MCP

Connect an AI tool.

Last updated 2026-11-08. Written by Email Signature Gen.

Server address: https://emailsignaturegen.com/api/mcp

Core address: https://emailsignaturegen.com/api/mcp/core. The core address has the 26 tools for rolling out a team's email signatures: organizations, plan, brand kit, contacts, layouts, email signatures and install links. Use it in apps that limit how many tools they load, such as Cursor.

  1. Add the server address in your app. The steps for each app are below.
  2. Sign in when your browser opens, or create an account there. The app never sees your password.
  3. Check what the app asks to do, then allow it. It acts with your role in each organization you belong to.
  4. Disconnect it any time from Connected apps in the dashboard.

Steps for each app

Claude Code

  1. Run:claude mcp add --transport http email-signature-gen https://emailsignaturegen.com/api/mcp
  2. Run:claude mcp login email-signature-genOr type /mcp in Claude Code, pick email-signature-gen, and choose Authenticate.
  3. Sign in in the browser and allow it.

Codex

  1. Run:codex mcp add email-signature-gen --url https://emailsignaturegen.com/api/mcp/core
  2. Codex opens the browser to sign in. If it doesn't, run:codex mcp login email-signature-gen

Cursor

  1. Add this to ~/.cursor/mcp.json:{ "mcpServers": { "email-signature-gen": { "url": "https://emailsignaturegen.com/api/mcp/core" } } }
  2. Sign in from the server's entry in Cursor's MCP settings, or run:cursor-agent mcp login email-signature-gen

Hermes

  1. Run:hermes mcp add email-signature-gen --url https://emailsignaturegen.com/api/mcp --auth oauth
  2. Sign in in the browser, then choose which tools to turn on. tools.include in the server's config keeps the list short.

Other apps: add the server address wherever the app adds a remote MCP server over streamable HTTP. Sign-in uses OAuth in your browser. There is no API key or token to copy.

What it can do

On a first connection the app can:

  • See the people in your organizations who have email signatures
  • Add, edit, delete, and import those people
  • See email signatures, layouts, the brand kit, and install status
  • Create, edit, and delete email signatures, layouts, install links, and the brand kit
  • See banner images and campaigns

These stay off unless you tick them on the sign-in page:

  • Add banner images and schedule, publish, or pause campaigns
  • Invite teammates, change their roles, and remove them
  • Create and rename organizations and set up their web address

To add one later, connect the app again and tick it. Connected apps cannot change billing, delete or hand off an organization, or set someone's password.

Ask it to design a layout. It saves the design to Your layouts after a check that it works in email, and only your organization can see it. Then it can make email signatures with it, or you can pick it in the dashboard.

Disconnect an app

  1. Open Connected apps in the dashboard.
  2. Click Revoke next to the app. It stops working at once, and its sign-in can't be refreshed.

Privacy and help

What a connected app receives is in the privacy policy, and what you agree to is in the terms. Help connecting an app: support@emailsignaturegen.com. Questions about what a connected app can see, or about your data: privacy@emailsignaturegen.com.