Heroku MCP Code Execution - Python✓ Official

An MCP server for securely executing Python code, supporting STDIO, Streamable HTTP, and SSE transports, with easy deployment on Heroku.

→ heroku/mcp-code-exec-python · listed on glama

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// key findings

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configPORT

configWEB_CONCURRENCY— heroku config:set =1 -a $APP_NAME

configSTDIO_MODE_ONLY— heroku config:set =<true/false> -a $APP_NAME

configUSE_TEMP_DIR

configDYNO

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 1 concrete improvement we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/heroku-mcp-code-exec-python-qkuk5u)](https://m8ven.ai/mcp/heroku-mcp-code-exec-python-qkuk5u)

commit: 341f7c54f8816bed01b00919c250199b99c51478

code hash: 0fb7950b830a877ca7da65505cb150dc2a0adf0957dc40acfc69f1e6da935abc

verified: 6/15/2026, 3:12:07 PM

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