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substack-publisher-mcp

substack-publisher-mcp is an MCP server, listed under mcp tooling. It reaches substack. It needs SUBSTACK_API_KEY to authenticate. Its repository has 6 GitHub stars and is licensed under MIT; we last read it on 2026-10-22.

This server connects to Substack's official Publisher API to query posts, analytics, and subscribers from Claude, Cursor, or any MCP client.

Install

MCP servers are packaged differently from each other -- some run via npx, some as a Docker image, some as a plain script you clone and run. substack-publisher-mcp’s own README did not state one plainly enough for this page to quote it rather than guess, so it will not guess. The repository below states it.

What it reaches, and what it needs

Reaches
substack
Credential
SUBSTACK_API_KEY

What it connects to

Supported in
Cursor

Unverified means a mention in the server’s own description, not a citation. A wrong claim here costs nothing to correct and nothing to trust yet.

Maintenance

Stars
6
State
listed
Licence
MIT
From the repository

MCP server for Substack's official Publisher API — query posts, analytics, and subscribers from Claude, Cursor, or any MCP client

substack-publisher-mcp compared with similar servers

substack-publisher-mcp compared with the closest alternatives, by services reached, credentials, stars, last update and licence
ServerReachesNeedsStarsLast updateLicence
substack-publisher-mcp (this page)substackSUBSTACK_API_KEY62026-10-21MIT
tradingview-mcpmarketauxMARKETAUX_API_TOKEN5,0992026-10-21MIT
mcphub—ADMIN_PASSWORD2,5802026-10-24Apache-2.0
mcp-remote—AUTH_TOKEN, MCP_CLIENT_SECRET, MCP_REMOTE_CLIENT_SECRET1,6522026-10-20MIT
mcp-searxng—None listed1,3222026-10-20MIT
tuui—None listed1,1592026-05-14Apache-2.0

Ranked by services in common with substack-publisher-mcp, then by stars. Figures are from each repository when we last read it.

Common questions about substack-publisher-mcp

What does substack-publisher-mcp do?
This server connects to Substack's official Publisher API to query posts, analytics, and subscribers from Claude, Cursor, or any MCP client.
How do I install substack-publisher-mcp?
Its README did not state an install command plainly enough for us to quote one, so we do not guess. The repository has the instructions: https://github.com/dkships/substack-publisher-mcp
What does substack-publisher-mcp connect to, and what does it need?
It reaches substack. The credentials we found in its source are SUBSTACK_API_KEY.
Which AI clients can use substack-publisher-mcp?
Its own description mentions Cursor. That is a mention in its description, not a test we ran.
Is substack-publisher-mcp official and is it maintained?
We found nothing naming it as a vendor’s official server. Its repository has 6 GitHub stars and its state in our directory is listed. Its last commit we recorded was on 2026-10-21.
What licence does substack-publisher-mcp use?
The repository declares the MIT licence.

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