# Sign Transaction

In this section, you will find comprehensive guides to implementing transaction signing using our SDK and API:

* [**Sign Transaction SDK**](https://docs.0xpass.io/wallet-operations/passkeys-signer/sign-transaction/sign-transaction-sdk): Get started with our SDK  to integrate message signing into your application. The SDK flow abstracts away most interactions, making it the easiest way to get started
* [**Sign Transaction API**](https://docs.0xpass.io/wallet-operations/passkeys-signer/sign-transaction/sign-transaction-api): If you're not using TypeScript or prefer to use an API, you can directly make HTTP requests to sign messages.