> ## Documentation Index
> Fetch the complete documentation index at: https://docs.realie.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# About the v2 Reference

> The legacy v2 API reference, preserved for existing integrations.

<Warning>
  The live Realie API now serves the **v3 data generation**. This tab preserves the v2
  reference exactly as it documented the previous generation, so existing integrations
  can compare against what they built. For current behavior, use the
  [v3 API reference](/api-reference/v3/overview) and the
  [v2 → v3 migration guide](/api-reference/v3/migration).
</Warning>

The v2 API is not separately addressable: requests to the documented endpoints return
v3-generation data in the v2-compatible response shape. There is no version header or
parameter that pins a response to the old data.

What that means in practice:

* **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.
* **Most v2 integrations run unchanged.** The response shape is v2-compatible; the
  deltas are catalogued field-by-field in the
  [migration guide](/api-reference/v3/migration).
* **No sunset date has been announced** for this reference. It will remain available
  while v2-era integrations are active.