Privacy

Joinerycalc has no accounts and stores nothing you type. Each calculation is computed and forgotten.

What is logged

For each calculation, through the page, the API or the MCP server, and for each MCP connection, one anonymous counter is recorded:

• the channel (page, API or MCP),
• the client software name (for example the name an MCP client announces, or the first word of the browser or library user agent),
• whether the calculation succeeded, and when the input was invalid, the names of the invalid fields (never their values),
• the unit (mm or inch),
• the country, as provided by Cloudflare.

No IP address, no board dimensions, no identifier that links two calculations together. Page visits are counted by Cloudflare Web Analytics, which sets no cookies.

Why

To learn how people and AI agents use a small public tool. The counts are published, aggregated, in the project's learnings.

Where and how long

The service runs on Cloudflare. The counters are kept in Cloudflare Workers Analytics Engine for at most three months. Nothing is shared with or sold to anyone else.

Contact

Samuel Pouyt, samuelpouyt.com.