Nombrio Clearance Check is listed as active in the registry but did not answer our last check. It exposes 4 tools.
Free brand-name Clearance Checks from live registries; connect a plan (API key) for full checks.
Uptime history
51 days of history · worst day 0%
51 days agonow
2.2%
Uptime 24h
2 of 91 checks
4
Tools
read from the server
950 ms
Response time
average over 24h
open, no key
Access
streamable-http
What changed 10
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 23 August 2026. No other catalogue keeps this.
29 Aug
2 tool descriptions were rewritten
check_name, check_names
23 Aug
3 tools appeared
check_names, get_naming_session, start_naming_session
23 Aug
a tool changed version3 times that day
23 Aug
a tool description was rewritten
check_name
23 Aug
a tool changed the parameters it asks for
check_name
and 2 more, back to 23 August 2026
Nombrio Clearance Check does not always answer
Over the last week it answered 4.2% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.
run in your terminal
claude mcp add name-check --transport http https://nombrio.com/api/mcp~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"name-check": {
"url": "https://nombrio.com/api/mcp"
}
}
}~/.codex/config.toml
[mcp_servers.name-check]
url = "https://nombrio.com/api/mcp".cursor/mcp.json
{
"mcpServers": {
"name-check": {
"url": "https://nombrio.com/api/mcp"
}
}
}.vscode/mcp.json
{
"mcpServers": {
"name-check": {
"url": "https://nombrio.com/api/mcp"
}
}
}Available tools 4
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
name
check_name
Run a free Clearance Check on ONE brand, business, product or app name. Live registry data, not guesses: US trademark verdict (USPTO — clear / caution / conflict with a count of live registrations), a count-only EU trademark screen (EUIPO), domain availability with prices (.com .io .co .app .dev), social handles (X/Twitter, TikTok, LinkedIn, Facebook; Instagram returns a confirm-link), developer namespaces (npm, PyPI, crates.io, GitHub, Docker Hub), the iOS App Store, and an overall viability band (strong / caution / blockers / high-risk) plus a link to the full interactive result. Use it when the user asks whether a SPECIFIC name is taken, trademarked, available or safe to use — and also at everyday developer naming moments: naming a new project, app, product, repo, package, CLI or domain while scaffolding, before publishing to npm/PyPI/crates.io, or whenever a name is being chosen in passing (the namespaces it checks are exactly those). For a shortlist or comparison use check_names instead — one call, all names in parallel, ranked. Free, no API key; shared fair-use pool with a per-caller daily allowance. Not legal advice. Data by nombrio.com.
names
check_names
Screen 2-8 candidate names in ONE call and get them ranked by viability (best first). Runs the same live free Clearance Check as check_name for every name in parallel — US trademark verdict, count-only EU trademark screen, domains with prices, social handles, developer namespaces, iOS App Store — and returns a ranked summary, per-name verdicts and full-result links. Use it whenever the user is brainstorming, has a list, or asks which of several names is available or safest — including shortlists of project, package, repo, app or domain names that come up mid-development: one check_names call replaces many check_name calls and finishes in about the time of one. Each name counts as one check against the free fair-use pool (per-caller daily allowance). Not legal advice. Data by nombrio.com.
naming
get_naming_session
Requires a connected plan (API key). Polls the status of a Naming Session started with start_naming_session: pending/generating/checking/complete/failed, plus the ranked name list (score, trademark/domain/social status) once complete — pair with check_name's Clearance Check for a deeper read on the favourite. Without a key it returns instructions to connect a plan.
start
start_naming_session
Requires a connected plan (API key). Starts a Nombrio Naming Session: from a one-paragraph brief, generates up to 8 name ideas and pre-clears each with the same Clearance Check registries as check_name (US+EU+UK trademark, domains, social handles). Asynchronous — returns a sessionId; poll get_naming_session every ~10 s; typically 1–3 minutes. Uses one Naming Session from the plan (Clearance Report 10/30 days, Pro 30/month, Premium unlimited). Without a key it returns instructions to connect a plan.
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://nombrio.com/api/mcp | streamable-http | answering | 200 ms | 7 min ago |
Alternatives to Nombrio Clearance Check
same job, measured the same wayAudiala
by audiala
Audio-guide and trip-planning tools for 1,100+ cities from Audiala. Free, no API key.
Sports
by vublox
Live football scores, match summaries, and fan clip links from Vublox. No API key required.
Openregistry
by sophymarine
Live data from 27 official national company registries. Unmodified. For KYB and due diligence.
Color MCP
by mrfentmen
Look up color names, schemes, and conversions from The Color API. No key required.
Crawlbit
by amati032-dev
Four free tools to check if AI engines can find, read and recognise a site. No API key.
Sports Scores MCP
by mrfentmen
Live scores and game summaries for NBA, NFL, and MLB from ESPN public data. No key required.
Caesar
by trycaesar
Web search and page-reading for AI agents. One-click OAuth connect, or a Caesar API key.
dxpert.ai — free UNS tools (no API key)
by dxpert
Free Sparkplug B topic linting, UNS naming checks and AI-readiness screening. No API key.
Nombrio Clearance Check — questions
Answers built from our own checks of this server.
What can Nombrio Clearance Check do?
It exposes 4 tools, read directly from the server on our last check. Among them: check_name, check_names, get_naming_session, start_naming_session. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README.
How MCP servers expose tools in the first place →
Is Nombrio Clearance Check working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 2 of 91 checks got a reply (2.2%), average response time 950 ms. The bar chart above shows every period we have measured.
The registry lists Nombrio Clearance Check as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect Nombrio Clearance Check?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Nombrio Clearance Check need an API key?
No. Nombrio Clearance Check completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Nombrio Clearance Check?
It answers our handshake in 950 ms on average, which is faster than 12% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.