- Endpoint pages in this tab still work — the playground calls the live API — but responses reflect the v3 data generation, so field values (and a small number of field names) can differ from the frozen examples here. Coded values stored before August 19, 2026 decode against the Pre-v3 Code Tables (Frozen) archive; current values decode with the v3 Feature Field Key.
- Most v2 integrations run unchanged. The response shape is v2-compatible; the deltas are catalogued field-by-field in the migration guide.
- No sunset date has been announced for this reference. It will remain available while v2-era integrations are active.
v2 (Legacy)
About the v2 Reference
The legacy v2 API reference, preserved for existing integrations.
The v2 shape is not a separate dataset: requests to the documented endpoints return
v3-generation data in the v2-compatible response shape. There is no version header or
parameter that returns the old data — it no longer exists.
What that means in practice:
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