FlexGas - Pay for Gas with TWT, USDT, or BNB

Ethereum just took a big leap forward with its latest upgrade — and so did Trust Wallet.

As part of our commitment to simplify Web3 for everyone, we’re proud to be the first major wallet to support EIP-7702 — a new standard that enhances EOAs (Externally Owned Accounts) with smart account features without giving up self-custody.

And with this upgrade, we’re excited to introduce FlexGas: a smarter, more flexible way to pay for gas.

What Is FlexGas?

FlexGas lets you pay for gas fees using TWT, USDT, on top of ETH & BNB, — so you don’t need to keep a separate stash of native tokens just to cover transaction fees.

That means:

• No more juggling token balances

• No more failed transactions due to insufficient gas

• A smoother, more flexible & intuitive wallet experience

How it Works

Using FlexGas is simple:

1. Initiate a transaction as usual (Send crypto)

2. Tap on the “Network fee” option

3. Choose BNB, TWT, or USDT (on BSC), and ETH or USDT (on Ethereum) to pay the gas

4. Done — Trust Wallet handles the rest behind the scenes.

FlexGas uses the power of EIP-7702 to let your EOA temporarily act like a smart account — just long enough to allow alternative gas payments — then reverts back to your regular self-custodial wallet.

Learn more about EOA vs Smart Contract Wallets

Supported Actions

You can use FlexGas for Sending tokens. Update your app to the latest version to enjoy this feature.

Swapping tokens capability will be rolled out soon. Stay tuned.

Supported Tokens

FlexGas currently supports:

• TWT

• USDT

• BNB

• ETH

More token options are on the way.

Live on BSC & Ethereum

The feature is currently available on the following networks:

• BNB Smart Chain (BSC)

• Ethereum

We’re working to bring FlexGas to more networks soon.

Security First

FlexGas is built with Trust Wallet’s core principle in mind: you own your keys, you control your assets.

While FlexGas leverages EIP-7702 to enhance your wallet with smart account features, your wallet stays self-custodial at all times. You initiate and approve every action — and your private key remains in full control.

In Trust Wallet, delegation is tightly controlled for your protection:

• You can only delegate to Trust Wallet’s own secure infrastructure

• This means there’s no external delegation risk and no phishing attack vector tied to this mechanism.

This means:

• No approvals to random contracts

• No new keys or seed phrases

• Fully opt-in, and fully under your control

Security is never an afterthought — it’s built into every layer of FlexGas.

Why It Matters

FlexGas isn’t just a convenience feature — it’s a step toward making crypto more accessible. By removing the friction of gas payments and reducing failed transactions, we’re making DeFi, NFTs, and everyday on-chain activity easier for everyone.

Plus, it’s fully non-custodial and opt-in — you stay in control of your keys and your funds, always.

Best Practices & Notes

• Your chosen gas token (TWT, USDT, ETH & BNB) must be held on the same address you're sending from

• You can still choose to use the native gas token if you prefer

• Make sure your app is updated to the latest version of Trust Wallet

• FlexGas does not compromise on security — your private key stays in charge, always.

A Glimpse Into the Future

FlexGas is just the beginning. With EIP-7702 unlocking the door to smart account capabilities — like token-based gas, programmability, and seamless batching — we're building a more powerful and user-friendly wallet experience for millions of users around the world.

Stay tuned — more innovations are coming soon.

Disclaimer: Content is for informational purposes and not investment advice. Web3 and crypto come with risk. Please do your own research with respect to interacting with any Web3 applications or crypto assets. View our terms of service.

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Note: Any cited numbers, figures, or illustrations are reported at the time of writing, and are subject to change.