Substack MCP

Unclaimed

by conorbronsdon

MCP server for Substack — read publication data, manage drafts. Posts are draft-only by design; only short-form Notes publish. Proportionate review as trust infrastructure for agents.

claude-codecontent-creationdeveloper-toolsmcpmcp-serversubstackai-agentsclaudemodel-context-protocoltypescript

Install

$npx --package @conorbronsdon/substack-mcp substack-mcp-login https://yourblog.substack.com

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Tools (14)

create_draft

Create a new draft from markdown (private)

create_note

Publish a Substack Note (short-form, publishes immediately)

create_note_with_link

Publish a Note with a link card attachment (publishes immediately)

get_draft

Get full content of a draft by ID

get_post

Get full content of a published post by ID

get_post_analytics

Get a published post's stats (views, opens, signups, subscribes, reactions) by ID

get_post_comments

Get comments on a published post

get_sections

List your publication's sections (categories) with their IDs

get_subscriber_count

Get your publication's current subscriber count

list_drafts

List draft posts

list_published_posts

List published posts with pagination

list_scheduled_posts

List posts scheduled for future publication (read-only; scheduling stays in Substack's editor)

update_draft

Update an existing draft (unpublished only; private)

upload_image

Upload an image to Substack's CDN — returns a publicly-fetchable (unlisted) URL