[THE THREE ZIPS ARE ATTACHED AT THE BOTTOM OF THIS POST] Here's a free Backdoor MCP for Instantly, Email Bison and PlusVibe. Grab the zip for the platform you send from. You don't need all three. Each one plugs Claude into your account through the platform's official API. Then you just ask it things like "which of my sending accounts need attention?" or "pull last week's numbers for every campaign" and it goes and gets them. What's inside each zip: -START-HERE.txt, the setup steps in order. Open this one first. -The tool itself, about 50 actions covering campaigns, leads, sending accounts and warmup, your inbox and blocklists -A Claude Code skill that shows Claude the safe way to use each action Two things to know before you hand it the keys: 1. It starts read-only. Claude can look at everything and change nothing until you delete one line from the settings. 2. After that, every change runs as a preview first and only goes through when Claude applies it on purpose. It won't launch a campaign or send a reply for you. Those stay with you. You'll need Node.js 22 or newer and an API key from your platform. START-HERE.txt shows where to find the key. Don't have an account yet? -Instantly, code LGJ10 at checkout: https://refer.instantly.ai/lgj -Email Bison, code LGJ at checkout for 10% off: https://emailbison.com -PlusVibe: https://fly.plusvibe.ai/7txq57fyhlzj Stuck on a step? Comment below with the step number and what you're seeing.