substack-mcp-plus and substack-publisher-mcp
The first is an unofficial reverse-engineered client with browser automation, while the second is an official API wrapper—they're competitors offering overlapping Substack integration, though the official one may have better long-term reliability and the unofficial one may offer broader feature coverage.
About substack-mcp-plus
ty13r/substack-mcp-plus
The most advanced Substack MCP server. 12 tools, browser auth, rich text support. Not affiliated with Substack Inc.
Implements the unofficial [python-substack](https://github.com/ma2za/python-substack) library to reverse-engineer Substack's private API endpoints, with browser-based authentication handling CAPTCHA challenges and encrypted credential storage. Runs as an MCP-compatible server that auto-detects Python environments and integrates directly into Claude Desktop, enabling AI-assisted content creation with full markdown/HTML rendering and bulk post operations.
About substack-publisher-mcp
dkships/substack-publisher-mcp
MCP server for Substack's official Publisher API — query posts, analytics, and subscribers from Claude, Cursor, or any MCP client
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