> ## Documentation Index
> Fetch the complete documentation index at: https://na-834f3010.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Web3

> EVM balance, transfer, approve, contract, logs, and typed data.

Reads need no wallet. Writes require **Connect wallet** and use Privy `sponsor: true`.

| Action                       | When to use                                 |
| ---------------------------- | ------------------------------------------- |
| Get native balance           | Check ETH/POL/USDC gas on a supported chain |
| Get ERC-20 balance           | Token balances                              |
| Transfer native / ERC-20     | Send from the linked wallet                 |
| Approve / Check allowance    | ERC-20 spenders                             |
| Read / Write contract        | Hex calldata `eth_call` or sponsored send   |
| Get transaction / Query logs | Receipts and events                         |
| Sign typed data              | EIP-712                                     |

Networks: Ethereum, Base, Arbitrum, Optimism, Polygon, Arc Testnet.