> ## Documentation Index
> Fetch the complete documentation index at: https://docs.allium.so/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

> Build wallet-centric applications with realtime balance, transaction, and activity data.

Allium's Wallet APIs provide a comprehensive, wallet-centric view of blockchain data to power wallets and applications. Use cases range from data-rich activity feeds to block-level historical token balances.

**Supported Networks:** Most major EVMs, Solana, and Bitcoin

## Key Features

<CardGroup cols={3}>
  <Card title="Realtime Balances" icon="coins">
    Fetch current token, NFT, and SOL balances for any wallet address
  </Card>

  <Card title="Historical Balances" icon="clock-rotate-left">
    Query token balances at specific points in time for tracking and analysis
  </Card>

  <Card title="Transaction Data" icon="arrow-right-arrow-left">
    Access detailed transaction history with activities, transfers, and labels
  </Card>
</CardGroup>