What is the best token that acts as a gas token for a privacy-focused ZK-rollup?
Data as of Sep 21, 2026 · Based on 348 AI responses from ChatGPT Search and Google AI Mode · See how Parse measures this
Data as of Sep 21, 2026 · Based on 348 AI responses from ChatGPT Search and Google AI Mode · See how Parse measures this
Brands AI recommends here
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Source | Citation share |
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 Crypto Exchange | Bitcoin Exchange | Bitcoin Trading | KuCoinhttps://www.kucoin.com/learn/crypto/top-ethereum-zk-rollup-projects | 11% |
 Aztec Network Review: Privacy L2, Token & Airdrop Guidehttps://ventureburn.com/what-is-aztec/ | 3% |
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Aztec: Fast Privacy with ZK² Rolluphttps://aztec.network/blog/aztec-fast-privacy-with-zk2-rollup | 2% |
 The Top ZK Privacy Tokens 2026 to Watch For: An Analytical Review - ZK Rollupshttps://zkrollups.io/top-zk-privacy-tokens-2026/ | 2% |
ZK Rollups for the Crypto Blockchain Reduces Gas Feeshttps://zkrollups.io/ | 2% |
 Best Privacy Crypto Projects and Airdrops 2026 | Complete Guidehttps://zipmex.com/blog/best-privacy-crypto-projects-and-airdrops-2026-complete-guide/ | 2% |
 ZK-rollup projects: a complete 2026 guide - Alchemyhttps://www.alchemy.com/overviews/zk-rollup-projects | 1% |
ZK Rollup Projects to Look For in 2026https://zkrollups.io/zk-rollup-projects/ | 1% |
Privacy for Pennies: Scaling Aztec’s zkRolluphttps://aztec.network/blog/privacy-for-pennies-scaling-aztecs-zkrollup | 1% |
If by “gas token” you mean the token users ultimately spend to pay transaction fees, **$AZTEC / Fee Juice is currently the clearest example for a privacy-focused ZK rollup**. - **Aztec:** users bridge $AZTEC from Ethereum into **Fee Juice**, Aztec’s native fee asset. Fee Juice pays for transactions and is…
If by “gas token” you mean the token users ultimately spend to pay transaction fees, $AZTEC / Fee Juice is currently the clearest example for a privacy-focused ZK rollup.
So, if you're designing a privacy ZK-rollup and asking which token model to emulate, Aztec's $AZTEC → Fee Juice architecture is worth studying. The interesting part isn't merely the token—it is the separation between the economic token ($AZTEC) and the non-transferable fee asset (Fee Juice), plus private fee abstraction.
If you mean “what existing cryptocurrency would be best to use as the gas token for a new privacy ZK-rollup?”, that's a somewhat different design question; I can compare ETH, a native token, stablecoins, privacy coins, and an abstract/non-transferable gas token across privacy, UX, economics, and decentralization.
For a privacy-focused ZK-rollup (such as the [Aztec Network](https://aztec.network/) ), using a standard transparent token as a gas token breaks user anonymity because paying gas directly links a user's public address to their private L2…
For a privacy-focused ZK-rollup (such as the Aztec Network ), using a standard transparent token as a gas token breaks user anonymity because paying gas directly links a user's public address to their private L2 activities.
To solve this, the gold standard design is an abstracted, non-transferable shielded fee token —exemplified by Fee Juice.
If you use a transparent asset (like regular $ETH or a standard L2 token) to pay gas, an outside observer can watch the L1-to-L2 bridge or the fee deduction and immediately correlate your wallet identity with your private transactions.
You can read more about how transaction fees and execution mana are structured in the Aztec Fees Documentation.
Would you like to explore:
If you mean **“what token should a privacy-focused ZK-rollup use as its native gas/fee token?”**, there are a few different design choices. The strongest design, in my view, is **a dedicated fee asset that is economically backed by the network’s native token but can be used privately**—similar to Aztec’s current **Fee…
If you mean “what token should a privacy-focused ZK-rollup use as its native gas/fee token?”, there are a few different design choices. The strongest design, in my view, is a dedicated fee asset that is economically backed by the network’s native token but can be used privately—similar to Aztec’s current Fee Juice model.
For a privacy-first rollup, I would separate:
Aztec currently implements something close to this: $AZTEC is the network token on Ethereum, while bridged $AZTEC becomes Fee Juice on Aztec and is used to pay transaction fees. Fee Juice itself is non-transferable.
The particularly interesting part is that Aztec supports private fee payment through a fee-paying contract (FPC). That prevents the fee payment mechanism from unnecessarily revealing who paid for a private transaction.
Using ETH as gas has a major UX advantage: users already understand it and don't need another token. But for a privacy-focused rollup, it creates some awkwardness:
A dedicated gas asset lets you optimize the economics and privacy model around the rollup.
