No moat. Still in business.
Software directory for those who don’t want to rebuild, own the updates, the bugs, the support.
1 product
What it does is Newsletters ×Works with is python or github or sqlite or cursor or opencode or vs code ×Clear all
- API Substack
An unofficial API, CLI and MCP server that lets Substack writers draft, schedule and publish posts outside the editor.
Since 2026
Subscription · Newsletters · Creators and writers