> ## Documentation Index > Fetch the complete documentation index at: https://launchdarkly-preview.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # SDKs > This topic lists the available LaunchDarkly SDKs. > For the complete documentation index, see [llms.txt](/llms.txt). For the full documentation snapshot, see [llms-full.txt](/llms-full.txt). A LaunchDarkly account is required to configure any LaunchDarkly SDK. To create an account, sign up for a trial. Your 14-day free trial begins as soon as you sign up. [Start a trial.](https://app.launchdarkly.com/signup) ## Getting started with LaunchDarkly SDKs The SDK types have different security considerations, as well as behavioral and architectural differences. They handle flag evaluations differently, utilize different kinds of SDK keys, and support different languages. Consider your use case carefully before you decide which SDKs to use. To learn more, read [Getting started with SDKs](/sdk/concepts/getting-started). The SDKs are designed to evaluate feature flags in your application. If you want to interact programmatically with the LaunchDarkly product, for example to create or update account members, projects, or environments, or to search for existing flags, you'll need to use the [LaunchDarkly API](/home/infrastructure/api). To learn more about the differences between these offerings, read [Comparing LaunchDarkly's REST API and SDK](/guides/api/comparing-sdk-rest-api). ## Available SDKs If you already know which SDKs you want to use, choose from the list of supported SDKs below. If the language or framework you use is not listed here, we may provide a [sample application](/sdk/concepts/sample-applications) to help you get started. Sample applications demonstrate that an SDK is compatible with a particular language or framework. However, LaunchDarkly only provides full support for those languages or frameworks that have a dedicated SDK. We provide the following SDKs:
### Client-side and mobile SDKs
\[.NET logo .NET logo .NET ]\(/sdk/client-side/dotnet) \[Android logo Android logo Android ]\(/sdk/client-side/android) \[C++ logo C++ logo C++ ]\(/sdk/client-side/c-c--) \[Electron logo Electron logo Electron ]\(/sdk/client-side/electron) \[Flutter logo Flutter logo Flutter ]\(/sdk/client-side/flutter) \[iOS logo iOS logo iOS ]\(/sdk/client-side/ios) \[JavaScript logo JavaScript logo JavaScript ]\(/sdk/client-side/javascript) \[Node.js logo Node.js logo Node.js ]\(/sdk/client-side/node-js) \[React logo React logo React ]\(/sdk/client-side/react) \[Roku logo Roku logo Roku ]\(/sdk/client-side/roku) \[Vue logo Vue logo Vue ]\(/sdk/client-side/vue)
