domain-prices

TLDers Domain Pricing API gives you daily registration, renewal and transfer prices for 1,100+ domain extensions from 145+ registrars, plus price history…

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What it can do

  • Find Cheapest Tlds: List domain extensions (TLDs) with the cheapest registrar for first-year registration, renewal, transfer and 3-year total. Prices in USD/year.
  • Get Tld Prices: Every registrar’s current register / renew / transfer price for one extension (e.g. "com", "io", "co.in"), cheapest first, plus average and median.
  • Compare Tlds: Compare registrar prices across up to 20 extensions side by side.

What data it sees

Do you need an account

An API key from the service settings is required

TLDers Domain Pricing API gives you daily registration, renewal and transfer prices for 1,100+ domain extensions from 145+ registrars, plus price history, active promo codes and live availability checks. Built for domain investors, hosting resellers, SaaS signup flows and AI agents.

How to connect

How to connect domain-prices to Claude

The server address to paste into Claude settings:

https://domain-prices--tlderscom.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect domain-prices to ChatGPT

The server address to paste into ChatGPT settings:

https://domain-prices--tlderscom.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect domain-prices to Cursor

The server address to paste into Cursor settings:

https://domain-prices--tlderscom.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (7)

Raw names from tools/list. Only developers need these.

find_cheapest_tldsList domain extensions (TLDs) with the cheapest registrar for first-year registration, renewal, transfer and 3-year total. Prices in USD/year.
get_tld_pricesEvery registrar’s current register / renew / transfer price for one extension (e.g. "com", "io", "co.in"), cheapest first, plus average and median.
compare_tldsCompare registrar prices across up to 20 extensions side by side.
get_tld_price_historyPer-registrar registration and renewal price history for one extension.
list_promo_codesCurrently active registrar promo/coupon codes, biggest discount first.
check_domain_availabilityLive availability check for a full domain name (RDAP, WHOIS fallback). available is null if the registry could not be reached.
list_registrarsEvery domain registrar TLDers tracks, with WHOIS-privacy info and number of tracked TLDs.