TLDers Domain Prices

com.tldersPublished by tlders.comOfficial publisherv1.0.2Updated Oct 26, 2026

Compare domain prices across 145+ registrars and 1,100+ TLDs, find promo codes, check availability.

VerifiedStreamable HTTPWeb executableWeb Search & Scraping Business & Commerce

Server details

Identifier: com.tlders/domain-prices
Transport: Streamable HTTP
Runtime: Web executable
Trust: Verified
Published: Sep 27, 2026

Security note

MCP servers receive tool arguments from a conversation and may perform external actions. Review what a server can do before you enable it, and give it only the access it needs.

The registry verified that this server's namespace belongs to tlders.com, which also runs its endpoint. That identifies the publisher; it does not make the server's tools safe.

SourceWeft's checks cover whether the listing is complete and the endpoint answered; they do not review the server's code or what its tools do.

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Overview

AI-generated overview

Compares domain name prices across 145+ registrars and 1,100+ TLDs, finds promo codes and checks domain availability.

What you can do: Find the cheapest registrar per extension for registration, renewal, transfer and 3-year totals
List every registrar's register, renew and transfer price for one extension, with average and median
Compare registrar prices across up to 20 extensions side by side
Review per-registrar registration and renewal price history for an extension
List active registrar promo codes, biggest discount first
Check live availability of a full domain name and list tracked registrars with WHOIS-privacy info
When to use it: Useful when choosing where to register, renew or transfer a domain, comparing extension costs over several years, or checking whether a name is free before buying it elsewhere.
Requirements: A TLDers API key, sent as a bearer token in the Authorization header for the hosted endpoint or as the TLDERS_API_KEY environment variable for the local server. The local option needs Node.js 18+. Network access to the hosted endpoint. Free plan allows 100 requests a month; paid plans raise limits.

Before you install

The API key is a credential: a key passed in the URL query string should be treated like a password, and a leaked key should be revoked and replaced. All tools are read-only, so nothing is bought or registered, but prices and availability come from a third-party service and availability may be null when the registry cannot be reached.

Installation

In SourceWeft

Open TLDers Domain Prices in the dashboard and add it to a workspace.
Connect Authorization token credentials. They are stored privately and never shown on public pages.
Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.tlders%2Fdomain-prices/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "tlders-domain-prices": {
      "type": "http",
      "url": "https://www.tlders.com/api/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_TOKEN>"
      }
    }
  }
}

README

TLDers Domain Prices — MCP server

[M8ven Score] [test] [npm]

Live domain prices from 145+ registrars and 1,100+ TLDs, as a remote Model Context Protocol server. Ask your AI assistant where a domain is cheapest to register, renew or transfer, compare extensions, find promo codes and check availability — with real, daily-updated prices from TLDers.

Use it two ways: connect to the hosted server at https://www.tlders.com/api/mcp, or run this repository's small local (stdio) server, which forwards each tool call to the hosted one with your key.

Connect

Get a free API key at https://www.tlders.com/developers (no card needed).
Add a remote MCP server (Streamable HTTP):

Client	Setting
Clients that support headers (Claude Code, Cursor, VS Code, MCP Inspector)	URL `https://www.tlders.com/api/mcp`, header `Authorization: Bearer tld_live_...`
claude.ai custom connectors and other clients without header support	URL `https://www.tlders.com/api/mcp?key=tld_live_...`

Claude Code:

claude mcp add --transport http tlders https://www.tlders.com/api/mcp \  --header "Authorization: Bearer tld_live_..."

claude mcp add --transport http tlders https://www.tlders.com/api/mcp \  --header "Authorization: Bearer tld_live_..."

Treat a URL with ?key= like a password. If it leaks, revoke the key from your TLDers account and create a new one.