### Server-side SDKs
\[.NET logo .NET logo .NET ]\(/sdk/server-side/dotnet) \[Apex logo Apex logo Apex ]\(/sdk/server-side/apex) \[C++ logo C++ logo C++ ]\(/sdk/server-side/c-c--) \[Erlang logo Erlang logo Erlang ]\(/sdk/server-side/erlang) \[Go logo Go logo Go ]\(/sdk/server-side/go) \[Haskell logo Haskell logo Haskell ]\(/sdk/server-side/haskell) \[Java logo Java logo Java ]\(/sdk/server-side/java) \[Lua logo Lua logo Lua ]\(/sdk/server-side/lua) \[Node.js logo Node.js logo Node.js ]\(/sdk/server-side/node-js) \[PHP logo PHP logo PHP ]\(/sdk/server-side/php) \[Python logo Python logo Python ]\(/sdk/server-side/python) \[Ruby logo Ruby logo Ruby ]\(/sdk/server-side/ruby) \[Rust logo Rust logo Rust ]\(/sdk/server-side/rust)
### AI SDKs
\[.NET logo .NET logo .NET ]\(/sdk/ai/dotnet) \[Go logo Go logo Go ]\(/sdk/ai/go) \[Node.js logo Node.js logo Node.js ]\(/sdk/ai/node-js) \[Python logo Python logo Python ]\(/sdk/ai/python) \[Ruby logo Ruby logo Ruby ]\(/sdk/ai/ruby)
### Edge SDKs
\[Akamai logo Akamai logo Akamai ]\(/sdk/edge/akamai) \[Cloudflare logo Cloudflare logo Cloudflare ]\(/sdk/edge/cloudflare) \[Fastly logo Fastly logo Fastly ]\(/sdk/edge/fastly) \[Vercel logo Vercel logo Vercel ]\(/sdk/edge/vercel)
### OpenFeature providers
\[.NET logo .NET logo .NET ]\(/sdk/openfeature/dotnet) \[Java logo Java logo Java ]\(/sdk/openfeature/java) \[Node.js logo Node.js logo Node.js ]\(/sdk/openfeature/node-js) \[PHP logo PHP logo PHP ]\(/sdk/openfeature/php)
## Supported features This section includes tables of minimum SDK versions required to support the listed features. Open each section to view minimum version requirements. All versions of the server-side, client-side, mobile, and edge SDKs support evaluating feature flags. This table lists the minimum SDK versions required of JavaScript-based client-side SDKs to support the listed features: \| Feature \| [Electron](/sdk/client-side/electron) \| [JavaScript](/sdk/client-side/javascript) \| [Node.js](/sdk/client-side/node-js) \| [React Native](/sdk/client-side/react/react-native) \| [React Web](/sdk/client-side/react/react-web) | [Vue](/sdk/client-side/vue) | | - | \| --- \| --- \| --- \| --- \| --- \| --- | \| [Application metadata](/sdk/features/app-config) \| 2.22 \| 3.0 \| 7.0 \| 2.26 | \| [Automatic environment attributes](/sdk/features/environment-attributes) \| 8.0 | \| [Big segments](/sdk/features/big-segments) \| All \| All \| All \| All \| All \| All | \| [Bootstrapping](/sdk/features/bootstrapping) \| 1.0 \| 2.5 \| 1.0 \| 2.9.5 | \| [Contexts and context kinds](/sdk/features/context-config) \| 3.0 \| 3.0 \| 7.0 \| 3.0 \| 2.0 | \| [Experimentation](/home/experimentation)
(including [holdouts](/home/holdouts) ) \| 1.0
\| 2.6
3.5 \| 1.0
3.3 \| 5.0
10.9 \| 1.0
3.5 \| 1.0
2.3 | \| [Flag evaluation reasons](/sdk/features/evaluation-reasons) \| 1.5.7 \| 2.72 \| 2.0 \| 4.1.2 \| 2.21 \| 1.0 | \| [Getting all flags](/sdk/features/all-flags) \| 1.0 \| 1.0 \| 1.0 \| 5.0.1 \| 2.9 | \| [Hooks](/sdk/features/hooks) \| 3.6 \| 10.0 | \| Inline contexts in custom events \| 3.6 \| 2.4 | \| [Migration flags](/sdk/features/migrations) | \| [Multiple environments](/sdk/features/multiple-environments) \| 4.2.0 | \| [Observability plugin](/sdk/observability) \| 3.7 \| 10.10 \| 3.7 \| 2.4 | \| [Omit anon contexts from events](/sdk/concepts/events#omit-anonymous-contexts-from-events) | \| [Offline