Skip to content
InfratoApp
InfratoApp / Resources / MCP servers / substack-mcp

substack-mcp

substack-mcp is an MCP server. It reaches substack. It needs SUBSTACK_PUB_KEVIN_MULDOON_SESSION_TOKEN, SUBSTACK_PUB_SAPERE_SESSION_TOKEN and SUBSTACK_SESSION_TOKEN to authenticate. Its repository has 44 GitHub stars and is licensed under MIT; we last read it on 2026-10-22.

This server connects Substack publications to manage rich drafts, Notes, analytics, and consented subscriber lists. Long-form posts remain in draft mode while Notes are published immediately. It is used by multiple newsletters and includes a command-line interface.

Install

Read from substack-mcp’s own README, close to verbatim -- not written by us, and not guessed.

npm install @conorbronsdon/substack-mcp playwright

What it reaches, and what it needs

Reaches
substack
Credential
SUBSTACK_PUB_KEVIN_MULDOON_SESSION_TOKEN, SUBSTACK_PUB_SAPERE_SESSION_TOKEN, SUBSTACK_SESSION_TOKEN

Maintenance

Stars
44
State
listed
Licence
MIT
From the repository

MCP server for Substack: rich drafts, Notes, analytics, and consented subscriber management across publications. Long-form posts stay draft-only; Notes publish immediately. Used regularly by multiple newsletters, includes a CLI.

What substack-mcp can do

8 tools documented in its README. An AI client calls these by name.

create_draft
Prepare a new draft for review.
search_posts
No description in the README.
export_draft
No description in the README.
preflight_draft
No description in the README.
plan_draft_update
No description in the README.
update_draft
No description in the README.
create_note
Publish a short-form Note immediately.
create_note_with_link
Publish a short-form Note with a link immediately.

Read from the README; names are kept only if the README contains them.

Common questions about substack-mcp

What does substack-mcp do?
This server connects Substack publications to manage rich drafts, Notes, analytics, and consented subscriber lists. Long-form posts remain in draft mode while Notes are published immediately. It is used by multiple newsletters and includes a command-line interface.
How do I install substack-mcp?
Its own README gives this command: npm install @conorbronsdon/substack-mcp playwright. Run it where your MCP client can launch the server, and check the README for any settings it asks for.
What does substack-mcp connect to, and what does it need?
It reaches substack. The credentials we found in its source are SUBSTACK_PUB_KEVIN_MULDOON_SESSION_TOKEN, SUBSTACK_PUB_SAPERE_SESSION_TOKEN and SUBSTACK_SESSION_TOKEN.
Is substack-mcp official and is it maintained?
We found nothing naming it as a vendor’s official server. Its repository has 44 GitHub stars and its state in our directory is listed. Its last commit we recorded was on 2026-10-18.
What licence does substack-mcp use?
The repository declares the MIT licence.

Learn this on Infrato