Skip to main content
When a user sells native ETH through Delta, the ETH is represented as dETH, the Delta Wrapped Native token, wrapped 1:1. The user still signs one off-chain order and pays no gas, and because of how dETH is set up there’s no need for an ERC-20 approval on the source side. You don’t deploy or call anything extra: pass the native placeholder as srcToken and the relayer handles the rest.

​
What dETH is

dETH is an ERC-20 (the DeltaWrappedNative contract) that wraps the chain’s native token 1:1: ETH on Ethereum, BNB on BSC, and so on. Its underlying is the chain’s wrapped native (WETH), so dETH and native are interchangeable at a 1:1 rate. The Delta contract holds delegated access to a user’s dETH. That’s what lets a native-ETH Delta order settle without a separate ERC-20 approval: the user signs the order, and settlement moves the wrapped balance on their behalf. An ERC-20 source token still needs its one-time approval; native ETH does not.

​
Using it

Selling native ETH is the normal Delta swap flow with one difference: you skip the approval step. Pass the native placeholder as srcToken: 
0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE
Quote, build, sign, and submit exactly as you would for an ERC-20 source. The relayer resolves the placeholder to dETH, and the order settles and delivers the destination token the same way.

​
Where it’s available

dETH is deployed alongside the Delta contract, so native ETH works as a Delta source on every chain where Delta is available. It lives at the same address on each of them: 
0x0a0d53b6684c7b32b4cbef5fe8483bfcc8406742
This address is for reference and on-chain verification. In the API flow you pass the native placeholder 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE as srcToken, and Velora maps it to dETH for you. The Chains & contracts table is the canonical list of Delta-enabled chains. Where Delta isn’t deployed, use a Market swap instead.

​
Unwrapping back to ETH

dETH works like WETH in both directions, so it’s never a lock-in. Any dETH a user holds can be unwrapped back to native ETH at any time, 1:1, by calling withdrawNative on the dETH contract: 
withdrawNative(uint256 amount, address owner, address receiver)
It burns the dETH and sends native ETH to receiver. The owner can call it directly; the Delta contract can also do so on their behalf during settlement. This is the same wrap/unwrap model as WETH: depositNative mints dETH 1:1 (and sending ETH straight to the contract wraps it automatically), and withdrawNative redeems it. So if a user ever holds a dETH balance, the unfilled remainder of a cancelled or partially filled order, for example, they can convert it back to ETH whenever they want. dETH is a normal ERC-20, so unwrapping isn’t the only exit. A user can also swap it to ETH (or any token) through a Market swap, which routes dETH through the aggregator like any other token. In the Velora app that’s a prefilled swap link, for example dETH to ETH on Ethereum: 
https://app.velora.xyz/#/swap/0x0a0d53B6684C7B32B4cBeF5fE8483bFcc8406742-0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE/1/SELL?network=ethereum
dETH can also hold yield-bearing positions for Productive orders, where the wrapped balance earns yield in a strategy while the order rests. That’s a separate, advanced flow and isn’t covered here.
Last modified on June 10, 2026