# SDK integration

Wallet apps that integrate Ontology's `SDK` can use `Explorer API` to carry out digital asset related operations and transactions, and account management functions.

![](https://1077617372-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LvPXC4l2V4Z8gRDNIoZ%2F-LvskKw8s9Pwh0-imBPd%2F-LvskNklyn99tEifa9RG%2Fwalletintegration-levels-1.jpg?generation=1576131466945704\&alt=media)

## SDK usage

Ontology's `SDK` acts as the bridge of communication between application programs and the Ontology network.

To cater to different needs of developers, Ontology provides `SDKs` for multiple languages that are all based on a standard development specification.

After successfully integrating the `SDK`, a wallet can perform the following functions:

* Communicate and interact with Ontology **blockchain**
* Create and maintain **accounts**.
* Generate and manipulate **assets**, including primary, and `OEP-4`, `OEP-5`, `OEP-8` based assets.
* Realize a **digital identity**.
* **Node** staking.

Please follow the links specified below to navigate to language specific SDK usage instructions and reference:

|                                                                                                                         |                                                    Ontology SDK family                                                   |                                                                                                                     |
| :---------------------------------------------------------------------------------------------------------------------: | :----------------------------------------------------------------------------------------------------------------------: | :-----------------------------------------------------------------------------------------------------------------: |
|     [Go SDK](https://docs.ont.io/guides-and-tutorials/integration-guides/mobile-wallet-integration/sdk-integration)     |     [Java SDK](https://docs.ont.io/guides-and-tutorials/integration-guides/mobile-wallet-integration/sdk-integration)    | [Python SDK](https://docs.ont.io/guides-and-tutorials/integration-guides/mobile-wallet-integration/sdk-integration) |
| [TypeScript SDK](https://docs.ont.io/guides-and-tutorials/integration-guides/mobile-wallet-integration/sdk-integration) |     [PHP SDK](https://docs.ont.io/guides-and-tutorials/integration-guides/mobile-wallet-integration/sdk-integration)     |  [Swift SDK](https://docs.ont.io/guides-and-tutorials/integration-guides/mobile-wallet-integration/sdk-integration) |
|   [Android SDK](https://docs.ont.io/guides-and-tutorials/integration-guides/mobile-wallet-integration/sdk-integration)  | [Objective-C SDK](https://docs.ont.io/guides-and-tutorials/integration-guides/mobile-wallet-integration/sdk-integration) |   [C# SDK](https://docs.ont.io/guides-and-tutorials/integration-guides/mobile-wallet-integration/sdk-integration)   |

## Explorer API

`Explorer API` has been made available for developers, institutions, and cryptocurrency exchange platforms to enable them to query transaction and account related information from the Ontology blockchain.

Currently, the following can be queried to fetch information from the chain:

* [Blocks](https://docs.ont.io/guides-and-tutorials/integration-guides/mobile-wallet-integration/sdk-integration)
* [Accounts](https://docs.ont.io/guides-and-tutorials/integration-guides/mobile-wallet-integration/sdk-integration)
* [Transactions](https://docs.ont.io/guides-and-tutorials/integration-guides/mobile-wallet-integration/sdk-integration)
* [ONT ID](https://docs.ont.io/guides-and-tutorials/integration-guides/mobile-wallet-integration/sdk-integration)
* [Statistics](https://docs.ont.io/guides-and-tutorials/integration-guides/mobile-wallet-integration/sdk-integration)