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url: /docs/guides/plugins/apps/app-sdks.md
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# App SDKs

The Shopware app SDK enables you to build applications and plugins that extend the functionality of the Shopware e-commerce platform. It provides the necessary resources and tools to simplify the development process and integrate custom logic into the Shopware environment.

| **Layer**                                                       | **Type** | **Core strengths**                                                | **Security / ops**                                                                                                                                                      | **What it lacks**                 | **Registration flow**                                                                                                             | **Lifecycle handling** | **Webhook handling**  | **Authenticated HTTP client** | **Storage / persistence** | **Storage backends**                      | **Structured errors**    | **Framework integration** | **Agnostic core**                   |
| --------------------------------------------------------------- | -------- | ----------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------- | --------------------------------------------------------------------------------------------------------------------------------- | ---------------------- | --------------------- | ----------------------------- | ------------------------- | ----------------------------------------- | ------------------------ | ------------------------- | ----------------------------------- |
| [Meteor Admin SDK](../administration/meteor-admin-sdk.md)       | Frontend | Admin UI extensions for apps and plugins                          | Extends the Shopware Admin UI; notifications, context/location access, UI/data integration; TypeScript; dependency-free; tree-shakable                                  | Not relevant as a backend/ops SDK | No backend capabilities such as registration, webhook verification, lifecycle handling, or shop persistence                       | No                     | No                    | No                            | No                        | No                                        | None                     | No                        | N/A                                 |
| [App SDK for PHP](../app-sdks/php/index.md)                     | Backend  | PHP / Symfony-style app backends                                  | Strong core backend coverage: registration, lifecycle, action parsing into structs, events, signing, context handling, HTTP client; PSR-based; Symfony Bundle available | Solid fundamentals                | Less explicit support for replay protection, storage backends, response builders, structured errors, and middleware/extensibility | Yes                    | Yes                   | Yes                           | Yes                       | Some abstraction, but not a major feature | Not prominently surfaced | Not prominently surfaced  | Symfony Bundle                      |
| [App Server SDK in TypeScript](../app-sdks/javascript/index.md) | Backend  | TS/JS backends, Node, Deno, Cloudflare Workers, serverless / edge | Runtime portability; strong story around registration, signing/verification, preconfigured API client, complete registration handshake                                  | Good portability                  | Less explicit coverage for lifecycle handling, webhook ergonomics, storage/persistence, structured errors, and response helpers   | Yes                    | Not strongly surfaced | Not strongly surfaced         | Yes                       | Not clearly surfaced                      | Not prominently surfaced | Not prominently surfaced  | Example-led, less framework-focused |