Substack MCP server.Connect it to your agent.

Substack has no public API for writers. Sideflap lets your agent create drafts and read your stats, while publishing stays your call.

Request early access →Request another app

Category: Publishing
Status: Planned
Risk level: medium

What your agent can do.Typed tools, over MCP and REST.

substack.list_posts
List published posts and drafts.
substack.create_draft
Create a draft post from text.
substack.update_draft
Edit an existing draft.
substack.get_stats
Read views, opens and subscriber counts per post.
substack.publish_post
Publish a draft. Waits for your approval.

Planned tool list. It can change while the integration is built.

Risk level

Medium. Reading is automatic. Anything that changes data or reaches other people waits for your approval.

Sideflap works in your own signed-in session at a calm pace, stops at a CAPTCHA and asks you, and logs every action. Whether Substack allows this depends on its terms, so that part is your call.

Works with

Claude
Claude Code
ChatGPT
Cursor
n8n
VS Code
Windsurf
Zed
Raycast
any MCP client

Planned integration. Not available yet.