compatible agent.

Endpoint: https://api.unstoppabledomains.com/mcp/v1

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Quick Start

Claude Code

claude mcp add --transport http unstoppable-domains https://api.unstoppabledomains.com/mcp/v1

Then run /mcp inside a session and follow the OAuth flow to authenticate.

To make it available across all projects:

claude mcp add --transport http --scope user unstoppable-domains https://api.unstoppabledomains.com/mcp/v1

Claude Desktop (free plan)

Add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):

{
  "mcpServers": {
    "unstoppable-domains": {
      "command": "npx",
      "args": ["mcp-remote", "https://api.unstoppabledomains.com/mcp/v1"]
    }
  }
}

Restart Claude Desktop and look for the hammer icon in the chat input.

Claude Desktop / Claude.ai (paid plans)

1. Open Settings → Connectors → Add custom connector
2. Paste: https://api.unstoppabledomains.com/mcp/v1
3. Click Add and authorize with your Unstoppable Domains account

ChatGPT

1. Open ChatGPT Connector Settings and enable Developer Mode (beta)
2. Create a new connector with URL: https://api.unstoppabledomains.com/mcp/v1
3. Authorize with your Unstoppable Domains account

Or use the pre-built Unstoppable Domains GPT (core features, no MCP config needed).

Cline / Cursor / other MCP clients

{
  "unstoppable-domains": {
    "type": "http",
    "url": "https://api.unstoppabledomains.com/mcp/v1/"
  }
}

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What You Can Do

Ask your AI assistant things like:

• "Is 'mycoolstartup.com' available? What about .ai and .io?"
• "Register acme.com and set up Google Workspace DNS"
• "List my domains expiring in the next 90 days"
• "Create a marketplace listing for mydomain.com at $5,000"
• "Show me all DNS records for example.com and add an MX record"
• "Generate an AI landing page for parkeddomain.com"

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Authentication

OAuth 2.0 (Recommended)

When prompted by your AI tool, sign in with your Unstoppable Domains account. OAuth grants only the scopes you approve and can be revoked anytime from Account Settings.

Scope	Access
domains:search	Search domains, check availability
portfolio:read	View your domains, DNS records, offers
portfolio:write	Manage DNS, create listings, send messages
cart:read	View cart and payment methods
cart:write	Add/remove cart items
checkout	Complete purchases

API Key (Advanced)

Generate a key at Account Settings → Advanced → MCP API Key. Keys use the ud_mcp_* format.

export UD_MCP_API_KEY="ud_mcp_your_key_here"

Use as a Bearer token: Authorization: Bearer ud_mcp_your_key_here

Note: API keys grant full access to all tools. Use OAuth for scoped access.

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Tools

60 tools across 16 categories. See tools.md for the full reference and tool-annotations.reference.json for the MCP ToolAnnotation reference.

Category	Tools
Domain Search	ud_domains_search, ud_tld_list, ud_expireds_list, ud_knowledge_base_search
Portfolio	ud_portfolio_list, ud_domain_get
ICANN Contacts	ud_contacts_list, ud_contact_create
Cart	ud_cart_get, ud_cart_add_* (5 types), ud_cart_remove
Payment & Checkout	ud_cart_get_payment_methods, ud_cart_checkout, ud_cart_get_url, ud_cart_add_payment_method_url
Marketplace Listings	ud_listing_create/update/cancel, ud_offers_list, ud_offer_respond
Conversations	ud_leads_list/get, ud_lead_messages_list/send
DNS Records	ud_dns_records_list, ud_dns_record_add/update/remove, ud_dns_records_remove_all
DNS Nameservers	ud_dns_nameservers_list/set_custom/set_default
DNS Hosting	ud_dns_hosting_list/add/remove
Domain Operations	ud_domain_pending_operations, ud_domain_auto_renewal_update
Domain Management	ud_domain_tags_add/remove, ud_domain_flags_update, ud_domain_push
Backorders	ud_backorder_create/cancel, ud_backorders_list
AI Landing Pages	ud_domain_generate/status/download/upload/remove_lander, ud_ai_credits_get, ud_cart_add_ai_credits
DNS Presets	ud_presets_list/save/delete/apply
Session Handoff	ud_authenticated_url_get

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API Reference

Item	Value
Endpoint	https://api.unstoppabledomains.com/mcp/v1/
OpenAPI Spec	https://api.unstoppabledomains.com/mcp/v1/openapi.json
Transport	Streamable HTTP (MCP protocol)
Auth	Authorization: Bearer <oauth_token_or_api_key>
Docs	docs.unstoppabledomains.com/user-api

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Privacy & Data Practices

Data collected: When you use this MCP server, requests are processed by Unstoppable Domains servers. This includes domain names you search, portfolio data you query, DNS records you read or modify, and any purchase or marketplace actions you initiate.

Data storage: Unstoppable Domains stores account data, domain registrations, DNS records, and transaction history as required to provide the service. Conversation content from your AI assistant is not stored by Unstoppable Domains — only the API requests your assistant generates are received.

Data sharing: Unstoppable Domains does not sell personal data. Registration data for ICANN TLDs (.com, .net, .org, etc.) is shared with the relevant registry per ICANN policy. Payment processing is handled by third-party processors under their own privacy policies.

Data retention: Account and domain data is retained for the duration of your account and as required by law. You may request deletion of your account data via support@unstoppabledomains.com.

Full privacy policy: unstoppabledomains.com/privacy-policy

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Support

• Documentation: docs.unstoppabledomains.com
• Support: support.unstoppabledomains.com
• Email: support@unstoppabledomains.com
• Issues: github.com/unstoppabledomains/unstoppable-mcp-server/issues

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License

MIT © Unstoppable Domains