Two people, measured simulators.

Rystic builds local, stateful simulators of the APIs your code depends on, and measures every one of them against the live service before it ships. The percentage on each simulator is that measurement, published from CI per commit. It is a number we have to live with, not a claim we make.

We are a team of two, in Y Combinator's F26 batch. Everything on this site — the simulators, the fidelity pipeline, the docs — is ours end to end.