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MCP server · Developer Tools

alvii147/piston-mcp

by · github.com/alvii147/piston-mcp

MCP server that allows LLMs to connect to and execute code using Piston

Unclaimed MIT last commit 7 months ago devtoolsllmmcpuvpiston-api
InstallView source
56Fair

Scored 5 months ago · breakdown

About alvii147/piston-mcp

alvii147/piston-mcp is an MCP server published by alvii147 in the Developer Tools category: mCP server that allows LLMs to connect to and execute code using Piston.

The repository has 9 stars and 3 forks, with the last commit 7 months ago. Six months or more without a commit doesn't mean the server is broken, but check the open issues before depending on it in production.

Install

From source
git clone https://github.com/alvii147/piston-mcp

This server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.

Ask AI

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Security checks

Static checks derived from the repository just now. Heuristics on the source, not an audit.

  • ✓README presentThe repository ships documentation.
  • ✓License declaredUsable under a stated license.
  • ✓Tests presentA test suite exists in the repository.
  • ✓Dependencies pinnedA lockfile pins dependency versions.
  • ✓No dynamic code executionSource scan found no eval, dynamic Function, or shell execution.
  • !Scoped permissionsDoesn't declare a permission scope. Assume it can do anything its process can.

README

GitHub Actions License

[!WARNING] As of Feb 15, 2026, Piston API is no longer publicly available and requires an authorization token. This means piston-mcp will no longer work with the publicly hosted instance of Piston.

Installation

You can try out piston-mcp locally without cloning it.

Install uv

To try out piston-mcp you'll need to install uv:

# On MacOS and Linux
curl -LsSf https://astral.sh/uv/install.sh | sh
# On Windows
powershell -ExecutionPolicy ByPass -c "irm https://astral.sh/uv/install.ps1 | iex"

Install MCP Client

You will also need to download an MCP client to connect to piston-mcp, such as Claude Desktop.

Update MCP Client Configuration

Update the MCP client's configuration with the following configuration to connect to piston-mcp:

{
  "mcpServers": {
    "piston": {
      "command": "uv",
      "args": [
        "tool",
        "run",
        "--from",
        "git+https://github.com/alvii147/piston-mcp.git@main",
        "piston_mcp"
      ]
    }
  }
}

For Claude Desktop, the configuration file is usually found in:

# On MacOS and Linux
~/Library/Application\ Support/Claude/claude_desktop_config.json
# On Windows
%APPDATA%\Claude\claude_desktop_config.json

Usage

Once you've followed the steps above, your MCP client should be able to run code for you:

Claude Demo

Acknowledgements

README fetched from the repository just now. The original is authoritative.

Questions

About alvii147/piston-mcp

How do I install alvii147/piston-mcp?

No package has been published for this server, so install it from source: clone the repository and follow its README.

Is alvii147/piston-mcp safe to use with an AI agent?

Its trust score is 56 out of 100 (fair). It passes 5 of the 6 static security checks run so far; the failures are listed above. It has no ConduID identity yet, so agent calls to it are not receipted.

Is alvii147/piston-mcp still maintained?

The last commit was 7 months ago and 1 open issues. That's long enough that you should check whether the maintainer is responding to issues before depending on it.