Server data from the Official MCP Registry
Substack MCP server: posts are draft-only by design; short-form Notes publish immediately.
About
Substack MCP server: posts are draft-only by design; short-form Notes publish immediately.
Security Report
This is a well-structured MCP server for Substack with appropriate authentication, clear authorization boundaries, and safe-by-design principles. The code demonstrates good security practices: credentials are environment-variable-based (not hardcoded), sensitive operations are properly scoped (long-form posts are draft-only, Notes publish immediately with clear warnings), and error handling is comprehensive. Minor code quality observations exist but do not constitute security vulnerabilities. Supply chain analysis found 3 known vulnerabilities in dependencies (0 critical, 3 high severity). Package verification found 1 issue.
4 files analyzed · 8 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
What You'll Need
Set these up before or after installing:
Environment variable: SUBSTACK_PUBLICATION_URL
Environment variable: SUBSTACK_SESSION_TOKEN
Environment variable: SUBSTACK_USER_ID
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"io-github-conorbronsdon-substack-mcp": {
"env": {
"SUBSTACK_USER_ID": "your-substack-user-id-here",
"SUBSTACK_SESSION_TOKEN": "your-substack-session-token-here",
"SUBSTACK_PUBLICATION_URL": "your-substack-publication-url-here"
},
"args": [
"-y",
"@conorbronsdon/substack-mcp"
],
"command": "npx"
}
}
}Reviews
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