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Setting Up Walter MCP in Cursor and Windsurf: The Complete Guide

Two pieces, one config entry, and the 2026 changes that break most older setup guides.

Mohab A.Karim

9 min read7 hours ago

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If you run content work out of an AI code editor instead of a browser tab, you’ve probably wanted Walter Writes AI’s humanizer and detector available as tools the agent can actually call, not a website you paste text into. Cursor and Windsurf can both do this through MCP, the Model Context Protocol, which lets an editor’s agent use outside tools.

There are two things to set up, and most failed setups come from doing only one of them. There’s also a bigger change worth knowing about before you touch a config file: in June 2026, Windsurf became Devin Desktop, and its MCP configuration moved.…