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What's That Model? MCP server

Which servers in the official MCP registry are What's That Model?'s own, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-25

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Whose server it is
  • Registry namecom.whatsthatmodel/whats-that-modelverified in the MCP registry

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

When we asked itchecked 2026-10-25
  • Stateanswerschecked 2026-10-25
  • Tools8
  • Server calls itselfwhats-that-model
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-10-25 the server answered initialize and tools/list without a sign-in. First answer in 161 ms.

Should an agent connect itNot proven either way yet
  • Its tools do compare image and video models against a specific brief, but not animate one starting image into a short video; generate product shots for ecommerce listings.
  • Checked on 1 of the 7 days it takes to judge reliability.

Once connected

  • Parameters are untyped or undescribed in 7 of 8 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: 1, the first on 2026-10-26
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 1 so far
  • What an agent can do with it1 of 3 use cases
  • Answeredmeasuring1 of the 7 daily checks it takes to print a share
  • Median first answer629 ms
  • Space in an agent's context≈ 797 tokensthe definitions of all its tools (8), which an agent carries on every turn
  • Tool definitionsB · 85 of 100
  • Typed results0 of 8 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 7 of 8

What an agent can do with it

  • can do · compare image and video models against a specific brief
  • cannot · animate one starting image into a short video
  • cannot · generate product shots for ecommerce listings

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 (30%), doing the product's job (25%), definitions (20%), context (10%) and use (15%). 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 offers8 tools · read 2026-10-25
  • find_model

    Find an AI model by creation task and verified constraints. Editorial recommendation; not a benchmark score.

  • compare_models

    Compare documented capabilities and task fit. Unknowns stay explicit.

  • get_model

    Get model capabilities, dated citations, editorial limitations and labeled optional access link.

  • best_model_for

    Get an editorial shortlist for a known use case with verified constraints.

  • list_models

    List curated AI models including independent non-affiliate alternatives.

  • where_to_use

    Return official and optional commercial access destinations, without guaranteeing plan entitlements.

  • get_trending_workflows

    Get curated workflow spotlights; no unmeasured growth or income claims.

  • get_prompt_tips

    Get untested prompting guidance, clearly distinguished from measured outputs.

How to connect

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

{
  "mcpServers": {
    "whats-that-model": {
      "type": "http",
      "url": "https://whatsthatmodel.com/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

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

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://whatsthatmodel.com/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.