> ## 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.

# Signing and RPCs

> Send JSON-RPC requests and sign messages or transaction payloads directly with Privy wallets

Privy enables you to interface directly with wallets by sending JSON-RPC requests or directly requesting signatures over messages and transaction payloads. This allows you to use Privy for **low-level key management** and achieve ***any* onchain use case** with Privy wallets.

<img src="https://mintcdn.com/privy-c2af3412/xvj7sxQ8SLxi5bGo/images/rpc-splash.png?fit=max&auto=format&n=xvj7sxQ8SLxi5bGo&q=85&s=7c732769c8e92f4ab80fa3d478e13f18" alt="RPC splash" width="3686" height="2633" data-path="images/rpc-splash.png" />

## Taking actions with wallets

To take an action (such as a transfer or swap) with a wallet in Privy, there are two approaches.

| Integration                                                       | Functionality                                                                                                                                                             | Recommended for                        |
| ----------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------- |
| [Wallet action APIs](/wallets/actions/overview#available-actions) | Execute common onchain flows such as transfers, swaps, DeFi, and more via a simple, intuitive interface. Privy handles the onchain complexity.                            | Most use cases                         |
| [Low-level RPC](/wallets/using-wallets/ethereum/sign-a-message)   | Compute raw signatures and execute EVM and SVM JSON-RPC requests. Requires developers to construct their own transaction payloads and facilitate multi-transaction flows. | Custom use cases and lower-level flows |

While using **wallet actions** is generally recommended for most use cases, your application may need to interface with wallets directly for more custom functionality. This is fully supported in parallel with wallet actions via RPCs.

## Using RPCs

For Tier 3 chain types, Privy supports the standard set of JSON-RPC methods for that chain type (e.g. [EIP-1193](https://eips.ethereum.org/EIPS/eip-1193) for EVM chains including [Tempo](https://tempo.xyz)) – including message signing, transaction signing, and transaction broadcasting. View guides for using each of these JSON-RPC methods with Privy in the left navigation.

For Tier 2 and Tier 1 chain types, Privy supports using the wallet's private key to sign custom payloads – allowing you to construct transactions of your choosing and sign them with the wallet. Your application can then broadcast this signed transaction to the chain to execute it.