Substack MCP Server and API by Cotlet for Claude Code

dev.cotlet/substack

Substack writer newsletter publishing MCP server: create post, schedule post, publish Note.

client:Claude Code transport:streamable-http runtime:pypi

Install Substack MCP Server and API by Cotlet in Claude Code

run in your project directory

claude mcp add --transport http substack https://cotlet.dev/mcp/v1/substack/connect

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs