Skip to content

Fit Card MCP server

Which MCP servers are Fit Card's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-11-02

← Back to Fit Card

Whose server it is
  • Registry nameai.fitcard/fitcardverified in the MCP registry

The registry name sits under fitcard.ai. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-11-02
  • Stateanswerschecked 2026-11-02
  • Tools3
  • Server calls itselffitcard
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-11-02 the server answered initialize and tools/list without a sign-in. First answer in 146 ms.

Should an agent connect itNot proven either way yet
  • Its tools do every use case we checked: pick the right shirt size at a new brand; build a size profile from shirts you already own.
  • Checked on 3 of the 7 days it takes to judge reliability.

Once connected

  • For "build a size profile from shirts you already own", the likely first call is what_to_buy.
  • Parameters are untyped or undescribed in 1 of 3 tools: check arguments before calling.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 3, the first on 2026-11-02
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 3 so far
  • What an agent can do with it2 of 2 use cases
  • Answeredmeasuring3 of the 7 daily checks it takes to print a share
  • Median first answer1336 ms
  • Space in an agent's context≈ 1,241 tokensthe definitions of all its tools (3), which an agent carries on every turn
  • Tool definitionsA · 94 of 100
  • Typed results0 of 3 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 1 of 3

What an agent can do with it

  • can do · pick the right shirt size at a new brand
  • can do · build a size profile from shirts you already own
  • not sure · check size fit on shirt product pages with an extension

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers3 tools · read 2026-11-02
  • size_me

    Recommends a size in one shirt for this man, from the shirts he already owns that fit. Returns the size, why (in terms of his own shirts), how it will fit, and a confidence. Tell him exactly the size it gives: it already accounts for his…

  • what_to_buy

    Builds his Fit Card from the shirts he owns and returns the shirts that will fit him, each in the right size, with a buy link. Also returns a link to his full card on fitcard.ai. Give each shirt in exactly the size listed; a "snugger" or…

  • shirt_measurements

    The real garment measurements of a shirt (chest all the way around and length, in inches) in each size, from the brand's own chart or other checked sources. Not a body-size chart.

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "fitcard": {
      "type": "http",
      "url": "https://fitcard.ai/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http fitcard https://fitcard.ai/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://fitcard.ai/mcp as a custom connector in the settings.

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.