The Marketing Vault

Write offers, sales pages, emails & ads from your saved business profile and brand voice, plus traffic plans, referral partner research & sales call frameworks.

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AI Assistants · MCP

Your AI, with your business context built in

Connect The Marketing Vault to Claude, ChatGPT, Perplexity, Grok, Gemini CLI, Cursor or Claude Code. Your assistant writes with your real customer profile and brand voice instead of generic guesses.

Now listed in Claude's connector directory

Try 3 MCP generations

Try up to 3 successful MCP generations, once per account. Every result saves to your Library, where it remains available after the trial. Continued generation is included from Consultant upward or with a monthly/annual subscription. Existing paid allowances stay unchanged.

See what changes

Step 1 - Copy your server URL

One URL works in every supported app. Just paste it and sign in.

https://agsuleyeonapmldynizb.supabase.co/functions/v1/mcp Copy server URL

That long address is our secure cloud backend - it looks technical, but it is the official Marketing Vault endpoint, and the URL alone grants nothing. When you connect, you sign in with your own account on a secure consent screen and approve access. Your browser may briefly show our backend domain during sign-in - that is expected. It is the same infrastructure that powers your dashboard.

Step 2

Add a custom connector in your AI app

Each app calls it something slightly different - "Add connector", "Custom connector" or "MCP server". Paste the URL you copied.

Step 3

Sign in and approve

Log in with your Marketing Vault account and click Approve. Every request runs as you, so the assistant only ever sees your own data.

Step-by-step setup for your app

Every app is slightly different. Find yours below and follow the steps exactly - it takes about a minute.

Claude

Web, desktop & mobile - works on every plan, including Free

Settings → Customize → Connectors → Add custom connector

Now in Claude's connector directory

Install in one click from the directory, then sign in and approve.

Add to Claude

Or set it up manually:

  1. 1Open Claude and go to Settings → Customize → Connectors (or use the button below).
  2. 2Click "Add custom connector".
  3. 3Name it "The Marketing Vault" and paste the server URL from Step 1.
  4. 4Leave the defaults: Authentication → "Always required", OAuth client → "No client ID - register one automatically", Transport → "Streamable HTTP".
  5. 5Click Add. Claude opens a sign-in window - log in to your Marketing Vault account and click Approve.
  6. 6Test it: ask Claude "Use The Marketing Vault to list my businesses".

Free accounts can add one custom connector; paid plans allow more. On mobile you can use connectors you already added on web or desktop.

Open Claude connectors

ChatGPT

Business, Enterprise & Edu plans (beta) with Developer mode on

Settings → Apps & Connectors → Advanced → Developer mode

  1. 1Open ChatGPT on the web and go to Settings → Apps & Connectors.
  2. 2Under Advanced, turn on Developer mode (this is what exposes custom MCP connectors).
  3. 3Back on Apps & Connectors, click "Create" / "Add connector".
  4. 4Name it "The Marketing Vault", paste the server URL, and set Authentication to OAuth.
  5. 5Click Create, sign in to your Marketing Vault account, and approve access.
  6. 6In a new chat, open the "+" menu, confirm The Marketing Vault is enabled, then ask it to list your businesses.

Custom connectors need a Business, Enterprise or Edu plan while the feature is in beta. If a connector disappears from your list (a known ChatGPT bug), re-add it with the same URL.

Open ChatGPT connectors

Perplexity

Pro, Max & Enterprise plans

Computer → Connectors → Custom Remote Connector

  1. 1Open Perplexity and switch to Computer mode.
  2. 2Go to Connectors and choose Add connector → Custom Remote Connector.
  3. 3Name it "The Marketing Vault" and paste the server URL.
  4. 4Select the HTTP / Streamable HTTP transport if asked, then save.
  5. 5Complete the sign-in and click Approve on the consent screen.
  6. 6Ask: "Using The Marketing Vault, load my customer profile".

Custom remote connectors require a Pro, Max or Enterprise plan.

Open Perplexity connectors

Grok (xAI)

Available to all Grok users

grok.com/connectors → New Connector → Custom

  1. 1Go to grok.com/connectors and click New Connector → Custom.
  2. 2Name it "The Marketing Vault" and paste the server URL.
  3. 3Save, then complete the sign-in and approve access.
  4. 4Enable the connector in the chat composer before asking Grok to use it.

On Grok Business or Enterprise, a team admin has to enable the connector in the xAI cloud console before members can use it.

Open Grok connectors

Google Gemini

Gemini CLI setup below. Google Connected Apps availability depends on Google's rollout and approval.

Gemini Developer Mode or ~/.gemini/settings.json

  1. 1For consumer Gemini testing, follow Google's Developer Mode guide below and add the custom MCP URL where available. Sign in and approve when prompted.
  2. 2Install Gemini CLI, then open (or create) ~/.gemini/settings.json.
  3. 3Add the mcpServers block below and save the file.
  4. 4Restart the CLI. The first tool call opens a browser window for sign-in and approval.
  5. 5Verify with the "/mcp" command inside the CLI - it should list The Marketing Vault tools.

~/.gemini/settings.json

{
  "mcpServers": {
    "the-marketing-vault": {
      "httpUrl": "https://agsuleyeonapmldynizb.supabase.co/functions/v1/mcp"
    }
  }
}

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Developer Mode is for testing and depends on Google's availability and account requirements. Public Google Connected Apps availability requires registration and review. The Marketing Vault's approval, public listing and discoverability are not confirmed.

Google's Developer Mode setup

Cursor

For developers - also available as a marketplace plugin

Cursor Settings → Tools & Integrations → MCP

  1. 1Open Cursor Settings → Tools & Integrations → MCP → Add custom MCP.
  2. 2Cursor opens mcp.json - add the block below (or install our Cursor marketplace plugin, which does this for you).
  3. 3Save the file, then click the login prompt Cursor shows next to the server.
  4. 4Sign in, approve, and confirm the tools appear with a green dot in the MCP list.

mcp.json

{
  "mcpServers": {
    "the-marketing-vault": {
      "url": "https://agsuleyeonapmldynizb.supabase.co/functions/v1/mcp"
    }
  }
}

Copy

Open Cursor settings

Claude Code & other CLIs

For developers working in the terminal

Terminal

  1. 1Run the command below in your project folder.
  2. 2Run "claude mcp list" to confirm the server is registered.
  3. 3The first tool call prompts you to authenticate in the browser - sign in and approve.
  4. 4VS Code (GitHub Copilot) and Windsurf use the same mcp.json format shown in the Cursor card.

Terminal

claude mcp add --transport http the-marketing-vault https://agsuleyeonapmldynizb.supabase.co/functions/v1/mcp

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See the full guide

What your assistant can do once connected

  • List your businesses and pick the one you are working on
  • Load your saved Ideal Customer Profile and brand voice before writing
  • Create emails, ads, offers and page copy by task name - 3 trial generations or your included paid allowance
  • Successful generations save automatically; read your Library even after the trial ends

Read the full setup guide with screenshots and troubleshooting

Stuck? Contact support and we will walk you through it.

The Marketing Vault

A product of Be Known, LLC in Knoxville, TN.

mail@beknownonline.com

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