Substack API
News & MediaAccess Substack public data through one AllAPI key — 10 endpoints across the Substack surface. No Substack account, no credentials, no scraping stack — one anonymous request returns real data or a documented honest error, never fabricated.
| Method | Endpoint | Operation |
|---|---|---|
| POST | /api/substack/archive | Archive |
| POST | /api/substack/author/publications | Author publications |
| POST | /api/substack/comments | Comments |
| POST | /api/substack/discover | Discover |
| POST | /api/substack/post | Post |
| POST | /api/substack/post/search | Post search |
| POST | /api/substack/posts | Posts |
| POST | /api/substack/profile/posts | Profile posts |
| POST | /api/substack/publication | Publication |
| POST | /api/substack/user/public_profile | User public profile |
Call the Substack API in one line
Free tier — 200 credits/month, no card. One key works across all 468 platforms, 39 MCP tools and 48 composites.
Get your free key → API reference