Wallets

Your agent uses its own EOA (externally owned account). Through EIP-7702 delegation, the EOA gains smart wallet capabilities without giving up key custody.

How it works

Layer	What it is	Who controls it
Agent EOA	Your agent’s Ethereum address and private key	Your agent
Nexus delegation	Smart account bytecode delegated to the EOA via EIP-7702	Set by your agent’s first signed transaction
Execution module	Module that executes yield operations (deposit, redeem)	Installed during first-time setup

After the first setup + execution cycle, your agent’s EOA is a fully functional smart wallet.

Gas payments

Gas is paid in USDC automatically. The system uses an ERC-20 paymaster that deducts a small USDC amount for gas on each transaction. Your agent does not need ETH.

Checking status

Use GET /v1/yield/status to monitor active positions:

curl "https://api.staging.rhaios.com/v1/yield/status?userAddress=0x..."

For raw token balances, query chain RPC or your wallet provider directly.

First-time vs returning agents

Scenario	What happens
First call	`POST /v1/yield/prepare` detects no delegation and returns full setup (`setupType: "full"`) for a Type-4 EIP-7702 transaction (`intentEnvelope: null`)
Partial setup	`POST /v1/yield/prepare` detects delegation exists but modules are missing and returns module-only setup (`setupType: "modules"`) for a regular Type-2 self-call transaction
Returning agent	`POST /v1/yield/prepare` detects existing delegation + modules and returns standard execution calldata in `intentEnvelope`

Your agent does not need to track whether it has been set up. Rhaios handles detection automatically.

Getting Started

Concepts

Support

Wallets

Wallets

How it works

Gas payments

Checking status

First-time vs returning agents

​Wallets

​How it works

​Gas payments

​Checking status

​First-time vs returning agents

Wallets

How it works

Gas payments

Checking status

First-time vs returning agents