MCP Composer MCP Server

by oaslananka Your server? Claim it

local only

MCP Composer runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 7 Oct 2026.

Aggregate multiple MCP backends behind a single stdio endpoint with namespaced routing.

The author archived this repository on GitHub, meaning it is no longer maintained.

—

Installs / week

npm · @oaslananka/composer

Stars

2 open issues

7 Oct 2026

Last commit

from GitHub

Apache-2.0

License

TypeScript

What the code does

We read the source, 2 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.

Runs an external command apps/lab/src/main/ipc/handlers.ts:247, packages/composer/src/backends/BackendManager.ts:34, packages/forge/src/connections/ConnectionManager.ts:60 и ещё 1

      activeProcess = spawn(command, args, {

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.

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 composer -- npx -y @oaslananka/composer

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

{
  "mcpServers": {
    "composer": {
      "command": "npx",
      "args": [
        "-y",
        "@oaslananka/composer"
      ]
    }
  }
}

~/.codex/config.toml

[mcp_servers.composer]
command = "npx"
args = ["-y", "@oaslananka/composer"]

.cursor/mcp.json

{
  "mcpServers": {
    "composer": {
      "command": "npx",
      "args": [
        "-y",
        "@oaslananka/composer"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "composer": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@oaslananka/composer"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: COMPOSER_CONFIG (Path to the composer.yml backend definition file).

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MCP Composer — questions

Answers built from our own checks of this server.

Why is there no uptime for MCP Composer?

MCP Composer 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 @oaslananka/composer.

Is MCP Composer still maintained?

The author archived this repository on GitHub, meaning it is no longer maintained. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.

How do I connect MCP Composer?

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 @oaslananka/composer straight from npm; nothing to host, nothing to sign up for.

Is MCP Composer open source?

Yes — it is published under the Apache-2.0 licence, written in TypeScript, 2 stars on GitHub and 2 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.