substack-publisher-mcp

MCP server for Substack's official Publisher API that enables querying post analytics, subscriber counts, and publication data through natural language from MCP clients.

→ dkships/substack-publisher-mcp · 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.

🔐

You'll be asked for 1 credential: SUBSTACK_API_KEY

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// required environment variables

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

🔐 secretSUBSTACK_API_KEY— "": "your-api-key-here"

// 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 5 concrete improvements 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/dkships-substack-publisher-mcp-118n2x)](https://m8ven.ai/mcp/dkships-substack-publisher-mcp-118n2x)

commit: 47def30a0ae36fa0964bac66ff1965d4fdb59678

code hash: 7342176891c595764a24d51cee8ee407a54645d822910292dc366252e8ad3c44

verified: 6/15/2026, 12:48:28 PM

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