MCP servers
FetchSandbox
A deterministic verification engine for agents. Proves a fix: fails on the old code, passes on new.
Remotes
Streamable HTTP
https://fetchsandbox.com/mcp/v1claude mcp add --transport http fetchsandbox https://fetchsandbox.com/mcp/v1Packages
fetchsandbox-mcp · npm 0.7.30 · stdio
claude mcp add --transport stdio fetchsandbox -- npx -y fetchsandbox-mcp@0.7.30
