Summary
Connects your AI assistant to the Unstoppable Domains User API with 60 tools across domain search, registration, DNS management, and marketplace operations. You get OAuth-scoped access to check availability across TLDs, manage DNS records and nameservers, handle cart and checkout flows, create marketplace listings and respond to offers, and even generate AI landing pages for parked domains. The OAuth flow lets you grant specific scopes like domains:search or portfolio:write, or you can use API keys for full access. Useful when you want conversational domain portfolio management, bulk DNS updates, or integrated registration workflows without leaving your chat interface.
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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
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)
- Open Settings → Connectors → Add custom connector
- Paste:
https://api.unstoppabledomains.com/mcp/v1 - Click Add and authorize with your Unstoppable Domains account
ChatGPT
- Open ChatGPT Connector Settings and enable Developer Mode (beta)
- Create a new connector with URL:
https://api.unstoppabledomains.com/mcp/v1 - 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/"
}
}
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"
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.
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 |
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 |
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
Support
- Documentation: docs.unstoppabledomains.com
- Support: support.unstoppabledomains.com
- Email: support@unstoppabledomains.com
- Issues: github.com/unstoppabledomains/unstoppable-mcp-server/issues
License
MIT © Unstoppable Domains
Featured
Fastest browser for AI agents to run web automation tasks, always free.
Download Free life-time →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →Notes, actions and memory. Without a meeting bot. First month 100% off.
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TransportHTTP
UpdatedJun 3, 2026
