Which AI assistants work with the TLDSpy MCP server?

TLDSpy works with Claude, ChatGPT, Gemini, Claude Code, Cursor and other apps that support remote MCP connections. Adding a custom connection may require a supported plan or workspace permission in your AI app.

Is the TLDSpy MCP server free?

TLDSpy's free plan includes 500 results a day for 22 popular extensions. Pro unlocks every extension and tool with 2,000 results a day. Your AI app's own subscription is separate.

MCP stands for Model Context Protocol. It lets an AI assistant connect to services like TLDSpy and look up information while you chat. Once connected, you can ask for prices in plain English.

Can the MCP server change anything in my account or buy domains?

No. Every tool is read-only. Regenerating your API key disconnects every assistant.

Ask ChatGPT or Claude about domain prices.

Ask ChatGPT or Claude where to buy a domain, what it costs to renew, or whether your name is available. Connect TLDSpy once and get answers from our domain data, right in your chat.

Prices from 44 registrars, checked daily. Free TLDSpy plan for 22 popular extensions.

Create a free TLDSpy account How to connect

What would you like to know?

“Where is the cheapest place to renew my .io domain?”

Compare renewal prices across registrars without opening each website.

Included in the free TLDSpy plan

“What would a .ai domain cost me over five years?”

See the first-year cost and four renewals at current rates, together.

Included in the free TLDSpy plan

“Is mybrand available in .com, .io and .dev?”

Check whether someone has already registered each name.

Included in the free TLDSpy plan

“Find domain extensions under $5 to buy and under $15 to renew.”

Set your budget for both the first year and the years after it.

Requires TLDSpy Pro or above

“Is Porkbun or Namecheap cheaper for .com, .io and .dev?”

Compare both registrars for the TLDs you care about.

Requires TLDSpy Pro or above

“Which .xyz prices changed this month?”

See which registrars changed their prices and by how much.

Requires TLDSpy Pro or above

Domain prices are checked daily and shown in USD, excluding VAT. Availability is checked when you ask. Your assistant can link to TLDSpy so you can check the comparison yourself.

How do I connect my AI assistant?

Add this server URL to your assistant. Chat apps then ask you to sign in to TLDSpy, and you can create a free account at that step.

https://api.tldspy.com/mcp

Claude, ChatGPT or Gemini

Pick your assistant for step-by-step setup.

Claude ChatGPT Gemini

Claude Code

Replace YOUR_API_KEY with the key on your account page. Cursor uses the same key.

claude mcp add --transport http tldspy https://api.tldspy.com/mcp --header "Authorization: Bearer YOUR_API_KEY"

Cursor and other config-file clients

In mcp.json:

{
  "mcpServers": {
    "tldspy": {
      "url": "https://api.tldspy.com/mcp",
      "headers": { "Authorization": "Bearer YOUR_API_KEY" }
    }
  }
}

Which tools are included in each plan?

A result is one price returned or one domain checked. One question can use several results. Free includes 500 results a day; Pro includes 2,000 and covers all 3,281 extensions. All plans

Tool	Returns	Results counted	Plan
compare_tld_prices	Every registrar for 1 to 10 TLDs, ranked, with averages and deals	registrars returned	Free
check_availability	Availability of up to 50 domains	domains checked	Free
lookup_domain	Live WHOIS/RDAP, DNS, SSL and HTTP status of a domain	1	Free
list_registrars	Registrar keys, websites and catalogue size	1	Free
search, fetch	Documents for ChatGPT deep research, with links to tldspy.com	rows in the document	Free
search_prices	Filter and sort prices across every TLD and registrar	rows returned	Pro
compare_registrars	2 to 5 registrars' full price lists side by side	rows × registrars	Pro
list_tlds	TLDs with registrar coverage and lowest prices	TLDs returned	Pro
get_price_history	Recorded price changes for a TLD	records returned	Pro
get_account_usage	Your plan and results used today	0	Free
get_api_reference	How to call the TLDSpy API: endpoints, parameters and a ready curl command	0	Free

Free TLDs: .com, .net, .org, .co, .io, .ai, .me, .info, .us, .tech, .dev, .biz, .so, .online, .site, .store, .shop, .app, .blog, .xyz, .uk, .de.

Questions

Which AI assistants work with the TLDSpy MCP server?: TLDSpy works with Claude, ChatGPT, Gemini, Claude Code, Cursor and other apps that support remote MCP connections. Adding a custom connection may require a supported plan or workspace permission in your AI app.
Is the TLDSpy MCP server free?: TLDSpy's free plan includes 500 results a day for 22 popular extensions. Pro unlocks every extension and tool with 2,000 results a day. Your AI app's own subscription is separate.
What is MCP?: MCP stands for Model Context Protocol. It lets an AI assistant connect to services like TLDSpy and look up information while you chat. Once connected, you can ask for prices in plain English.
Can the MCP server change anything in my account or buy domains?: No. Every tool is read-only. Regenerating your API key disconnects every assistant.