Grok

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).

What are the connection details?

Server URLhttps://mcp.unitpost.com/mcp
TransportStreamable 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)
Toolsone per API operation (email_send, email_campaigns_send, …)

How do I connect Grok?

  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.

    NameUnitpost
    Server URLhttps://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.

No browser on this machine? For headless setups, CI, SSH, or clients that can only paste a key, use the API-key setup instead.