---
title: "Claude"
description: "Add Unitpost as a connector in claude.ai — it follows you to Claude Desktop and mobile. Approve in the browser."
url: https://www.unitpost.com/docs/ai/claude
section: MCP
updated: 2026-10-05
---
# Claude

## 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, …)

## Claude

> Add Unitpost as a connector in claude.ai — it follows you to Claude Desktop and mobile. Approve in the browser.

Add the server URL as a custom connector once on claude.ai and approve in the browser; the connector is then available in Claude on the web, Desktop, and mobile.

### 1. Add a custom connector

On claude.ai: Settings → Connectors → Add custom connector. Paste the server URL below and complete the browser approval. No key to copy. Your client opens Unitpost in the browser — pick a workspace, approve the scopes, and you're connected. Tokens refresh automatically.

- Remote MCP server URL: https://mcp.unitpost.com/mcp

> On a Team or Enterprise plan, an Owner may need to add the connector for the organization first.

### 2. Verify

Open a chat, check the unitpost connector is enabled in the tools menu, and ask Claude to list your sending domains.

### 3. Send a test

Ask Claude to send a test email from a verified domain. Send tools are marked destructive, so Claude asks before anything goes out. Confirm it in Unitpost Activity.

## Related

- [Codex](https://www.unitpost.com/docs/ai/codex): Connect ChatGPT/Codex with OAuth in the browser. Codex CLI takes a static key instead.
- [ChatGPT](https://www.unitpost.com/docs/ai/chatgpt): Connect Unitpost to ChatGPT as a custom MCP connector — approve in the browser.
- [GitHub Copilot](https://www.unitpost.com/docs/ai/copilot): Connect VS Code agent mode to Unitpost with OAuth — approve in the browser. API key as fallback.