MCP server for Substack's official Publisher API
MCP server for Substack's official Publisher API
The first MCP server for Substack's official Publisher API. Query post analytics, subscriber counts, and publication data directly from Claude, Cursor, or any MCP client.
node --version; install from nodejs.org if missing. - Substack Publisher API key. Generate one from your publication's Substack dashboard. If you don't see a Publisher API option there, it may not be enabled for your publication yet; see the Publisher API docs for availability.Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| list_publications | List configured publications |
| list_posts | List published posts |
| search_posts | Full-text search across published posts |
| get_post | Get a post and its body by URL slug |
| get_post_stats | Get engagement stats for a post |
| get_subscriber_counts | Get daily subscriber counts by type |
| get_subscriber | Look up a subscriber by email |
{
"mcpServers": {
"substack": {
"command": "node",
"args": [
"/path/to/substack-publisher-mcp/dist/index.js"
],
"env": {
"SUBSTACK_API_KEY": "YOUR_SUBSTACK_API_KEY"
}
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
node --version; install from nodejs.org if missing. - Substack Publisher API key. Generate one from your publication's Substack dashboard. If you don't see a Publisher API option there, it may not be enabled for your publication yet; see the Publisher API docs for availability.| Variable | Description | Required |
|---|---|---|
| SUBSTACK_API_KEY | Declared in the maintainer’s client configuration. | Check documentation |
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