Handle Wallets and Transactions at Scale with the Para Server SDK ⚙️

The Para Server SDK allows you to securely issue and manage wallets from backends, enabling seamless wallet generation, transaction signing, and low latency at scale. 

The Para Server SDK is designed to securely execute sensitive operations entirely server-side, by importing a user’s session from their device. This approach allows wallets created through Para to be managed within backend systems, giving you greater control. The Server SDK is ideal for:

• Automations and fast transaction signing
• Running reliably in low-connectivity environments
• Handling sensitive operations server-side

How the Server SDK Works

At its core, the Server SDK enables the transfer of session data from the client to the server, allowing actions that typically run on the client (like signing transactions) to be securely performed server-side using Para’s non-custodial wallet infrastructure. Use the same authentication as client side SDKs, while MPC makes it possible to safely use signers server-side without access to private keys. Here's how it works:

• Once a user is authenticated client-side, their session is exported and securely sent to the server. 
• The server then initializes the Para SDK, preparing it to manage incoming sessions. 
• Upon receiving the session string, the server imports it, recreating the user’s authenticated state.
• With the session now active, the server can perform sensitive operations like secure transaction signing and message verification, all without needing further input from the user.

Built for Scale

The Para Server SDK ensures reliable transaction processing, even in regions with intermittent connection.

This is especially useful in frontier markets where network interruptions can slow or fail transactions. Instead of having to rely on a stable connection for every transaction, users initiate actions on their devices while the server processes them securely in the background. This approach also benefits applications with recurring transactions, ensuring payments and scheduled transfers continue processing reliably, even if a user temporarily loses internet access.

From One-Time Use to Scheduled Payments

Server-side execution is also a great choice for applications where consistent and high performance transacting is helpful. Think fast trades, automated limit orders, or reliable transaction UX like payments apps or games.

Some ephemeral applications, like trading bots, need a seamless way to process transactions without users taking constant action client-side. For example, Telegram Mini Apps and Bots like SODA or Tator Onchain leverage the Para Server SDK to enable session-based access to wallets, allowing users to make trades quickly, create games, and claim assets.

Apps built around stablecoin payments can also leverage the Para Server SDK to streamline how they handle transactions. Take PsiFi.app: it lets people send money to friends or businesses using stablecoins, all behind a clean, simple interface. PsiFi uses the Server SDK to move wallet operations to the backend – so after a user signs in once and authenticates to establish a session, things like scheduled payments, token distributions, and subscriptions can run automatically.

Whether you're handling high volumes of stablecoin transactions or managing wallet functionality for thousands of users, the Server SDK integrates seamlessly into your existing setup.

If you're exploring adding wallets to your existing infrastructure, check out the docs or get in touch to learn more.