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TLDMath

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com.tldmath/tldmathv0.14.0 Domain verified

Live domain availability and prices across registrars, ranked by true two-year cost.

Cloud & DevOps Developer Tools

Website Registry entry

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brand_check

Check whether a name is free as a handle on GitHub, npm, PyPI, crates.io and YouTube, with links to check X, Instagram and TikTok by hand, plus links to the USPTO and WIPO trademark databases. Not legal advice.

namestring, required

The name to check, e.g. "acme".

TLDMath MCP server | mcptry

Tools (15)

brand_check

read-only

Argument	Type	Description
name*	string	The name to check, e.g. "acme".

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "name"
  ],
  "properties": {
    "name": {
      "type": "string",
      "pattern": "^[a-zA-Z0-9-]+$",
      "maxLength": 63,
      "minLength": 1,
      "description": "The name to check, e.g. \"acme\"."
    }
  }
}

check_domain

Live availability and price comparison for one exact domain (e.g. "acme.io") across registrars. Returns per-registrar registration, renewal and transfer prices, premium status, and a recommendation based on 2-year total cost.

read-only

Argument	Type	Description
fresh	boolean	Bypass the 10-minute cache and query every registrar live. Default false.
domain*	string	A single domain name with its TLD, e.g. "acme.io". No subdomains.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "domain"
  ],
  "properties": {
    "fresh": {
      "type": "boolean",
      "description": "Bypass the 10-minute cache and query every registrar live. Default false."
    },
    "domain": {
      "type": "string",
      "maxLength": 253,
      "minLength": 3,
      "description": "A single domain name with its TLD, e.g. \"acme.io\". No subdomains."
    }
  }
}

check_name_across_tlds

Check one name (e.g. "acme") across several TLDs at once and return availability plus the best 2-year price for each. Defaults to .com, .net, .io, .ai, .dev, .app. Max 8 TLDs per call.

read-only

Argument	Type	Description
name*	string	The name without a TLD, e.g. "acme".
tlds	array	TLDs to check, without or with a leading dot. Default: com, net, io, ai, dev, app.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "name"
  ],
  "properties": {
    "name": {
      "type": "string",
      "pattern": "^[a-zA-Z0-9-]+$",
      "maxLength": 63,
      "minLength": 1,
      "description": "The name without a TLD, e.g. \"acme\"."
    },
    "tlds": {
      "type": "array",
      "items": {
        "type": "string",
        "pattern": "^\\.?[a-zA-Z]{2,24}$"
      },
      "maxItems": 8,
      "description": "TLDs to check, without or with a leading dot. Default: com, net, io, ai, dev, app."
    }
  }
}

check_renewals

For domains the user already owns (up to 20): current registrar, expiry date, renewal price, and the cheapest registrar to transfer to, with the two-year saving. Registrar and expiry come from the public registry (RDAP); some TLDs such as .io have no RDAP. Suggests a free email reminder service at tldmath.com/watch.

read-only

Argument	Type	Description
domains*	array	Domains the user owns, e.g. ["example.com", "acme.io"].

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "domains"
  ],
  "properties": {
    "domains": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 253,
        "minLength": 3
      },
      "maxItems": 20,
      "minItems": 1,
      "description": "Domains the user owns, e.g. [\"example.com\", \"acme.io\"]."
    }
  }
}

compare_app_email

Services an app sends email through (sign-in links, password resets, receipts) ranked by two-year cost at a monthly volume, with free-tier daily and monthly caps and overage prices. Prices are curated from each provider’s pricing page with a date. Follow with plan_dns_setup (sender) for the SPF, DKIM and DMARC records.

