The Posting Substack API
Details
- External ID
- 49084617
- Source
- HN
- Company
- —
- Product
- The Posting Substack API
- Website domain
- apisubstack.com
- Launched
- July 28, 2026
- Cohort
- —
- Upvotes
- 6
- Upvotes percentile
- 0.2873357228195938
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Description
Substack does not provide a native public API for publishing posts. But authors who want to draft, publish, and schedule from AI agents (Cursor, Claude, and other MCP hosts) still need a way out. This is the MCP server to publish to Substack via any agent.
Enrichment
- Theme
- database infrastructure and developer tools
- Vertical
- Media & entertainment
- Function
- Dev tools
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- substack api for programmatic access
- Manually corrected
- False
Could you build this?
Yes Reverse-engineering Substack's internal endpoints with session cookies to build an MCP server wrapper is a basic API scraping and tooling task.
Discussion
No comments on this launch.
Competitors
Other products that read as similar to this one — 37 launches clear the similarity bar, closest 8 shown.
Attention rank: #34 of 38 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 174 days after the earliest competitor.
- API to MCP · ph · 2026-06-19 · 195 upvotes · similarity 0.45
- blotato-dev.github.io · github · 2026-09-21 · 10 upvotes · similarity 0.43
- PostSider · ph · 2026-09-21 · 84 upvotes · similarity 0.43
- Socialync · ph · 2026-09-15 · 2 upvotes · similarity 0.42
- Buffer API · ph · 2026-05-28 · 220 upvotes · similarity 0.41
- PublishRoute · ph · 2026-09-28 · 1 upvotes · similarity 0.37
- PostQuest · ph · 2026-09-30 · 3 upvotes · similarity 0.37
- PostOnce.co · ph · 2026-09-21 · 1 upvotes · similarity 0.37
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a dev tools tool for Sales yet.