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GRAUNT MCP server

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

read 2026-10-21

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Whose server it is
  • Registry namecom.graunt/marketplaceverified in the MCP registry

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

When we asked itchecked 2026-10-21
  • Stateanswerschecked 2026-10-21
  • Tools9
  • Server calls itselfgraunt-mcp
  • Server version0.1.0
  • Protocol version2025-06-18

On 2026-10-21 the server answered initialize and tools/list without a sign-in. First answer in 257 ms.

Should an agent connect itSkip it
  • Its tools do none of the product's use cases we checked: buy licensed datasets for AI training; sell datasets you have built.
  • Checked on 4 of the 7 days it takes to judge reliability.

Once connected

  • Parameters are untyped or undescribed in 4 of 9 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: 4, the first on 2026-10-21
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 4 so far
  • What an agent can do with it0 of 2 use cases
  • Answeredmeasuring4 of the 7 daily checks it takes to print a share
  • Median first answer255 ms
  • Space in an agent's context≈ 703 tokensthe definitions of all its tools (9), which an agent carries on every turn
  • Tool definitionsA · 93 of 100
  • Typed results2 of 9 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 4 of 9

What an agent can do with it

  • cannot · buy licensed datasets for AI training
  • cannot · sell datasets you have built
  • not sure · let an agent search and inspect dataset packets

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 offers9 tools · read 2026-10-21
  • search

    Search the Graunt catalog of evaluated data packets. Returns matching packets with their id, title, and public URL.

  • fetch

    Read one Graunt catalog packet by id. Returns its title, description, price and whether an account is needed, its seller-declared rights, and its public URL. A free packet that needs no account also returns its files: small text files…

  • search_assets

    Search the public catalog of evaluated packets and listings. Returns paginated matches.

  • get_asset

    Read a single listing by id. Public projection.

  • get_agent_commerce_manifest

    Read the agent commerce manifest for a listing: price, rights, and how to buy it.

  • get_asset_manifest

    Read the canonical asset manifest (sha256-stamped).

  • get_bundle_manifest

    Read the per-asset bundle inventory: every delivered file with role, format, size and content hash, plus counts that name the population each one counted.

  • meta_capabilities

    Read /v1/meta/capabilities — the authoritative capability state map.

  • meta_refinery_support_matrix

    Read /v1/meta/refinery-support-matrix.

How to connect

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

{
  "mcpServers": {
    "marketplace": {
      "type": "http",
      "url": "https://api.graunt.com/v1/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http graunt https://api.graunt.com/v1/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://api.graunt.com/v1/mcp as a custom connector in the settings.

OpenAPI spec

175 paths, read 2026-10-21. Open the spec ↗

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.