Derivations, models and fits - with sessions that keep state, and one bill for the group.
Qurak is for the mathematical half of the work: deriving, solving, transforming, fitting a model to the numbers you paste in. Sessions keep definitions alive between calls, background jobs take the computations too long to wait on, and a lab runs as named seats under one organization with usage its PI can read.
It computes from your model, not from your files: Qurak solves what you write down, and does not read spreadsheets or datasets.
Data enters as expressions you write, not as files: there is no Import and no notebook storage. For the ingest-and-analyze pipeline, keep pandas or R - and bring Qurak the model, the derivation and the fit.
Every example here was run by the engine that will run yours.
| You write | It answers |
|---|---|
| FindFit[{{1, 2.1}, {2, 3.9}, {3, 6.1}}, a x + b, {a, b}, x] | {a -> 1.9999999970394051, b -> 0.033333339254522996} |
| NIntegrate[Exp[-x^2], {x, 0, Infinity}] | 0.8862269253563005 |
| Eigensystem[{{2, 1}, {1, 2}}] | {{3, 1}, {{1, 1}, {-1, 1}}} |
Plot[Exp[-x/5] Sin[2 x], {x, 0, 10}] · Plots render as SVG, in the workbench and over the API.Qurak is an MCP server, so Claude, Cursor, VS Code and any other MCP client can hand it a calculation and get a real answer back instead of a plausible one. There is an HTTP API for everything else. Both are open on the free plan.
A paid account holds 4 live sessions, and background jobs take the work too long to wait on.