Heroku MCP Code Execution - Python
About
MCP (model context protocol) server for running python code.
Details
- License
- CC0-1.0
Explore
- Executes Python code with optional pip package installation
- Supports Streamable HTTP, SSE, and STDIO transports
- Deploys to Heroku via one-click or manual setup
- API key authentication for access control
- Configurable STDIO-only mode for code execution isolation
Setting up with Highlight
This MCP is not yet compatible with Highlight’s one-click setup. However, you can still use it with Highlight by following these steps:
- Download and install Highlight from highlightai.com/download
- Navigate to the plugins tab and select "Add Custom Plugin"
-
Configure the plugin with the settings below
Plugin Name
Heroku MCP Code Execution - PythonCommand (node, npx, python, etc.)Please refer to the README for specific instructions on how to obtain API keys or other required environment variables.
- Enable "Start Automatically" if you want the plugin to start when Highlight launches
From the repository
Set Required Environment Variables from Heroku CLI
Instead of manually setting each variable, use the Heroku CLI to pull the correct values.```bash
export APP_NAME=<your-heroku-app-name>
heroku create $APP_NAME
heroku buildpacks:set heroku/python -a $APP_NAME
Claude Desktop / Cursor
Paste into your MCP client config file to install this server.
{
"mcpServers": {
"heroku mcp code execution - python": {
"mcp-code-exec-python": {
"command": "python",
"args": [
"example_clients/streamable_http_client.py",
"mcp",
"call_tool",
"--args",
"{"
]
}
}
}
}McpServers
{
"mcp-code-exec-python": {
"command": "python",
"args": [
"example_clients/streamable_http_client.py",
"mcp",
"call_tool",
"--args",
"{"
]
}
}- Heroku MCP Code Execution - Python
- Automatic Deployment
- Manual Deployment
- Set Required Environment Variables from Heroku CLI
- Local Testing
- Local Streamable HTTP, SSE
- Local Streamable HTTP, SSE - Example Requests
- Local STDIO
- 1. Local STDIO - Example Python STDIO Client
- 2. Local STDIO - Direct Calls
- Remote Testing
- Remote Streamable HTTP, SSE
- Remote STDIO
- 1. Remote STDIO - Example Python STDIO Client, Running On-Server
- 2. Remote STDIO - Direct Calls to One-Off Dyno
- 3. Coming Soon - Heroku MCP Gateway!
Automatic Deployment
Manual Deployment
Set Required Environment Variables from Heroku CLI
Instead of manually setting each variable, use the Heroku CLI to pull the correct values.```bash
export APP_NAME=<your-heroku-app-name>
heroku create $APP_NAME
heroku buildpacks:set heroku/python -a $APP_NAME
Sign in to leave a review
Use Google, GitHub, or an email account so ratings stay tied to real people.
No reviews posted yet.
