FetchSandbox for Zed

io.github.fetchsandbox/mcp

A deterministic verification engine for agents. Proves a fix: fails on the old code, passes on new.

client:Zed transport:streamable-http runtime:npm tools:17

Install FetchSandbox in Zed

~/.config/zed/settings.json · windows: %APPDATA%\Zed\settings.json

{
  "context_servers": {
    "mcp": {
      "url": "https://fetchsandbox.com/mcp/v1"
    }
  }
}

Merge this into your existing settings object — do not replace the file. Zed docs