Run Monte Carlo simulations in Claude Desktop or claude.ai. Fragment URLs mean your data never leaves your browser.
Requires Claude Pro/Max/Team/Enterprise with Connectors enabled.
Launch the Claude Desktop application.
Go to Settings → Connectors → Add connector
Authentication: None (no API key required)
The connector is available in your next conversation.
Sign in at claude.ai
Settings → Connectors → Add connector
Toggle the connector on and start chatting.
Mobile tip: add the connector on web/desktop first, then use it on mobile.
Try this prompt to verify the connector is working:
Claude should invoke the run_simulation_packet tool and return a fragment URL pointing to widget.chubby.fyi.
Claude's connector returns fragment URLs. The #fragment portion of a URL is never sent to servers — this is browser security, not a choice we make.
This means your simulation data exists only in your browser. We can't see it, store it, or share it.