Openline

Openline is a Scalar Field product. It lets a chat (Claude, ChatGPT, Cursor) send mail, place a phone call, or send SMS from a number Openline mints for you.

Add this MCP server in your host’s connector settings. ChatGPT and Claude open Openline OAuth; you enter email and the inbox code here. After that you can add a phone number, which is optional. The host stores the session. Codes never go through chat tools.

MCP: https://staging.openline.scalarfield.io/mcp

• Claude: Settings → Connectors → add custom connector
• ChatGPT: Settings → Apps / Connectors → Developer mode → custom connector
• Cursor: MCP settings → same URL

Download the plugin ZIP

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