Local (stdio) server

For Claude Desktop's config file and other clients that run local servers. Needs Node.js 18+.

json

{  "mcpServers": {    "tlders": {      "command": "npx",      "args": ["-y", "@tlders/mcp"],      "env": { "TLDERS_API_KEY": "tld_live_..." }    }  }}

{  "mcpServers": {    "tlders": {      "command": "npx",      "args": ["-y", "@tlders/mcp"],      "env": { "TLDERS_API_KEY": "tld_live_..." }    }  }}

To run the server from source instead of the published package (useful while changing it), clone this repo, run npm install, then use "command": "node", "args": ["/path/to/tlders-mcp/index.js"]. It reads the same TLDERS_API_KEY variable, and TLDERS_MCP_URL overrides the hosted endpoint.

Plugin install

This repo is also an Agent Plugins package (plugin.json + mcp.json) that connects to the hosted server. Once installed, add your key by passing it as the api_key argument or switching the server URL to https://www.tlders.com/api/mcp?key=tld_live_....

Tools

Tool	What it does
`find_cheapest_tlds`	Cheapest registrar per extension for first-year registration, renewal, transfer and 3-year total
`get_tld_prices`	Every registrar's register / renew / transfer price for one extension, cheapest first
`compare_tlds`	Compare registrar prices across up to 20 extensions
`get_tld_price_history`	Per-registrar registration and renewal price history
`list_promo_codes`	Active registrar promo codes, biggest discount first
`check_domain_availability`	Live availability for a full domain name (RDAP, WHOIS fallback)
`list_registrars`	Every tracked registrar with WHOIS-privacy info

Prices are USD per year. First-year prices are often promotions, so the renewal price is always included.

All tools are read-only. Each one is annotated readOnlyHint: true, destructiveHint: false and idempotentHint: true. Nothing is bought, registered or changed, so clients can run them without asking for confirmation.

Example prompts

"Where is a .com cheapest to register and to renew?"
"Compare .io, .ai and .dev prices over three years."
"Is my-startup.dev available, and which registrar should I buy it from?"
"Are there any promo codes for .xyz right now?"

Plans

Full API docs and the OpenAPI spec: https://www.tlders.com/developers

Development

npm installnpm test   # node --test: every tool, its annotations and error handling, no network needed

npm installnpm test   # node --test: every tool, its annotations and error handling, no network needed

Support

[email protected]

Source: README.md at commit 1053a8d

Tools

find_cheapest_tlds

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.

Parametersqsorttypelimitapi_key

get_tld_prices

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.

Parameterstldrequiredapi_key

compare_tlds

Compare TLDs

Compare registrar prices across up to 20 extensions side by side.

Parameterstldsrequiredapi_key

get_tld_price_history

Get TLD price history

Per-registrar registration and renewal price history for one extension.

Parameterstldrequiredapi_key

check_domain_availability

Check domain availability

Live availability check for a full domain name (RDAP, WHOIS fallback). available is null if the registry could not be reached.

Parametersdomainrequiredapi_key

list_registrars

List registrars

Every domain registrar TLDers tracks, with WHOIS-privacy info and number of tracked TLDs.

Parametersapi_key

Version history

v1.0.2LatestSep 29, 2026
v1.0.1Sep 27, 2026
v1.0.0Sep 27, 2026

Score

100% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

Reached in the last 30 daysRequired25 pts
Auth declaredRequired10 pts
Tools listedRequired15 pts
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
License10 pts

Plan	Limit
Free	100 requests a month, one key
Monthly ($5) / Yearly	1,000 requests a day per key, up to 5 keys, plus bulk prices

TLDers Domain Prices

Overview

Installation

In SourceWeft

Use with an agent

Other MCP clients

README

TLDers Domain Prices — MCP server

Connect

Local (stdio) server

Plugin install

Tools

Example prompts

Plans

Development

Support

Tools

find_cheapest_tlds

get_tld_prices

compare_tlds

get_tld_price_history

list_promo_codes

check_domain_availability

list_registrars

Version history

Score