An astronaut overseeing a futuristic data hub
Download PDFMarkdown Version

Connect Substack to ChatGPT, Claude and Gemini

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Run your entire publication from your AI chat interface.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

Waiting for input…

Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

A futuristic MCP client docking bay
V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 6 capabilities

We ship only the actions that matter.

Capability set01 / 02

01-03

3 capabilities in this set.

Part of 6 available through Substack.

  1. 01

    Get post

    Retrieves the full content and details of a specific post.

  2. 02

    Get post stats

    Fetches engagement metrics like open and click rates for a single post.

  3. 03

    Get publication info

    Provides metadata and settings for your Substack publication.

Capability set02 / 02

04-06

3 capabilities in this set.

Part of 6 available through Substack.

  1. 04

    List posts

    Returns a list of your most recent newsletter posts.

  2. 05

    Get leaderboard

    Accesses top performer data to see which content is driving the most interest.

  3. 06

    List subscribers

    Generates a list of your current newsletter subscribers.

Real work

What teams actually run

01

Rapid Drafting

Ask your agent to write a rough draft for a new topic and save it immediately.

02

Performance Audits

Check which posts are performing best by requesting leaderboard data.

03

Audience Monitoring

Get a quick update on subscriber growth and churn rates.

04

Metadata Updates

Change publication categories or custom domain info through your agent.

Automate a task

Put Substack to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

Substack works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

ClaudeClaudeChatGPTChatGPTGeminiGeminiPerplexityPerplexityGrokGrokMicrosoft CopilotMicrosoft CopilotCursorCursorVS CodeVS CodeWindsurfWindsurfJetBrainsJetBrainsClineClineLangChainLangChainVercel AI SDKVercel AI SDKLovableLovableZ.aiZ.aiRaycastRaycastQwen CodeQwen CodeKimi CodeKimi CodeLe ChatLe Chat

Building your own app? The connector is yours to use.

You don't need a client to put Substack to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

812ms average. Fast in production.

Substack is checked daily against the live service.

Daily averagePeak 1130ms
Oct 3Today
Fastest day
717ms
Slowest day
1130ms
14-day trend
Slowing+6%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 6 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Substack, so you can see the experience inside your AI.

It does not authenticate your account with Substack. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Substack Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_YpBi8hRnrhTPJHoHKTYYVNARu6MIIFCBfFP8XLRm/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — Substack capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "substack-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_YpBi8hRnrhTPJHoHKTYYVNARu6MIIFCBfFP8XLRm/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up Substack in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Substack owners hand off.

This MCP is built for creators who want to minimize time spent in administrative dashboards.

  • 01

    Newsletter Creators

    They use the agent to draft and schedule content without switching to the Substack editor.

  • 02

    Content Marketers

    They track audience growth and performance metrics through a chat interface.

  • 03

    Thought Leaders

    They manage multiple publications from a single conversational workflow.

FAQ

Questions Substack owners ask.

  • 01

    How do I connect my Substack to my AI client?

    You need to get an API token from your Substack publication settings under the Publication API section. Once you have that, you can connect via Vinkius to use the MCP in any compatible client.

  • 02

    Can I actually publish posts through the AI?

    The MCP allows you to create and manage drafts. You can ask your agent to draft content, and once it is ready, you can manage the final publication steps.

  • 03

    What kind of data can my agent see?

    Your agent can access subscriber counts, growth trends, post engagement metrics like open rates, and publication metadata.

  • 04

    Do I still need to use the Substack website?

    You can perform most management, drafting, and analytical tasks through your AI client, which reduces the need to use the standard Substack editor.

  • 05

    Is this compatible with Cursor or VS Code?

    Yes, this MCP works with any MCP-compatible client, including Cursor, VS Code, Windsurf, and Claude.

  • 06

    How do I get my Substack API token?

    Log in to your Substack publication at yourdomain.substack.com. Navigate to Settings from the left sidebar. Look for the Publication API or Developer section. Generate an API token and copy it. Paste it into the configuration field below. Note: Substack's API is currently in limited availability. check Substack's developer page for the latest access information.

  • 07

    Can I draft and schedule newsletter posts?

    Yes. Your AI agent can create draft posts with title, body content, subtitle, and metadata. You can then schedule them for a specific date and time. managing your entire editorial calendar conversationally.

  • 08

    Can I track how many subscribers I gained this month?

    Yes. Ask your AI agent for subscriber growth metrics and get total subscribers, new subscribers this month, churn rate, and free vs. paid subscriber breakdown.

  • 09

    Does this work with paid Substack publications?

    Yes. The integration supports both free and paid publications. You can manage paywalled content, check paid subscriber counts, and analyze revenue metrics through your AI agent.

Explore

More in Marketing Automation

Suggestions

Connect Substack to Claude, Cursor, ChatGPT & more