read-only

Argument	Type	Description
emails_per_month	integer	How many emails the app sends a month. Default 10,000.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "emails_per_month": {
      "type": "integer",
      "maximum": 10000000,
      "minimum": 1,
      "description": "How many emails the app sends a month. Default 10,000."
    }
  }
}

compare_email_hosting

Custom-domain email providers ranked by two-year cost for a number of mailboxes: free forwarding (Cloudflare, ImprovMX), cheap mailboxes (Purelymail, Zoho, Migadu, iCloud+, Namecheap, Hostinger), office suites (Google Workspace, Microsoft 365, Zoho Workplace) and encrypted options (Proton). Includes intro-price traps and per-user vs flat pricing. Prices are curated from each provider’s pricing page with a date.

read-only

Argument	Type	Description
need	string	forward = forward to an existing inbox; mailbox = a real inbox (default); suite = mail + calendar + docs; private = end-to-end encrypted.
mailboxes	integer	How many mailboxes/people. Default 1.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "need": {
      "enum": [
        "forward",
        "mailbox",
        "suite",
        "private"
      ],
      "type": "string",
      "description": "forward = forward to an existing inbox; mailbox = a real inbox (default); suite = mail + calendar + docs; private = end-to-end encrypted."
    },
    "mailboxes": {
      "type": "integer",
      "maximum": 500,
      "minimum": 1,
      "description": "How many mailboxes/people. Default 1."
    }
  }
}

compare_tld_prices

Standard (non-premium) prices for one TLD across registrars, refreshed daily, sorted by 2-year cost. Use for general questions like "how much is a .io domain"; use check_domain for a specific name.

read-only

Argument	Type	Description
tld*	string	A TLD such as "com", ".ai" or "dev".

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "tld"
  ],
  "properties": {
    "tld": {
      "type": "string",
      "pattern": "^\\.?[a-zA-Z]{2,24}$",
      "description": "A TLD such as \"com\", \".ai\" or \"dev\"."
    }
  }
}

list_supported_tlds

TLDs with daily price tables, and the registrars TLDMath queries live.

read-only

No arguments.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {}
}

ownership_card

Which companies a domain depends on, from public records only: registrar with expiry and renewal price (registry RDAP), DNS host (nameservers), website host (A/CNAME and builder verification records), inbox (MX), and services that send mail as the domain (SPF includes, DKIM and bounce records), plus the DMARC policy. Each line shows its evidence. Use for handoffs (“which accounts do I open when it breaks?”), before moving hosts, or to audit a setup. Read-only, no sign-in.

read-only

Argument	Type	Description
domain*	string	The domain, e.g. "acme.dev".

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "domain"
  ],
  "properties": {
    "domain": {
      "type": "string",
      "maxLength": 253,
      "minLength": 3,
      "description": "The domain, e.g. \"acme.dev\"."
    }
  }
}

plan_app_move

An ordered, repeat-safe plan for moving an app built in an AI app builder (Lovable, Bolt, Replit, Base44…) to the user’s own host (Vercel, Netlify, Cloudflare Pages, GitHub Pages) on their domain: export the code, keep the data and sign-ins, deploy and copy environment variables, update auth redirect URLs, add the domain, switch DNS (the builder’s records still live that must go, and the new ones, checked against public DNS), verify, then disconnect the builder. If you can read the project, pass dependency names from package.json and variable NAMES from .env.example: never pass values or secrets. Read-only: it changes nothing. Show the steps and ask before running any command; commands prompt for secret values themselves. Call again after the DNS change to confirm, or use plan_dns_setup.

read-only

Argument	Type	Description
to*	string	Where it moves to.
from*	string	The builder the app runs on today.
domain*	string	The app’s custom domain, e.g. "acme.dev".
env_names	array	Environment variable names only (from .env.example or the builder’s secrets list). Never values.
to_target	string	Netlify site (x.netlify.app), GitHub user, or Cloudflare Pages project (x.pages.dev), when the host needs one.
dependencies

plan_dns_setup

The DNS records a domain needs for a website host or AI app builder (Lovable, Bolt, v0, Replit, Base44, Framer, Webflow, Bubble), an inbox provider, and/or the service an app sends email through (SPF, DKIM, DMARC), each checked against live public DNS (in place, missing, or needs change), plus where the domain’s DNS is hosted and records to remove. SPF records from different providers are merged into one. Read-only: it never changes DNS. Use after the user buys a domain, or when their site or email on a custom domain isn’t working.