mode](/sdk/features/offline-mode) \| 1.0 | \| [Private attributes](/sdk/features/private-attributes) \| 1.0.1 \| 2.9.4 \| 1.0 \| 4.0 \| 2.9 \| 1.0 | \| [Reading flags from a file](/sdk/features/flags-from-files) | \| [Relay Proxy in daemon mode](/sdk/features/relay-proxy-configuration/daemon-mode) | \| [Relay Proxy in proxy mode](/sdk/features/relay-proxy-configuration/proxy-mode) \| 1.5.6 \| 1.0 \| 1.0 \| 1.0 \| 2.20.2 | \| [Secure mode](/sdk/features/secure-mode) \| 1.5 \| 2.17 \| 1.4 \| 2.18 | \| [Sending custom events](/sdk/features/events)
(incl. [events for prereqs](/sdk/concepts/events#include-prerequisite-information-in-events) ) \| 1.1.4
\| 1.6.2
3.5 \| 1.0
3.3 \| 1.0
10.9 \| 1.0
3.5 \| 1.0
2.3 | \| [Session replay plugin](/sdk/observability) \| 3.7 \| 3.7 \| 2.4 | \| [Storing data](/sdk/features/storing-data) | \| [Subscribing to flag changes](/sdk/features/flag-changes) \| 1.0 \| 1.0 \| 1.0 \| 1.0 \| 2.9 | \| [Test data sources](/sdk/features/test-data-sources) | \| [Web proxy configuration](/sdk/features/web-proxy) | This table lists the minimum SDK versions required of non-JavaScript-based client-side SDKs to support the listed features: \| Feature \| [.NET](/sdk/client-side/dotnet) \| [Android](/sdk/client-side/android) \| [C++](/sdk/client-side/c-c--) \| [Flutter](/sdk/client-side/flutter) \| [iOS](/sdk/client-side/ios) | [Roku](/sdk/client-side/roku) | | - | \| --- \| --- \| --- \| --- \| --- \| --- | \| [Application metadata](/sdk/features/app-config) \| 3.1 \| 3.6 (users), 4.2 (contexts) \| 3.0 \| 1.3 \| 8.0 \| 1.3 | \| [Automatic environment attributes](/sdk/features/environment-attributes) \| 4.0 \| 5.0 \| 3.0 \| 9.0 | \| [Big segments](/sdk/features/big-segments) \| All \| All \| All \| All \| All \| All | \| [Bootstrapping](/sdk/features/bootstrapping) | \| [Contexts and context kinds](/sdk/features/context-config) \| 3.0 \| 4.0 \| 3.0 \| 2.0 \| 8.0 \| 2.0 | \| [Experimentation](/home/experimentation)
(including [holdouts](/home/holdouts) ) \| 2.0
5.3 \| 3.1
5.4 \| 2.4.8
\| 0.2.0
4.8 \| 1.0
9.11 \| 1.0
2.2 | \| [Flag evaluation reasons](/sdk/features/evaluation-reasons) \| 1.2 \| 2.7 \| 1.0 \| 1.0 \| 4.3 \| 1.0 | \| [Getting all flags](/sdk/features/all-flags) \| 1.0 \| 2.8 \| 1.0 \| 1.0 \| 1.0 \| 1.0 | \| [Hooks](/sdk/features/hooks) \| 5.8 \| 9.7.2 | \| Inline contexts in custom events \| 5.4 \| 5.7 \| 3.10 \| 4.11.1 \| 9.13 \| 2.4 | \| [Migration flags](/sdk/features/migrations) | \| [Multiple environments](/sdk/features/multiple-environments) \| 2.6 \| 5.3.1 | \| [Observability plugin](/sdk/observability) \| 5.9 \| 9.14 | \| [Omit anon contexts from events](/sdk/concepts/events#omit-anonymous-contexts-from-events) | \| [Offline mode](/sdk/features/offline-mode) \| 1.0 \| 1.0 \| 1.0 \| 1.0 | \| [Private attributes](/sdk/features/private-attributes) \| 1.0 \| 2.2 \| 1.0 \| 1.0 \| 2.10 \| 1.0 | \| [Reading flags from a file](/sdk/features/flags-from-files) | \| [Relay Proxy in daemon mode](/sdk/features/relay-proxy-configuration/daemon-mode) | \| [Relay Proxy in proxy mode](/sdk/features/relay-proxy-configuration/proxy-mode) \| 1.0 \| 1.0 \| 1.0 \| 1.0 \| 1.0 \| 1.0 | \| [Secure mode](/sdk/features/secure-mode) | \| [Sending custom events](/sdk/features/events)
