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

# Changelog

> Notable changes to the HayInsights Open API.

<Update label="0.1.0" description="2026-06-19">
  **Initial preview release.**

  * 40 read endpoints across six domains: Commodities, Crypto, ETF, FX, Macro and
    Real Estate.
  * Single-tier authentication via the `X-API-Key` header.
  * Weighted, per-minute rate limiting with `X-RateLimit-*` headers.
  * Plan-based feature gating (`<domain>_data` feature codes).
  * Standard response envelope `{ success, statusCode, data, meta }`.
</Update>