---
layout: default
title: Apache Calcite &bull; Dynamic data management framework
overview: true
---
{% comment %}
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements.  See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to you under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License.  You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

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limitations under the License.
{% endcomment %}

<section class="intro">
  <div class="grid">
    <div class="unit whole center-on-mobiles">
      <p class="first">Avatica is a framework for building database drivers.</p>
    </div>
  </div>
</section>
<section class="features">
  <div class="grid">
    <div class="unit whole center-on-mobiles">
      <p>Avatica is defined by a wire API between a client and a server. The Avatica server is
      an HTTP server, the Avatica client is a JDBC driver, and the wire API is defined by
      JSON or Protobuf Buffers. The flexibility of the wire API and HTTP transport allows
      other Avatica clients to be built in any language, implementing any client specification.</p>
      <p>Avatica is a sub-project of the <a href="{{ site.baseurl }}/..">Apache Calcite project</a>.
      Please refer to Calcite for information about the project as a whole.</p>
    </div>
  </div>
</section>
<section class="resources">
  <div class="grid">
    <div class="unit one-third">
      <summary>
        <h3>Resources</h3>
        <ul>
          <li><a href="{{ site.baseurl }}/downloads">Downloads</a></li>
          <li><a href="{{ site.baseurl }}/docs/history.html">Avatica History</a></li>
          <li><a href="{{ site.baseurl }}/docs/go_history.html">Avatica Go Client History</a></li>
          <li><a href="http://www.apache.org/security">Security</a></li>
        </ul>
      </summary>
    </div>
    <div class="unit one-third">
      <summary>
        <h3>Apache</h3>
        <ul>
          <li><a href="http://www.apache.org/licenses">License</a></li>
          <li><a href="http://www.apache.org/foundation/sponsorship.html">Donate</a></li>
          <li><a href="http://www.apache.org/foundation/thanks.html">Thanks</a></li>
          <li><a href="http://www.apache.org">Website</a></li>
        </ul>
      </summary>
    </div>
  </div>
</section>