---
title: "MailSenpai MCP server"
url: "https://martechdb.com/vendors/mailsenpai"
markdown_url: "https://martechdb.com/vendors/mailsenpai.md"
api_url: "https://martechdb.com/api/v1/vendors/mailsenpai.com"
updated: "2026-10-05"
---

# MailSenpai MCP server

Yes. MailSenpai publishes an official MCP server at https://mcp.mailsenpai.com/mcp. It's hosted. We last checked it on 7 Oct 2026. MartechDB lists only servers the vendor publishes itself, never community servers.

- Website: [mailsenpai.com](https://mailsenpai.com)
- API access for agents: Plan: Base and above, with API activation as an optional add-on (not on Free), no free access. ([source](https://en.mailsenpai.com/plans/))
- Categories: [Email marketing](https://martechdb.com/categories/email-marketing.md)

## MailSenpai MCP

- Address: https://mcp.mailsenpai.com/mcp
- Runs: Hosted
- Sign-in: Sign-in: see vendor docs (`unknown`)
- Cost to use: Limits: Per minute: 60 reads, 30 stats reads, 30 data edits, 20 campaign edits, 6 imports, 6 deletes, 10 scheduling (60/hour); 3 actions/second overall. ([source](https://mcp.mailsenpai.com/docs), [limits source](https://mcp.mailsenpai.com/rate-limits))
- Official MCP Registry: not listed
- Documentation: https://mcp.mailsenpai.com/docs
- How we know it's official: The vendor's own documentation
- First seen: 2026-10-05
- Last checked: 2026-10-07
- Recent checks: 2 of the last 2 reachable

### What it can do

Tools: not known by name. The server needs sign-in before it lists them, and the vendor's documentation doesn't name them, so this is what it says the server can do ([source](https://mcp.mailsenpai.com/docs)), read on 2026-10-07. It may be out of date.

- See permissions, plan limits and visible lists (read-only)
- List, create, edit and copy lists and custom fields
- Create segments with conditions and read their subscribers
- Search, add, update, unsubscribe; imports within plan limits
- List, search, create and update templates
- Draft, schedule, pause; sending only with explicit confirmation
- Campaign statistics and recorded bounces (read-only)
- List and, if your plan allows it, create transactional emails

### Connect it

Claude Code:

```sh
claude mcp add --transport http mailsenpai https://mcp.mailsenpai.com/mcp
```

- Add to Cursor: <cursor://anysphere.cursor-deeplink/mcp/install?name=mailsenpai&config=eyJ1cmwiOiJodHRwczovL21jcC5tYWlsc2VucGFpLmNvbS9tY3AifQ%3D%3D>
- Add to VS Code: <vscode:mcp/install?%7B%22name%22%3A%22mailsenpai%22%2C%22type%22%3A%22http%22%2C%22url%22%3A%22https%3A%2F%2Fmcp.mailsenpai.com%2Fmcp%22%7D>
- Claude.ai and Claude Desktop: Customize, Connectors, "+", Add custom connector, then paste https://mcp.mailsenpai.com/mcp
- ChatGPT: Settings, Apps, Advanced settings, turn on Developer mode, Create, then paste https://mcp.mailsenpai.com/mcp (this usually works only with servers that use self-serve sign-in or none)

JSON for Cursor, Windsurf and other clients that connect to hosted servers:

```json
{
    "mcpServers": {
        "mailsenpai": {
            "type": "http",
            "url": "https://mcp.mailsenpai.com/mcp"
        }
    }
}
```

## Questions

### Does MailSenpai have an official MCP server?

Yes. MailSenpai publishes its MCP server itself. MailSenpai's own documentation describes it. MartechDB only lists servers a vendor publishes, never community copies.

### What is the MailSenpai MCP server URL?

The address is https://mcp.mailsenpai.com/mcp.

### How do I connect MailSenpai MCP to Claude, ChatGPT or Cursor?

In Claude, add https://mcp.mailsenpai.com/mcp as a custom connector (Customize, Connectors, Add custom connector). In Cursor, use the Add to Cursor link on MartechDB's page, or paste the JSON settings into your mcp.json. In Claude Code, run: claude mcp add --transport http mailsenpai https://mcp.mailsenpai.com/mcp

### Is the MailSenpai MCP server in the official MCP Registry?

No. MailSenpai hasn't published it to the official MCP Registry.

### Is the MailSenpai MCP server working?

Yes. It answered our most recent check. We last checked it on 7 Oct 2026.

## Change history

- 2026-10-05: MailSenpai MCP added
- 2026-10-05: Added to MartechDB

## Alternatives with an official MCP server

In Email marketing:

- [Substack](https://martechdb.com/vendors/substack.md) (substack.com)
- [Klaviyo](https://martechdb.com/vendors/klaviyo.md) (klaviyo.com)
- [OneSignal](https://martechdb.com/vendors/onesignal.md) (onesignal.com)
- [Customer.io](https://martechdb.com/vendors/customerio.md) (customer.io)

## Get this data

- API: `curl https://martechdb.com/api/v1/vendors/mailsenpai.com`
- MCP: `claude mcp add --transport http martechdb https://martechdb.com/mcp`, then ask about MailSenpai.
- Web page: https://martechdb.com/vendors/mailsenpai