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

# OpenFeature providers

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This category contains documentation topics describing the LaunchDarkly OpenFeature providers.

OpenFeature is an open specification that provides a vendor-agnostic, community-driven API for feature flagging. Within OpenFeature, providers are responsible for performing flag evaluations. To learn more, reference the [OpenFeature documentation](https://openfeature.dev/docs/reference/intro).

LaunchDarkly offers official OpenFeature providers for several of our SDKs, [listed below](#openfeature-providers). You can use these providers in your application in place of a LaunchDarkly SDK.

LaunchDarkly also offers OpenFeature providers for a few of our SDKs in cases where the OpenFeature SDK does not yet have a specification released as v1.0. This is the case for [**Python**](https://github.com/launchdarkly/openfeature-python-server) and [**Ruby**](https://github.com/launchdarkly/openfeature-ruby-server).

In some cases, the OpenFeature community has also created OpenFeature providers compatible with LaunchDarkly SDKs. This is the case for [**Go**](https://github.com/open-feature/go-sdk-contrib/tree/main/providers/launchdarkly) and [**JavaScript**](https://github.com/open-feature/js-sdk-contrib/tree/main/libs/providers/launchdarkly-client). We welcome these community contributions but cannot officially provide support for these providers.

To learn more, read about the [OpenFeature Ecosystem](https://openfeature.dev/ecosystem?instant_search%5BrefinementList%5D%5Bvendor%5D%5B0%5D=LaunchDarkly) for LaunchDarkly.

## OpenFeature providers

## Additional resources

<table>
  <thead>
    <tr>
      <th>OpenFeature Provider</th>
      <th>Sample application</th>
      <th>Provider API documentation</th>
      <th>GitHub repository</th>
    </tr>
  </thead>

  <tbody>
    <tr>
      <td>.NET (server-side)</td>
      <td>[Sample OpenFeature .NET provider application](https://github.com/launchdarkly/hello-openfeature-dotnet-server)</td>
      <td>[OpenFeature .NET provider API docs](https://launchdarkly.github.io/openfeature-dotnet-server/)</td>
      <td>[LaunchDarkly OpenFeature provider for .NET (server-side) SDK](https://github.com/launchdarkly/openfeature-dotnet-server)</td>
    </tr>

    <tr>
      <td>Cloudflare</td>
      <td>[Sample OpenFeature Cloudflare provider application](https://github.com/launchdarkly/js-core/tree/main/packages/sdk/openfeature-cloudflare-server/examples/getting-started)</td>
      <td>[OpenFeature Cloudflare provider API docs](https://launchdarkly.github.io/js-core/packages/sdk/openfeature-cloudflare-server/docs/)</td>
      <td>[LaunchDarkly OpenFeature provider for the Cloudflare SDK](https://github.com/launchdarkly/js-core/tree/main/packages/sdk/openfeature-cloudflare-server)</td>
    </tr>

    <tr>
      <td>Java</td>
      <td>[Sample OpenFeature Java provider application](https://github.com/launchdarkly/hello-openfeature-java-server)</td>
      <td>[OpenFeature Java provider API docs](https://launchdarkly.github.io/openfeature-java-server/com/launchdarkly/openfeature/serverprovider/package-summary.html)</td>
      <td>[LaunchDarkly OpenFeature provider for Java SDK](https://github.com/launchdarkly/openfeature-java-server)</td>
    </tr>

    <tr>
      <td>Node.js (server-side)</td>
      <td>[Sample OpenFeature Node.js provider application](https://github.com/launchdarkly/hello-openfeature-node-server)</td>
      <td>[OpenFeature Node.js provider API docs](https://launchdarkly.github.io/openfeature-node-server/)</td>
      <td>[LaunchDarkly OpenFeature provider for Node.js (server-side) SDK](https://github.com/launchdarkly/openfeature-node-server)</td>
    </tr>

    <tr>
      <td>PHP</td>
      <td>[Sample OpenFeature PHP provider application](https://github.com/launchdarkly/hello-openfeature-php-server)</td>
      <td>[OpenFeature PHP provider API docs](https://launchdarkly.github.io/openfeature-php-server/)</td>
      <td>[LaunchDarkly OpenFeature provider for PHP SDK](https://github.com/launchdarkly/openfeature-php-server)</td>
    </tr>
  </tbody>
</table>