MCP Code Runner

This is a project configured with an MCP code runner server, supporting code execution in a container or virtual machine environment.

Developer tools Education and learning tools #Code Execution #Container Environment #MCP Service .Python

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update time : 2025-12-12

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What is the MCP Code Runner?

The MCP Code Runner is a service based on the Model Context Protocol (MCP) that provides a secure sandbox environment for code execution. By running code in isolated containers or virtual machines, it ensures the security of the main system and prevents malicious code from causing damage. This tool is particularly suitable for scenarios that require the execution of untrusted code, such as online code editors, automated testing platforms, or code evaluation systems.

How to use the MCP Code Runner?

Using the MCP Code Runner is very simple. First, you need to configure the connection to the server through the MCP client. Then, you can send the code to be executed to the server, and the server will run the code in an isolated environment and return the results. You don't need to worry about the code having any impact on your local system during the whole process.

Applicable Scenarios

The MCP Code Runner is suitable for various scenarios: code practice and assignment submission on educational platforms, coding tests in technical interviews, automated building and testing of open - source projects, and any application that requires the secure execution of user - submitted code.

Main Features

Secure Code Execution

Run code in a completely isolated container or virtual machine environment to ensure the security of the main system and prevent code escape and system resource abuse.

Flexible Configuration Options

Support custom container names, working directories, and running parameters to meet different code execution requirements and environment configurations.

Long - term Running Support

As a long - term running service, it can continuously process code execution requests, suitable for application scenarios that require frequent code execution.

Standardized Interface

Provide a standardized interface based on the MCP protocol, which is easy to integrate into various MCP - supported clients and applications.

Advantages

High security: Code runs in a completely isolated environment without affecting the host system

Easy to integrate: Based on the standard MCP protocol, it can be easily integrated into existing systems

Flexible configuration: Support custom container parameters to meet different execution requirements

Resource controllable: Can limit the computing resources used by the code to prevent resource exhaustion

Limitations

Performance overhead: The containerized environment will bring certain performance overhead

Environment limitations: Some code that requires special hardware access may not be executable

Configuration complexity: Requires correct configuration of the container environment and dependencies

Network limitations: By default, containers may not be able to access external network resources

How to Use

Configure the MCP Client

Add the configuration information of the code runner server to your MCP client configuration file.

Start the Server

Ensure that the code runner server is running and the MCP client can connect to it.

Send an Execution Request

Send a code execution request through the MCP client, including the code to be executed and necessary parameters.

Get the Execution Result

The server will execute the code in an isolated environment and return the output result, execution status, and possible error information to the client.

Usage Examples

Online Programming Practice Platform

Educational platforms use the code runner to securely execute programming assignments submitted by students, automatically check the correctness of the code, and provide immediate feedback.

Technical Interview Coding Test

Recruitment platforms use the code runner to evaluate candidates' programming abilities and run the algorithm solutions written by candidates in a secure environment.

Automated Code Quality Check

Development teams use the code runner to automatically run unit tests and code quality checks in the CI/CD pipeline to ensure that code changes do not introduce problems.