---
title: "Grok"
description: "Point Grok at the Unitpost MCP URL. Marketplace listing is a separate catalog PR."
url: https://www.unitpost.com/guides/mcp/grok
section: MCP
updated: 2026-08-28
---
# Grok

## Connection settings

- **Server URL**: https://mcp.unitpost.com/mcp
- **Transport**: Streamable HTTP
- **Auth (recommended)**: OAuth 2.1 — add the URL, approve in the browser (scopes match API capabilities; tokens refresh automatically)
- **Auth (legacy)**: Authorization: Bearer pk_live_YOUR_KEY (workspace API key from Settings → API keys; for clients that can only paste a key)
- **Tools**: one per API operation (email_send, email_campaigns_send, …)

## Grok

> Point Grok at the Unitpost MCP URL. Marketplace listing is a separate catalog PR.

In Grok: add a custom connector with the name and URL below, then approve in the browser. The xAI marketplace plugin lives at github.com/unitpostcom/unitpost-grok-plugin (catalog PR on hold until Connect is verified).

### 1. Connect with OAuth (recommended)

Add a custom connector. Name it Unitpost, paste the server URL below (the `/mcp` URL — streamable HTTP — not an `/sse` URL). No key to copy. Your client opens Unitpost in the browser — pick a workspace, approve the scopes, and you're connected. Tokens refresh automatically.

- Name: Unitpost
- Server URL: https://mcp.unitpost.com/mcp

```text
https://mcp.unitpost.com/mcp
```

> Don't see it? Fully quit and reopen the client — closing the window is often not enough — then check again.

### 2. Send a test

Ask Grok to send a test email from a verified domain and confirm it in Unitpost Activity.

## Related

- [Generic / custom client](https://www.unitpost.com/guides/mcp/custom): Connect any MCP-compatible client or your own agent to Unitpost.
- [Headless / API key](https://www.unitpost.com/guides/mcp/headless): No browser on this machine? CI, SSH, containers, or paste-a-key-only clients — use a key.
- [Cursor](https://www.unitpost.com/guides/mcp/cursor): Connect Cursor to Unitpost with OAuth — approve in the browser, or a key block.