w.html">IMF SDMX Central</a>: Registry by
the IMF.</li>
<li><a href="https://sdmx.data.unicef.org/">UNICEF</a>: Registry by UNICEF</li>
</ul>
<p>Organisations that at the time of writing (spring 2023) actively offer
automated access to their data (not just metadata) via an SDMX API include (but
not limited to) the European Central Bank
(<a href="https://sdw-wsrest.ecb.europa.eu/help/">ECB</a>),
the <a href="https://data.oecd.org/api/">OECD</a> (in
<a href="https://data.oecd.org/api/sdmx-json-documentation/"