MCP

The MCP server is the live tool surface. One tool per API operation. Connect in the browser with OAuth, or paste a key for headless clients.

• Server URL: https://mcp.unitpost.com/mcp
• Transport: Streamable HTTP
• Auth (recommended): OAuth 2.1 — add the URL, approve in the browser
• Auth (legacy): Authorization: Bearer pk_live_YOUR_KEY
• Tools: one per API operation (email_send, email_campaigns_send, …)