HackerEarth MCP Server: Install & Setup

Install HackerEarth in Claude Code

Claude Code

claude mcp add hackerearth -e HACKEREARTH_KEY=... -- uvx hackerearth-mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "hackerearth": {
      "command": "uvx",
      "args": [
        "hackerearth-mcp"
      ],
      "env": {
        "HACKEREARTH_KEY": "..."
      }
    }
  }
}

Replace each ... with your own value.

Frequently asked questions

What does the HackerEarth MCP server do?

Give any AI assistant a code run button: execute code in 24 languages on HackerEarth's sandboxed servers. uvx hackerearth-mcp.

Is the HackerEarth MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does HackerEarth run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add HackerEarth to Claude Code?

Run: claude mcp add hackerearth -e HACKEREARTH_KEY=... -- uvx hackerearth-mcp

More code execution MCP servers

View all

PRIMS

hileamlakB/PRIMS

Python runtime interpreter that executes submitted code in an isolated environment.

LocalFreePython

Openapi to

ouvreboite/openapi-to-mcp

Access any API via its OpenAPI specification, with full JSON Schema support for parameters and request bodies.

LocalAccount neededC#

Colab

SebastianGilPinzon/colab-mcp

Control Google Colab notebooks and assign GPUs (T4/L4/A100). Fork of Google's colab-mcp with all tools visible at startup and Windows support.

LocalFreePython

Capsule

mavdol/capsule/mcp-server

Run untrusted Python/JavaScript code in WebAssembly sandboxes.

LocalFreeRust

Agentkit js

telleroutlook/agentkit-js/mcp-server

Code-mode MCP server: collapses user-defined tools into code execution plus docs search, sandboxed in node:vm, WASM or remote microVMs.

LocalAccount neededTypeScript

Sandbox as a Service

fstandhartinger/sandbox-as-a-service-mcp

Dedicated Linux VM sandboxes for untrusted, model-generated code: run commands, move files, expose a preview URL and destroy the VM.

LocalAccount neededTypeScript