MailSharks
inside your AI

How to connect

The server address is https://mcp.mailsharks.org. The rest depends on the client, but it is the same everywhere: you add the address, the client opens a browser, you sign in to MailSharks and press "Allow".

• Claude — Settings → Connectors → add a custom one, paste the address.
• ChatGPT — connectors in settings, the same address.
• Your own agent — any MCP client with streamable HTTP and OAuth; client registration happens on its own.

No keys to copy: access is granted by signing in to the app itself and is tied to your mailbox.

What the AI can do

• Find a list by name — "the campaign to July clients" picks the right sheet out of the connected ones.
• Write and save a message — with {{name}} and any column of the sheet.
• Start a campaign — with a daily limit, a schedule, A/B testing and follow-ups.
• Show how it goes — opens, clicks, replies, variant comparison.
• Keep suppression lists — add or remove an address.

What it will not do

A campaign never goes out on the model's decision alone. It must first prepare the campaign and get a summary — how many addresses, what subject, how many days it takes — and show it to you. Messages are sent only on a second step, after you agree. That is a rule of the server, not the client's good manners: in autonomous mode an assistant will not ask for permission, and the campaign still will not go out.

• Does not spend your quota silently — the summary shows what is left today and how long the whole list takes.
• Does not hand over your list — recipient addresses reach the model masked, in full only if you ask.
• Does not touch money — paying for the plan, disconnecting Google and deleting the account stay in the app.

The list of connected clients and the "revoke" button live in the app, under Settings → Connected AI clients. A revoked connection stops working immediately.

Next: all features, HTTP API and pricing.