substack-mcp

MCP server for Substack — read posts, manage drafts, and upload images. Safe by design: cannot publish or delete.

→ conorbronsdon/substack-mcp · listed on glama

Install from

Glama

M8ven verifies MCPs across every public registry — install directly from whichever one you prefer.

// key findings

⚠️

Known vulnerabilities in dependencies: 3 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

✅

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_SESSION_TOKEN

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.

configSUBSTACK_PUBLICATION_URL— "": "https://yourblog.substack.com",

🔐 secretSUBSTACK_SESSION_TOKEN— "": "your-session-token",

configSUBSTACK_USER_ID— "": "your-user-id"

// 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 6 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/conorbronsdon-substack-mcp-gjfx36)](https://m8ven.ai/mcp/conorbronsdon-substack-mcp-gjfx36)

commit: 283f37e30d794ba80836b5a6d139d394faa1bd5a

code hash: c2d986c7da9c3abc2f1e3a227fbb6ad2b1afabece76f5fefa43fc44f4fdf0def

verified: 4/11/2026, 2:40:34 PM

view raw JSON →