substack-mcp

Name: substack-mcp Review
Item: substack-mcp
Rating: 2.8
Author: Aaron Matthews

Connector Data & Analytics Usable

Works inClaude Code Claude Cowork Claude Chat

Usable Scanned — metadata only

Enables engineering leaders running technical newsletters to programmatically manage content workflows, track subscriber engagement metrics, and automate pub…

MCP server for Substack: rich drafts, Notes, analytics, and consented subscriber management across publications. Long-form posts stay draft-only; Notes publish immediately. Used regularly by multiple newsletters, includes a CLI.

Ask Claude to analyze subscriber engagement metrics across your Substack publications to identify top-performing content.
Generate draft posts in Claude, then publish them directly to your Substack Notes for immediate distribution.
Automate management of subscriber lists and preferences across multiple Substack publications from one interface.

44 starsMIT (commercial OK)FreeNo code needed

Usable rating — This tool is functional but has notable gaps. Review the evaluation notes below before deploying.

Why it matters

Enables engineering leaders running technical newsletters to programmatically manage content workflows, track subscriber engagement metrics, and automate publishing—reducing manual overhead and improving content consistency across publications.

Best for

Technical newsletter operators and engineering communicators managing multiple Substack publications with analytics-driven content strategies.

Works in

Claude Code Claude Cowork Claude Chat

Source

https://github.com/conorbronsdon/substack-mcp

By conorbronsdon

How to Get It

Option 1: Claude Desktop AppOpen the Customize panel in the sidebar → browse connectors → search and add. Works in Claude Code, Claude Cowork, and Claude Chat.

Option 2: Paste into Claude CodeCopy the command below and paste it into a Claude Code conversation. Claude will run it for you.

Command

claude mcp add substack-mcp -- npx -y substack-mcp

Tip: Paste this into a Claude Code conversation. Verify command matches your Claude Code version.

Auto-generated from the tool's public listing — not hands-on verified. Cross-check against the source repo's README before running.

First thing to try

Once it’s connected, paste this into Claude:

Analyze subscriber engagement metrics across my Substack publications to identify top-performing content

CostFree

Trust Signals Auto-scanned

Stars44Contributors7Last updated2026-10-24LicenseMIT (OK for commercial use)Known CVEsNone foundSources: GitHub Advisory Database + OSV.dev · Scanned 2026-10-25 · scanner v1

Data & Access

Data processingPrompts sent to Anthropic API. Enterprise/Team plans exclude training.

Community Pulse Emerging

Discussed on Hacker News

Every Substack, Mapped — Hacker News · 3 pts

1 mentions across 1 sources

Reviewer notes

Auto-scanned review. These are observations, not a security certification.

Scored from trust signals (evidence-eval-v1): 43 GitHub stars; contributors unknown; last commit 0d ago; license MIT.

Things to check

Scanned, not hands-on tested — this entry was auto-scanned from public metadata (GitHub metrics, license, security flags). No reviewer has run it, and no tool-specific limitations have been documented yet.

How to evaluate tools before deploying →

Data shown here comes from public APIs and automated scanning. Reviewer notes reflect one person's experience. This is not a security certification or legal recommendation. Always evaluate tools according to your own organization's policies.

Evaluation Scores

Evaluation

Ease of Use

3/5

Versatility

2/5

Reliability

3/5

Security

3/5

Overall score2.75 / 5.00 UsableEvaluatedOct 2026

Scored from trust signals (evidence-eval-v1): 43 GitHub stars; contributors unknown; last commit 0d ago; license MIT.

← Back to the Claude Observatory