FetchSandbox for Claude Code
io.github.fetchsandbox/mcp
A deterministic verification engine for agents. Proves a fix: fails on the old code, passes on new.
client:Claude Code
transport:streamable-http
runtime:npm
tools:17
Install FetchSandbox in Claude Code
run in your project directory
claude mcp add --transport http mcp https://fetchsandbox.com/mcp/v1Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs