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Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Other

VanityNumbers.com

Find phone numbers that spell a word, toll free or local, with status, price and history.

Checks passed
13 / 22

1 failed · 8 not measured

Median response
447 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
6

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
Publisher identityCan the publisher be traced to its source?
312

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 447 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name vanitynumbers.

  • Pass
    Lists tools

    tools/list returned 6 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 447 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 447 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Pass
    Parameters documented

    16 of 16 parameters have a description (100%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Fail
    Source repo linked

    No repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-10-16T19:29:05.569192Z, within 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Start using VanityNumbers.com

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http vanitynumbers-com https://vanitynumbers.com/mcp

Capabilities

Tools 6

check_number

Check one US or Canadian phone number, toll free or local, by digits or by its spelling (877-393-7552 or 877-EYES-LLC). Use it when someone asks whether a number is available, what it costs, or what it is today. Returns its status (available, backorder, rent to own, with another vendor, in use, or for a local number the phone company first given its block, when, and the company that has it today, with each company's page on NewLocalNumbers.com), its price when it has one, and links to its history and to finish on VanityNumbers.com. When the number spells a word, it also names the word and lists numbers like it that can be ordered.

Discovered
find_business_numbers

Find toll free numbers for a type of business, like PLUMBING, DENTIST or LAWYER: the best ones available now (from 1800AVAILABLE.com) and recently disconnected ones that can be requested, up to 10 of each. Use it when someone wants to browse numbers for their kind of business rather than one word. Returns each number's price, and links to its page and to the category's page to see more.

Discovered
number_history

See a toll free number's history from Resporgs.com: which RespOrgs (the companies that manage toll free numbers) have held it and when, and its status in each span, from the toll free registry's records. Use it when someone asks who had a toll free number before, or how long it has been with its current company. Returns the current holder, each earlier span, newest first, and a link to the number's page on Resporgs.com.

Discovered
request_vendor_number

Pass along a person's request for a toll free number held by another vanity number vendor, the kind check_number and the searches show as with another vendor, with no list price. Use it when the person asks to request that number and gives their name and email. Bill Quimby at VanityNumbers.com reviews each request by hand to confirm it's available and what it would cost, and answers by email, usually within a day; it costs nothing to ask. Returns whether it was sent and what happens next. It can't buy or reserve the number.

Discovered
search_vanity_numbers

Find a new phone number for a business that spells a word, like 1-800-PLUMBER: toll free (800, 888, 877, 866, 855, 844, 833) or local in a state. Use it when someone wants a memorable or vanity number, an 800 or toll free number, or a number that spells their business name or what they do; give it that word (PLUMBER, BAKERY). Returns the word in all seven toll free area codes with each one's status and price, a recommended pick, close versions available for $49, local numbers in a state when one is given, the word's business category pages, and links to finish on VanityNumbers.com. It doesn't look up an existing business's phone number.

Discovered
watch_number

Set up a notification about a toll free or local phone number for a person who wants an email when it changes: a number they want that someone has today, or a local number whose block no phone company has been given yet. Use it when the person asks to be told about a number and gives their email address. VanityNumbers.com emails them a link to confirm, and nothing starts until they click it. Then they get what we have on it now. A toll free number is followed with the same 7 digits in all 7 toll free area codes; a local number with every version of it in its state, a check each month of whether it's still in use, and, if no phone company has its block yet, when our data shows one was given it. After that they get an email on the 15th when it or a related number has changed, and every three months to say the notification is still on. Returns whether the confirm email went out. It can't buy or reserve a number.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected447 ms6