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Frugal MCP Server

by brainsparker Your server? Claim it
local only

Frugal runs on your own machine — the client starts it, so there is no endpoint to ping. 74 installs a week from npm. Last commit 22 Oct 2026.

The open routing layer for AI tools: tool calls routed per policy, decision on every result.

Installs per day peak 15 · avg 6 · -12% w/w
a month agotoday
74
Installs / week
npm · frugal-mcp
2
Stars
0 open issues
22 Oct 2026
Last commit
1 release in 90 days
BUSL-1.1
License
Go

What the code does

We read the source, 6 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

  const res = spawnSync(binPath, process.argv.slice(2), { stdio: "inherit" });
In the project's build, not in the package

Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.

Builds a file path from a variable internal/install/install.go:327
        return filepath.Join(home, "Library", "Application Support", appDir, "storage")
Runs an external command pipeline/run_pipeline.py:27
    result = subprocess.run(cmd, env=env)

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

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.

run in your terminal
claude mcp add frugal -- npx -y frugal-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "frugal": {
      "command": "npx",
      "args": [
        "-y",
        "frugal-mcp"
      ]
    }
  }
}
~/.codex/config.toml
[mcp_servers.frugal]
command = "npx"
args = ["-y", "frugal-mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "frugal": {
      "command": "npx",
      "args": [
        "-y",
        "frugal-mcp"
      ]
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "frugal": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "frugal-mcp"
      ]
    }
  }
}

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Frugal — questions

Answers built from our own checks of this server.

Why is there no uptime for Frugal?
Frugal 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 frugal-mcp was installed 74 times last week.
How do I connect Frugal?
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 frugal-mcp straight from npm; nothing to host, nothing to sign up for.
How many people use Frugal?
The npm package frugal-mcp was installed 74 times in the last week. Week over week that is -12%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Frugal open source?
No, and the distinction matters: its licence is declared as BUSL-1.1. That makes it source-available — you can read the code, but the terms are the author's own, not one of the recognised open-source licences. Read them before you build on it.