(incl. [events for prereqs](/sdk/concepts/events#include-prerequisite-information-in-events) ) \| 1.0
\| 1.0
5.4 \| 1.0
\| 1.0
\| 1.0
9.11 \| 1.0
| \| [Session replay plugin](/sdk/observability) | \| [Storing data](/sdk/features/storing-data) | \| [Subscribing to flag changes](/sdk/features/flag-changes) \| 2.0 \| 1.0 \| 1.0 \| 1.0 \| 1.0 | \| [Test data sources](/sdk/features/test-data-sources) \| 1.0 | \| [Web proxy configuration](/sdk/features/web-proxy) \| 1.0 | This table lists the minimum SDK versions required of server-side SDKs with names that start with letters from A to K to support the listed features: \| Feature \| [.NET](/sdk/server-side/dotnet) \| [Apex](/sdk/server-side/apex) \| [C++](/sdk/server-side/c-c--) \| [Erlang](/sdk/server-side/erlang) \| [Go](/sdk/server-side/go) \| [Haskell](/sdk/server-side/haskell) | [Java](/sdk/server-side/java) | | - | \| --- \| --- \| --- \| --- \| --- \| --- \| --- | \| [Application metadata](/sdk/features/app-config) \| 8.0 \| 3.0 \| 1.6 \| 5.9 \| 3.1 \| 5.8 | \| [Automatic environment attributes](/sdk/features/environment-attributes) | \| [Big segments](/sdk/features/big-segments) \| 6.2 \| 5.5 \| 5.7 | \| [Bootstrapping](/sdk/features/bootstrapping) | \| [Contexts and context kinds](/sdk/features/context-config) \| 7.0 \| 3.0 \| 2.0 \| 6.0 \| 4.0 \| 6.0 | \| [Data saving mode](/sdk/features/data-saving-mode) \| 8.11 \| 7.11 \| 7.11 | \| [Experimentation](/home/experimentation) \| 6.1 \| 1.1 \| 2.4 \| 1.2 \| 5.4 \| 2.2 \| 5.5 | \| [Flag evaluation reasons](/sdk/features/evaluation-reasons) \| 5.4 \| 1.0 \| 1.0 \| 1.0 \| 4.3 \| 1.0 \| 4.3 | \| [Getting all flags](/sdk/features/all-flags)
(incl. [prereq details](/sdk/concepts/events#include-prerequisite-information-in-events) ) \| 2.0
8.6 \| 1.0
\| 1.0
3.8 \| 1.0
3.4 \| 2.0
7.7 \| 1.0
4.3 \| 1.0
7.6 | \| [Hooks](/sdk/features/hooks) \| 8.4 \| 7.4 \| 7.4 | \| Inline contexts in custom events \| 8.8 \| 3.9 \| 3.7 \| 7.9 \| 4.5 \| 7.8 | \| [Migration flags](/sdk/features/migrations) \| 8.0 \| 7.0 \| 7.0 | \| [Multiple environments](/sdk/features/multiple-environments) | \| [Observability plugin](/sdk/observability) \| 8.10 \| 7.11 | \| [Omit anon contexts from events](/sdk/concepts/events#omit-anonymous-contexts-from-events) \| 7.5 \| 4.2 | \| [Offline mode](/sdk/features/offline-mode) \| 1.0 \| 1.0 \| 1.0 \| 2.0 \| 1.0 \| 1.0 | \| [OpenTelemetry](/sdk/features/opentelemetry-server-side) \| 8.4 \| 7.4 \| 7.4 | \| [Private attributes](/sdk/features/private-attributes) \| 3.5 \| 1.0 \| 1.0 \| 1.0 \| 2.2.3 \| 1.0 \| 2.5 | \| [Reading flags from a file](/sdk/features/flags-from-files) \| 5.5 \| 2.6 \| 1.0 \| 4.4 \| 3.0 \| 4.5 | \| [Relay Proxy in daemon mode](/sdk/features/relay-proxy-configuration/daemon-mode) \| 