WIMSTA Tools
Everything here is free. The calculators earn their keep by being useful to build on — for bloggers, developers, journalists and AI assistants. One entry point.
Put an honest range band on your page
A self-contained widget — the same range band you see here, in one <script>
line. No dependencies, a couple of kilobytes, and it renders in a shadow root so it can’t
clash with your site’s styles. Free to use; the built-in “Powered by WIMSTA”
dofollow link is the only condition.
The machine-readable formula registry
Every formula WIMSTA runs — with coefficients, inputs, sources, samples, published error and
honest verification status — as open data. Licensed CC BY 4.0 CC BY 4.0: use it anywhere, credit
WIMSTA (wimsta.com) with a link.
- Browse the registry — human-readable table
- /api/registry.json — the JSON endpoint (CORS open)
curl https://wimsta.com/api/registry.json | jq '.formulas[] | select(.id=="cun-bae")'Run the calculations from your code
Right now the maths runs entirely in the browser — nothing is sent to a server. An open HTTP API that returns the honest range for a given set of measurements is planned; the coefficient registry it will be built on is already available, so you can compute the same numbers today.
Use WIMSTA from Claude and other AI assistants
Coming soon. MCP (the Model Context Protocol) is an open standard that lets AI assistants call external tools directly. An MCP server will expose the WIMSTA registry and calculators so an assistant can return an honest range instead of one made-up number.
Sources, data and custom analyses
We answer questions about body-composition formulas and can run custom analyses on public datasets. Start with how we calculate (every source and limit) and the formula registry. For anything else, reach us at [email protected].