This is interesting, but it seems like it's only exposed as a Cloudflare service now, rather than as a tool I can use locally (unless I missed something)?

It doesn't seem to me that isolates are sufficiently unique technology to warrant this only running on a server. Surely we can spin up a V8 locally or something and achieve the same thing?

Hopefully the popular MCP clients will start implementing this approach, if it works as well as claimed.