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Each SDK is an installable toolkit for one capability. They share a single foundation — Core resolves project and visitor identity once, and every other SDK reads that identity instead of resolving it independently. Pick a product below: each has an Overview & setup guide and a Reference page (API catalog — filled in per SDK in follow-up issues).

Core

Foundation — project and visitor identity

Analytics

Growth & Testing — event tracking

Experiments

Growth & Testing — A/B test assignment

Forms

Data Collection — form state, validation, and persistence