ChatGPT with Microsoft Outlook
Learn how to build a custom GPT in ChatGPT that manages emails in Microsoft Outlook using Caddey — no coding required.
May 28, 2025
🚀 Caddey is in beta
Let AI take action under your control
Caddey connects your AI agents to your apps with safety and control built in. Assign tools to ChatGPT, Copilot, or custom agents, and monitor every step they take.
Why choose Caddey
Caddey unlocks the potential of your apps, turning them into tools your AI agents can use to streamline workflows and take real action safely.
Toolboxes
Group and control tool access per agent or app
Key vault
Store app credentials securely without exposing them to AI agents.
Firewall
Define what agents can — and cannot — do with your tools
Logs
Track every tool execution with full context: agent, user, and action
No-code tool builder
Convert APIs or app features into agent-compatible tools in minutes
Agent integration
Connect ChatGPT, Copilot, or custom agents via OAuth and MCP
Comprehensive documentation and resources are available to help you get started quickly and with confidence.
How it works
With Caddey, transforming apps into tools for your AI agent is effortless. Follow these simple steps to get started:
1. Connect your app
Connect an app from the marketplace or upload your app's OpenAPI spec.
2. Extract tools
Caddey automatically identifies app operations like “Send Email” or “Fetch Data” and turns them into executable tools.
3. Build toolboxes
Group and customize tools from multiple apps into custom toolboxes tailored to your workflow. Each toolbox is ready for your AI agent to use.
Once your toolbox is ready, your AI agent can search, execute, and take action across apps seamlessly.
Get started for freeReal AI workflows you can try
Explore real AI workflows using Caddey. Each tutorial shows exactly how to automate tasks with your favorite tools.
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Learn how to build a custom GPT in ChatGPT that manages tasks in Microsoft To Do using Caddey — no coding required.
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