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

# Features

> Key features of Privy wallets including signing, gas sponsorship, MFA, and cross-chain support

Privy's wallet infrastructure gives you the flexibility to manage key signing directly or integrate onchain infrastructure like smart accounts out of the box. Wallets ship with:

* **Cross-chain usage**: Create and manage wallets on all EVM- and SVM-compatible blockchains, including Ethereum, Solana, Tempo, Base, Arbitrum, HyperEVM, and Eclipse. Privy also supports [many other chains](/wallets/overview/chains), such as Bitcoin, Spark, TRON, Stellar, and more.
* **Robust transaction controls**: Execute arbitrary transactions with wallets, such as transferring funds and interactions with smart contracts. Make transactions idempotent to ensure that they are only submitted once in case of a retry.
* **Onchain indexing**: Broadcast transactions onchain and register event listeners (via [webhooks](/wallets/gas-and-asset-management/assets/transaction-event-webhooks)) on transaction status, deposits, and withdrawals.
* **Powerful policy engine**: Enforce granular policies what actions a wallet can take, set allowlisted contracts or recipients, maximum amounts to be transferred, restrictions on smart contract calldata, and more. Enforce MFA on transactions, require approval signatures from a quorum of parties, and more. [Learn more](/controls/overview)
* **Authorization controls**: Cryptographically enforce a chain of required approvals on wallets from `m-of-n` parties to execute certain wallet actions.
* **Automated gas sponsorship**: Never worry about topping up a wallet. Keep wallets loaded to pay for transactions at all times. [Learn more](/wallets/gas-and-asset-management/overview)
* **Rich onchain integrations**: Leverage features like Privy's wallet UI components, RainbowKit connector, transaction and balance webhooks, or automated gas management to streamline your integration with the blockchain.