Node SDK contract
The wire/surface contract @optomatica/optolink-sdk codes against — /links endpoints, auth tier, error envelope, pagination, QR, rate limits, compat.
Android SDK contract
The wire/surface contract com.optomatica:optolink-android codes against — /match, /data, /sdk/* endpoints, auth tiers, match shapes, rate limits, App Links prerequisites.
iOS SDK contract
The wire/surface contract the Swift SDK codes against — /match, /data, /sdk/* endpoints, auth tiers, the omit-timezone delta, AASA prerequisites, rate limits.
Flutter SDK contract
The optolink_flutter channel contract — what the thin plugin owns, what the native SDKs own, the delivery rule, and the pinned native/backend versions.