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Modkeel MCP server

Which MCP servers are Modkeel'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 2026-10-24

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Whose server it is
  • Registry namecom.modkeel/modkeelverified in the MCP registry

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

When we asked itchecked 2026-10-24
  • Stateanswerschecked 2026-10-24
  • Tools7
  • Server calls itselfmodkeel
  • Server version1.11.4
  • Protocol version2025-06-18

On 2026-10-24 the server answered initialize and tools/list without a sign-in. First answer in 433 ms.

Should an agent connect itConnect it, with care
  • Its tools do find which mod likely caused a crash, but not save a copy of a world before mods change; move a whole modpack to another Minecraft version.

Once connected

  • For "find which mod likely caused a crash", the likely first call is diagnose_crash.

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: 11, the first on 2026-10-24
  • INITE MCP score81 of 100answers 100 · does the job 33 · definitions 100 · context 100 · connects 100
  • What an agent can do with it1 of 3 use cases
  • Answered100% of days11 of 11 daily checks
  • Median first answer518 ms
  • Space in an agent's context≈ 2,435 tokensthe definitions of all its tools (7), which an agent carries on every turn
  • Tool definitionsA · 100 of 100
  • Typed results7 of 7 toolsdeclared outputSchema: results come typed, read once
  • Every tool passes all six checks.

What an agent can do with it

  • cannot · save a copy of a world before mods change
  • can do · find which mod likely caused a crash
  • cannot · move a whole modpack to another Minecraft version

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 offers7 tools · read 2026-10-24
  • diagnose_crash

    Find the mod most likely behind a modded Minecraft crash (Fabric, NeoForge, Forge). Use it whenever the user shares a crash report or latest.log or says the game will not start. It is the only tool that reads logs, and it adds what the…

  • search_mods

    Turn a mod's display name or part of its id into the exact mod id the other lab tools take, and see which mods the Modkeel lab has data on. Use it first when you only have a name ("Entity Culling", "Sodium") or are unsure of the id; skip…

  • get_mod_info

    What one Minecraft mod is and where to get it: its Modrinth page (title, summary, categories, loaders, the Minecraft releases its author lists, client/server side, licence, downloads, source and issue links) next to a short Modkeel lab…

  • find_mod_download

    The exact file to install for one mod on one Minecraft version and loader, with its download link. Use it for "where do I get X for 26.2 Fabric?", after diagnose_crash names a mod that needs another build, or when updating a pack to a new…

  • get_mod_runs

    Everything the Modkeel lab saw one Minecraft mod do: each Minecraft version where it ran on a server or a client, or crashed, and every mod it ran with or clashed with. Use it for "does this mod work on 1.21.1?", "which versions was it…

  • check_mod_pair

    Whether two Minecraft mods ran together in the Modkeel lab, clashed, or were never tested together. Use it for "can I use X with Y?" or to check two suspects from diagnose_crash; for one mod's whole record, use get_mod_runs. Takes two mod…

  • check_mod_list

    A whole mod list or modpack checked against the Modkeel lab at once: every pair in it that clashed, the mods whose jar crashed, the pairs that ran together, and the mods the lab has no data on. Use it for "will these mods work together?"…

How to connect

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

{
  "mcpServers": {
    "modkeel": {
      "type": "http",
      "url": "https://api.modkeel.com/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

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

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://api.modkeel.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.