Grain MCP Server

by mrfentmen Your server? Claim it

local only

Grain MCP runs on your own machine — the client starts it, so there is no endpoint to ping.

Grain MCP: 20 real tools to read, check, lint, scaffold, build and run Grain code.

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Installs / week

npm · @mrfentmen/grain-mcp

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Stars

on GitHub

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Last commit

2 releases in 90 days

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License

language unknown

Nothing serious here today

Today is the operative word: we check Grain MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add grain-mcp -- npx -y @mrfentmen/grain-mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "grain-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@mrfentmen/grain-mcp"
      ]
    }
  }
}

~/.codex/config.toml

[mcp_servers.grain-mcp]
command = "npx"
args = ["-y", "@mrfentmen/grain-mcp"]

.cursor/mcp.json

{
  "mcpServers": {
    "grain-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@mrfentmen/grain-mcp"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "grain-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@mrfentmen/grain-mcp"
      ]
    }
  }
}

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Grain MCP — questions

Answers built from our own checks of this server.

Why is there no uptime for Grain MCP?

Grain MCP runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @mrfentmen/grain-mcp.

How do I connect Grain MCP?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls @mrfentmen/grain-mcp straight from npm; nothing to host, nothing to sign up for.