> For the complete documentation index, see [llms.txt](https://docs.atsign.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.atsign.com/atsign-platform/sdks.md).

# SDKs

Learn about Atsign's SDKs and developer presence

## Our client SDKs

The table below shows all of our client SDKs. A Client SDK implements the client-side of the [Atsign Protocol](/atsign-platform/atsign-protocol.md). They are the main toolkits a developer needs to create an application secured by Atsign Platform.

If there's an app you want to build, pick up a language SDK and get started through one of the links below.

If your language is unsupported, feel free to give us a shout at <support@atsign.com>!

<table><thead><tr><th width="136.72222900390625">Language</th><th width="102.44439697265625">State</th><th width="224.3690185546875">GitHub Link</th><th>Description</th></tr></thead><tbody><tr><td><a href="/dart-sdk/getting-started.md">Dart</a> / <a href="/flutter-sdk/getting-started.md">Flutter</a></td><td>Stable</td><td><a href="https://github.com/atsign-foundation/at_client_sdk">https://github.com/atsign-foundation/at_client_sdk</a></td><td>The most feature-rich and supported language SDK; directed towards Dart and Flutter application developers to build secure apps</td></tr><tr><td>Java</td><td>Stable</td><td><a href="https://github.com/atsign-foundation/at_java">https://github.com/atsign-foundation/at_java</a></td><td>The next most feature-rich SDK, also published on Maven</td></tr><tr><td>C</td><td>Beta</td><td><a href="https://github.com/atsign-foundation/at_c">https://github.com/atsign-foundation/at_c</a></td><td>SDK built with the goal of serving CPU architectures such as RISC-V and embedded devices (ESP32s) and as a core dependency of the <a href="https://docs.noports.com/">C NoPorts Daemon</a></td></tr><tr><td>Python</td><td>Beta</td><td><a href="https://github.com/atsign-foundation/at_python">https://github.com/atsign-foundation/at_python</a></td><td>SDK built with the initial goal of supporting non-Dart capable devices and Pythonistas in general</td></tr><tr><td>Micropython</td><td>Beta</td><td><a href="https://github.com/atsign-foundation/at_pico_w">https://github.com/atsign-foundation/at_pico_w</a></td><td>SDK built with the goal of supporting devices like the Raspberry Pi Pico W and embedded devices</td></tr><tr><td>C++</td><td>Alpha</td><td><a href="https://github.com/atsign-foundation/at_esp32">https://github.com/atsign-foundation/at_esp32</a></td><td>SDK built with the initial goal of supporting ESP32s via PlatformIO/Arduino SDK</td></tr><tr><td>Go</td><td>Alpha</td><td><a href="https://github.com/atsign-foundation/at_go">https://github.com/atsign-foundation/at_go</a></td><td>SDK to support Go developers; still in alpha phase</td></tr><tr><td>Rust</td><td>Alpha</td><td><a href="https://github.com/atsign-foundation/at_rust">https://github.com/atsign-foundation/at_rust</a></td><td>SDK to support Rust developers; still in alpha phase</td></tr></tbody></table>

## Our GitHub

The Atsign Platform is fully open source under open source licensing.

Check out The Atsign Foundation below!

{% embed url="<https://github.com/atsign-foundation>" %}