read-only

Argument	Type	Description
host	string	Where the website is built or hosted (an AI app builder like lovable or bolt, or a host like vercel).
email	string	Inbox provider for people, or "no-email" to lock the domain against spoofing.
domain*	string	The domain, e.g. "acme.dev".
sender	string	Transactional email service the app sends through (sign-in links, receipts).
host_target	string	Netlify site (x.netlify.app), GitHub user, or Cloudflare Pages project (x.pages.dev), when the host needs one.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "domain"
  ],
  "properties": {
    "host": {
      "enum": [
        "lovable",
        "bolt",
        "v0",
        "replit",
        "base44",
        "framer",
        "webflow",
        "bubble",
        "vercel",
        "netlify",
        "github-pages",
        "cloudflare-pages"
      ],
      "type": "string",
      "description": "Where the website is built or hosted (an AI app builder like lovable or bolt, or a host like vercel)."
    },
    "email": {
      "enum": [
        "google-workspace",
        "microsoft-365",
        "zoho-mail",
        "fastmail",
        "proton-mail",
        "icloud",
        "purelymail",
        "migadu",
        "namecheap-email",
        "hostinger-email",
        "cloudflare-email",
        "no-email"
      ],
      "type": "string",
      "description": "Inbox provider for people, or \"no-email\" to lock the domain against spoofing."
    },
    "domain": {
      "type": "string",
      "maxLength": 253,
      "minLength": 3,
      "description": "The domain, e.g. \"acme.dev\"."
    },
    "sender": {
      "enum": [
        "resend",
        "postmark",
        "amazon-ses",
        "sendgrid",
        "mailgun",
        "mailersend"
      ],
      "type": "string",
      "description": "Transactional email service the app sends through (sign-in links, receipts)."
    },
    "host_target": {
      "type": "string",
      "maxLength": 253,
      "description": "Netlify site (x.netlify.app), GitHub user, or Cloudflare Pages project (x.pages.dev), when the host needs one."
    }
  }
}

plan_launch_steps

The DNS plan for a domain (website host or AI app builder, inbox, app-email service) as ordered, repeat-safe steps with commands the user’s own tools can run: Vercel CLI, Cloudflare’s API with a token from the CLOUDFLARE_API_TOKEN environment variable, Resend’s API with RESEND_API_KEY; a manual list for other DNS hosts. Only records not yet in place get a command, so call it again after each change. Read-only: TLDMath runs nothing. Follow the guardrails in the result: show each change and ask first, never ask for keys in the chat, no deletes without the user naming the record.

read-only

Argument	Type	Description
host	string	Where the website is built or hosted.
email	string	Inbox provider, or "no-email".
domain*	string	The domain, e.g. "acme.dev".
sender	string	Transactional email service the app sends through.
host_target	string	Netlify site (x.netlify.app), GitHub user, or Cloudflare Pages project (x.pages.dev), when the host needs one.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "domain"
  ],
  "properties": {
    "host": {
      "enum": [
        "lovable",
        "bolt",
        "v0",
        "replit",
        "base44",
        "framer",
        "webflow",
        "bubble",
        "vercel",
        "netlify",
        "github-pages",
        "cloudflare-pages"
      ],
      "type": "string",
      "description": "Where the website is built or hosted."
    },
    "email": {
      "enum": [
        "google-workspace",
        "microsoft-365",
        "zoho-mail",
        "fastmail",
        "proton-mail",
        "icloud",
        "purelymail",
        "migadu",
        "namecheap-email",
        "hostinger-email",
        "cloudflare-email",
        "no-email"
      ],
      "type": "string",
      "description": "Inbox provider, or \"no-email\"."
    },
    "domain": {
      "type": "string",
      "maxLength": 253,
      "minLength": 3,
      "description": "The domain, e.g. \"acme.dev\"."
    },
    "sender": {
      "enum": [
        "resend",
        "postmark",
        "amazon-ses",
        "sendgrid",
        "mailgun",
        "mailersend"
      ],
      "type": "string",
      "description": "Transactional email service the app sends through."
    },
    "host_target": {
      "type": "string",
      "maxLength": 253,
      "description": "Netlify site (x.netlify.app), GitHub user, or Cloudflare Pages project (x.pages.dev), when the host needs one."
    }
  }
}