5.2 \| 1.2 \| 1.0 \| 2.0 \| 1.0 \| 1.0 | \| [Relay Proxy in proxy mode](/sdk/features/relay-proxy-configuration/proxy-mode) \| 1.0 \| 1.0 \| 1.0 \| 2.0 \| 1.0 \| 1.0 | \| [Secure mode](/sdk/features/secure-mode) \| 2.0 \| 2.0 \| 1.0 \| 1.0 | \| [Sending custom events](/sdk/features/events) \| 1.0 \| 1.0 \| 1.0 \| 1.0 \| 2.0 \| 1.0 \| 1.0 | \| [Storing data](/sdk/features/storing-data) \| 1.0 \| 1.2 (Redis) \| 1.0 \| 4.5 (DynamoDB, Consul) \| 1.0 \| 1.0 | \| [Subscribing to flag changes](/sdk/features/flag-changes) \| 6.0 \| 5.0 \| 5.0 | \| [Test data sources](/sdk/features/test-data-sources) \| 6.0 \| 2.6 \| 1.4 \| 2.0 \| 1.0 \| 5.1 | \| [Web proxy configuration](/sdk/features/web-proxy) \| 1.0 \| 1.0 \| 2.0 \| 2.2 | This table lists the minimum SDK versions required of server-side SDKs with names that start with letters from L to Z to support the listed features: \| Feature \| [Lua](/sdk/server-side/lua) \| [Node.js](/sdk/server-side/node-js) \| [PHP](/sdk/server-side/php) \| [Python](/sdk/server-side/python) \| [Ruby](/sdk/server-side/ruby) | [Rust](/sdk/server-side/rust) | | - | \| --- \| --- \| --- \| --- \| --- \| --- | \| [Application metadata](/sdk/features/app-config) \| 6.4 \| 4.3 \| 7.6 \| 6.4 \| 1.0 | \| [Automatic environment attributes](/sdk/features/environment-attributes) | \| [Big segments](/sdk/features/big-segments) \| 6.2 \| 6.4 \| 7.3 \| 6.3 | \| [Bootstrapping](/sdk/features/bootstrapping) | \| [Contexts and context kinds](/sdk/features/context-config) \| 7.0 \| 5.0 \| 8.0 \| 7.0 \| 1.0 | \| [Data saving mode](/sdk/features/data-saving-mode) \| 9.10 \| 9.13 \| 8.12.0 | \| [Experimentation](/home/experimentation) \| 1.0 \| 6.1 \| 4.1 \| 7.2 \| 6.2 \| 1.0 | \| [Flag evaluation reasons](/sdk/features/evaluation-reasons) \| 1.0 \| 5.4 \| 3.4 \| 6.4 \| 5.2 \| 1.0 | \| [Getting all flags](/sdk/features/all-flags)
incl. [prereq details](/sdk/concepts/events#include-prerequisite-information-in-events) \| 1.0
2.1.2 \| 3.0
9.7 \| 1.6
6.3 \| 2.0
9.8 \| 2.0.1
8.8 \| 1.0
2.3 | \| [Hooks](/sdk/features/hooks) \| 9.3 \| 9.4 \| 8.4 | \| Inline contexts in custom events \| 2.1.3 \| 9.7.7 \| 6.5 \| 9.10 \| 8.9 \| 2.6 | \| [Migration flags](/sdk/features/migrations) \| 9.0 \| 6.0 \| 9.0 \| 8.0 \| 2.2 | \| [Multiple environments](/sdk/features/multiple-environments) | \| [Observability plugin](/sdk/observability) \| 9.10 \| 9.12 | \| [Omit anon contexts from events](/sdk/concepts/events#omit-anonymous-contexts-from-events) \| 9.7 \| 8.6 \| 2.2 | \| [Offline mode](/sdk/features/offline-mode) \| 1.0 \| 1.0 \| 2.0 \| 2.0 \| 1.0 | \| [OpenTelemetry](/sdk/features/opentelemetry-server-side) \| 9.3 \| 9.4 \| 8.4 | \| [Private attributes](/sdk/features/private-attributes) \| 1.0 \| 3.3 \| 2.4 \| 4.1 \| 2.0 \| 1.0 | \| [Reading flags from a file](/sdk/features/flags-from-files) \| 1.0 \| 3.5 \| 6.6 \| 5.4.1 | \| [Relay Proxy in daemon mode](/sdk/features/relay-proxy-configuration/daemon-mode) \| 1.0 \| 1.0 \| 1.0 \| 2.0 \| 2.0 | \| [Relay Proxy in proxy mode](/sdk/features/relay-proxy-configuration/proxy-mode) \| 1.0 \| 1.0 \| 1.0 \| 2.0 \| 2.0 \| 1.0 | \| [Secure mode](/sdk/features/secure-mode) \| 3.0 \| 1.0 \| 2.0 \| 2.0.1 \| 1.0 | \| [Sending custom events](/sdk/features/events) \| 1.0 \| 1.0 \| 1.0 \| 2.0 \| 2.0 \| 1.0 | \| [Storing data](/sdk/features/storing-data) \| 1.0 \| 2.0 (Redis) \| 1.0 (Redis), 3.5 (Consul and DynamoDB) \| 2.0 (Consul and Redis), 6.7 (DynamoDB) \| 2.3.1 (Redis), 5.5 (Consul and DynamoDB) | \| [Subscribing to flag changes](/sdk/features/flag-changes) \| 1.0 \| 9.1 \| 2.0 | \| [Test data sources](/sdk/features/test-data-sources) \| 6.3 \| 4.2 \| 7.4 \| 2.0 | \| [Web proxy configuration](/sdk/features/web-proxy) \| 1.0 \| 2.0 \| 2.2.5 | Edge SDKs are designed to be used with one of the LaunchDarkly client-side SDKs as follows: * The edge SDK gets all flags at the edge for a given context, and bootstraps them onto a cached payload * The client-side SDK initializes the bootstrapped payload * The client-side SDK evaluates the flags and sends events back to LaunchDarkly If you are using newer versions of some edge SDKs, then the SDK can send events back to LaunchDarkly directly. Using a client-side SDK is not necessary. You do need to configure the SDK to enable sending events. This table lists the minimum SDK versions required of edge SDKs to support the listed features: \| Feature \| [Akamai](/sdk/edge/akamai) \| [Cloudflare](/sdk/edge/cloudflare) \| [Fastly](/sdk/edge/fastly) | [Vercel](/sdk/edge/vercel) | | - | \| --- \| --- \| --- \| --- | \| [Contexts and context kinds](/sdk/features/context-config) \| 1.0 \| 2.0 \| 0.1 \| 1.0 | \| [Experimentation](/home/experimentation) \| 2.3.0 \| 0.1 \| 1.2.0 | \| [Getting all flags](/sdk/features/all-flags) \| 1.0 \| 0.1 \| 1.0 | \| [Migration flags](/sdk/features/migrations) \| 1.0.9 \| 2.2.2 \| 1.1.6 | \| [Secure mode](/sdk/features/secure-mode) \| 2.0 \| 0.1 \| 1.0 | \| [Sending custom events](/sdk/features/events) \| 2.3 \| 0.1 \| 1.2 | AI SDKs are designed to interact with AI Configs. AI Configs provide management of your AI prompts and model configurations. This table lists the minimum SDK versions required of AI SDKs to support the listed features: \| Feature \| [.NET AI SDK](/sdk/ai/dotnet) \| [Go AI SDK](/sdk/ai/go) \| [Node.js (server-side) AI SDK](/sdk/ai/node-js) \| [Python AI SDK](/sdk/ai/python) | [Ruby AI SDK](/sdk/ai/ruby) | | - | \| --- \| --- \| --- \| --- \| --- | \| [Contexts and context kinds](/sdk/features/context-config) \| 0.1 \| 0.1 \| 0.1 \| 0.1 \| 0.1 | \| [Customizing AI Configs](/sdk/features/ai-config) \| 0.1 \| 0.1 \| 0.1 \| 0.1 \| 0.1 | \| [Customizing AI Configs with agents](/sdk/features/ai-config) \| 0.11 \| 0.10 | \| [Experimentation](/home/experimentation) \| 0.1 \| 0.1 \| 0.1 \| 0.1 \| 0.1 | \| [Private attributes](/sdk/features/private-attributes) \| 0.1 \| 0.1 \| 0.1 \| 0.1 \| 0.1 | \| [Tracking AI metrics](/sdk/features/ai-metrics) \| 0.1 \| 0.1 \| 0.1 \| 0.1 \| 0.1 |