substack-mcp

Enables searching, filtering, and exporting Substack blog posts via MCP tools, with full-text search, caching, and citation generation.

→ andersschaffner/substack-mcp · listed on glama

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// key findings

⚠️

Known vulnerabilities in dependencies: 2 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.

// required environment variables

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

configCACHE_TTL_MS— Cache time-to-live in milliseconds (default: 1800000 = 30 minutes)

configSUBSTACK_FEED_URL— "": "https://fejl40.substack.com/feed"

// 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 3 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/andersschaffner-substack-mcp-cyr2rv)](https://m8ven.ai/mcp/andersschaffner-substack-mcp-cyr2rv)

commit: ad55484c036332c7ee9411b750c0f25d93b96539

code hash: 0c09c8e63e26b0e9d109e6370a4b7375ed8e420bb303bfc14dd527b3263072b1

verified: 6/21/2026, 10:24:39 AM

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