TLDMath
REMOTE · WWW.TLDMATH.COM · SCANNED SEP 26
Live domain availability and prices across registrars, ranked by true two-year cost.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability77
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 1490 tokens (~135/item across 11 items; 11 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 11 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 12 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
Unverified: 1 category
A category scored 0 because we could not verify it: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.
How do I install the TLDMath MCP server?
TLDMath is a hosted endpoint at https://www.tldmath.com/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · www.tldmath.com
claude mcp add --transport http com-tldmath-tldmath 'https://www.tldmath.com/mcp'
{
"mcpServers": {
"com-tldmath-tldmath": {
"url": "https://www.tldmath.com/mcp"
}
}
} {
"servers": {
"com-tldmath-tldmath": {
"type": "http",
"url": "https://www.tldmath.com/mcp"
}
}
} [mcp_servers.com-tldmath-tldmath] url = "https://www.tldmath.com/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-tldmath-tldmath": {
"type": "remote",
"url": "https://www.tldmath.com/mcp",
"enabled": true
}
}
} openclaw mcp add com-tldmath-tldmath --url 'https://www.tldmath.com/mcp' --transport streamable-http
mcp_servers:
com-tldmath-tldmath:
url: "https://www.tldmath.com/mcp" {
"McpServers": {
"com-tldmath-tldmath": {
"Transport": "http",
"Url": "https://www.tldmath.com/mcp"
}
}
} assistant mcp add com-tldmath-tldmath -t streamable-http -u 'https://www.tldmath.com/mcp'
{
"mcpServers": {
"com-tldmath-tldmath": {
"type": "http",
"url": "https://www.tldmath.com/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 26 Sept 26 74
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 26 Sept 2026 · Probed https://www.tldmath.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=www.tldmath.com | CN=YR2,O=Let's Encrypt,C=US | 23 Sept 2026 | 22 Dec 2026 | RSA 2048 | SHA256-RSA | 689d1fe0901d2e7ed915c121c723e80d682 |
| SANs: www.tldmath.com | ||||||
| CN=YR2,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | 4ebd24947e24d394802d84a52fd5b319 |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of www.tldmath.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| tldmath.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://www.tldmath.com/mcp | Verified | 200 | |
| http (plaintext) | http://www.tldmath.com/mcp | HTTPS enforced | 308 | https://www.tldmath.com/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
brand_check Brand check a name ~79
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.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | The name to check, e.g. "acme". |
No output schema declared.
No examples provided.
check_domain Check a domain ~105
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.
| Name | Type | Req | Description |
|---|---|---|---|
| domain | string | yes | A single domain name with its TLD, e.g. "acme.io". No subdomains. |
| fresh | boolean | – | Bypass the 10-minute cache and query every registrar live. Default false. |
No output schema declared.
No examples provided.
check_name_across_tlds Check a name across TLDs ~126
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.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | 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. |
No output schema declared.
No examples provided.
check_renewals Check renewals for owned domains ~108
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.
| Name | Type | Req | Description |
|---|---|---|---|
| domains | array | yes | Domains the user owns, e.g. ["example.com", "acme.io"]. |
No output schema declared.
No examples provided.
compare_email_hosting Compare email hosting for a domain ~159
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.
| Name | Type | Req | Description |
|---|---|---|---|
| mailboxes | integer | – | How many mailboxes/people. Default 1. |
| need | string | – | forward = forward to an existing inbox; mailbox = a real inbox (default); suite = mail + calendar + docs; private = end-to-end encrypted. |
No output schema declared.
No examples provided.
compare_tld_prices Compare TLD prices ~79
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.
| Name | Type | Req | Description |
|---|---|---|---|
| tld | string | yes | A TLD such as "com", ".ai" or "dev". |
No output schema declared.
No examples provided.
list_supported_tlds List supported TLDs ~28
TLDs with daily price tables, and the registrars TLDMath queries live.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
plan_dns_setup Plan DNS setup for a domain ~171
The DNS records a domain needs for a website host and/or an email provider, each checked against live public DNS (in place, missing, or needs change), plus where the domain’s DNS is hosted and records to remove. 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.
| Name | Type | Req | Description |
|---|---|---|---|
| domain | string | yes | The domain, e.g. "acme.dev". |
| string | – | Email provider, or "no-email" to lock the domain against spoofing. | |
| host | string | – | Where the website is hosted. |
| host_target | string | – | Netlify site (x.netlify.app), GitHub user, or Cloudflare Pages project (x.pages.dev), when the host needs one. |
No output schema declared.
No examples provided.
recommend_names Recommend names and TLDs for a project ~97
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 with the cheapest standard 2-year cost. Run check_domain on a pick for live per-registrar prices.
| Name | Type | Req | Description |
|---|---|---|---|
| description | string | yes | What the project is, who it is for, and its tone. One to three sentences. |
No output schema declared.
No examples provided.
taken_domain_options Options for a taken domain ~115
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.
| Name | Type | Req | Description |
|---|---|---|---|
| domain | string | yes | The taken domain, e.g. "acme.com". |
No output schema declared.
No examples provided.
tld_price_changes Domain price changes ~109
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.
| Name | Type | Req | Description |
|---|---|---|---|
| days | integer | – | How far back to look for registrar price changes. Default 30. |
| tld | string | – | Limit to one TLD, e.g. "com". Omit for all. |
No output schema declared.
No examples provided.
What is the TLDMath MCP server?
TLDMath is an MCP server listed in the public MCP registry as com.tldmath/tldmath. Live domain availability and prices across registrars, ranked by true two-year cost. This page covers its hosted endpoint (https://www.tldmath.com/mcp).
Is the TLDMath MCP server safe to use?
TLDMath scores 74 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the TLDMath MCP server expose?
TLDMath exposes 11 tools: check_domain, check_name_across_tlds, compare_tld_prices, recommend_names, brand_check, and 6 more. Their descriptions and schemas cost roughly 1,176 tokens of context every time the server is loaded.
Does the TLDMath MCP server require authentication?
No. We connected to TLDMath without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the TLDMath MCP server still maintained?
TLDMath is still listed as active in the MCP registry. We last reached this channel on 26 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.