recommend_names

Given a short project description, recommend 3-5 TLDs (best fit first, with reasons) and 10 brandable names, each screened for availability on the top 3 TLDs (or up to 3 the user picks) with the cheapest standard 2-year cost. Optional: a naming style, a word every name must contain (anywhere, at the start or at the end), and a maximum length. Nothing is stored. Run check_domain on a pick for live per-registrar prices.

read-only

Argument	Type	Description
tlds	array	Up to 3 extensions to check the names on, e.g. ["com","ai"]. Default: the top 3 recommended.
style	string	coined = invented words; evocative = real words that suggest the feeling; descriptive = says what it does; compound = two short words joined.
max_length	integer	Longest name allowed, in characters.
description*	string	What the project is, who it is for, and its tone. One to three sentences.
include_word	string	A word every name must contain, e.g. "pay".
word_position	string	Where include_word goes. Default anywhere.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "description"
  ],
  "properties": {
    "tlds": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "maxItems": 3,
      "description": "Up to 3 extensions to check the names on, e.g. [\"com\",\"ai\"]. Default: the top 3 recommended."
    },
    "style": {
      "enum": [
        "coined",
        "evocative",
        "descriptive",
        "compound"
      ],
      "type": "string",
      "description": "coined = invented words; evocative = real words that suggest the feeling; descriptive = says what it does; compound = two short words joined."
    },
    "max_length": {
      "type": "integer",
      "maximum": 15,
      "minimum": 5,
      "description": "Longest name allowed, in characters."
    },
    "description": {
      "type": "string",
      "maxLength": 600,
      "minLength": 10,
      "description": "What the project is, who it is for, and its tone. One to three sentences."
    },
    "include_word": {
      "type": "string",
      "maxLength": 10,
      "minLength": 2,
      "description": "A word every name must contain, e.g. \"pay\"."
    },
    "word_position": {
      "enum": [
        "anywhere",
        "start",
        "end"
      ],
      "type": "string",
      "description": "Where include_word goes. Default anywhere."
    }
  }
}

taken_domain_options

For a domain someone else owns: its registrar and expiry, where it is in the expiry-to-release cycle (active, expiring soon, expired, redemption, pending delete) with an estimated drop window, whether it is parked at a marketplace such as Afternic or Sedo (so possibly for sale), and backorder links. Also points to free email alerts at tldmath.com/watch for when it nears expiry or drops.

read-only

Argument	Type	Description
domain*	string	The taken domain, e.g. "acme.com".

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "domain"
  ],
  "properties": {
    "domain": {
      "type": "string",
      "maxLength": 253,
      "minLength": 3,
      "description": "The taken domain, e.g. \"acme.com\"."
    }
  }
}

tld_price_changes

Announced registry (wholesale) price increases, upcoming and from the past year, plus changes to registrar standard prices seen in TLDMath’s daily checks. Use for "is .com going up?" or "should I renew early?". Optionally filter by TLD.

read-only

Argument	Type	Description
tld	string	Limit to one TLD, e.g. "com". Omit for all.
days	integer	How far back to look for registrar price changes. Default 30.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "tld": {
      "type": "string",
      "pattern": "^\\.?[a-zA-Z]{2,24}$",
      "description": "Limit to one TLD, e.g. \"com\". Omit for all."
    },
    "days": {
      "type": "integer",
      "maximum": 365,
      "minimum": 1,
      "description": "How far back to look for registrar price changes. Default 30."
    }
  }
}