You could instead let users pay fees in USDC/USDT or another stable asset through a paymaster/FPC. This is attractive because users don't have to worry about the gas token's volatility.
The architecture could be:
User's private USDC → private fee contract → native fee asset → sequencer/prover
Aztec already supports fee abstraction through FPCs, where an application can accept another token from the user while the FPC pays the network's Fee Juice.
For a privacy-focused rollup, I'd therefore consider stablecoin payment + private fee abstraction a better UX than forcing every user to hold the native token.
I'd use something like:
| Component | Design |
|---|---|
| Network token | Native token for staking/security |
| Gas accounting | Separate internal fee unit |
| Settlement asset | Native token or stablecoin |
| User payment | Private notes |
| Fee abstraction | Built-in paymaster/FPC |
| Gas privacy | Private by default |
| Sequencer compensation | Converted/settled into native economic asset |
The key insight is that the token users see doesn't necessarily have to be the token the protocol ultimately uses to compensate sequencers/provers.
If your question is instead “which existing crypto token—ETH, AZTEC, ZEC, DAI, USDC, etc.—would be the best gas token for a new privacy ZK-rollup?”, I can compare those specifically across privacy, liquidity, volatility, MEV, regulatory exposure, and UX.
**Ether (ETH)** is the standard and most practical gas token for privacy-focused ZK-rollups (such as [Aztec](https://aztec.network/blog/aztec-zkrollup-layer-2-privacy) ), because it anchors security to Ethereum, provides deep baseline liquidity, and enables abstract fee-paying mechanics without requiring a standalone,…
Ether (ETH) is the standard and most practical gas token for privacy-focused ZK-rollups (such as Aztec ), because it anchors security to Ethereum, provides deep baseline liquidity, and enables abstract fee-paying mechanics without requiring a standalone, volatile native utility token that could compromise user metadata privacy.
| Metric / Attribute | ETH (Wrapped / Shielded on L2) | Custom Native L2 Token |
|---|---|---|
| Liquidity & Adoption | Maximum global liquidity | High initial volatility and fragmentation |
| Privacy Compatibility | Supported via zero-knowledge shielding contracts | Requires custom privacy-preserving mechanisms built from scratch |
| L1 Settlement | Direct compatibility with Ethereum base layer | Requires extra bridging/swapping steps for L1 finality |
Would you like to explore how fee abstraction works to maintain user anonymity when paying gas on private rollups?
No sources cited
If you mean **“which token should be the native gas/fee asset for a privacy-focused ZK-rollup?”**, my pick is **AZTEC**—assuming the rollup is Ethereum-aligned and privacy is a first-class feature. - **Purpose-built for privacy:** Aztec Network is specifically designed for private smart-contract execution, private…
If you mean “which token should be the native gas/fee asset for a privacy-focused ZK-rollup?”, my pick is AZTEC—assuming the rollup is Ethereum-aligned and privacy is a first-class feature.
I'd actually recommend not making the publicly transferable token itself the direct gas balance. A stronger design is:
Native token → fee-credit/fee-juice layer → gas
That lets you keep the token useful for staking/governance while making fee payment more flexible and potentially private. Aztec's architecture is a good example of this separation.
For comparison, $ZK is the native asset of ZKsync, but ZKsync's current positioning is broader than privacy-focused execution; its documentation describes $ZK primarily around governance and network economics.
Bottom line: Best existing model for a privacy-first Ethereum ZK-rollup: AZTEC + a separate Fee Juice-style gas mechanism. If you're asking because you're designing a new tokenomics model, I can also compare AZTEC vs ETH vs a stablecoin vs a native token specifically as the gas token.
When designing or utilizing a gas token for a privacy-focused ZK-rollup (such as the Aztec Network ), the ideal solution must solve a paradox: **how do you pay network fees without leaking the user’s financial metadata or breaking transaction anonymity?** If a user executing a completely private transaction has to pay…
When designing or utilizing a gas token for a privacy-focused ZK-rollup (such as the Aztec Network ), the ideal solution must solve a paradox: how do you pay network fees without leaking the user’s financial metadata or breaking transaction anonymity?
If a user executing a completely private transaction has to pay gas using a public, transparent token linked directly to their identity or wallet history, the privacy layer is compromised.
The industry-leading model for this problem utilizes a non-transferable, shielded native gas token (often styled as protocol-level fee abstraction). A prime example of this architecture is Fee Juice.
Are you looking into the architectural design of building your own ZK-rollup, or are you trying to understand how to fund and execute transactions on an existing privacy network like Aztec?
If you mean **the best native gas/fee token design for a privacy-focused ZK-rollup**, the strongest current example is probably **AZTEC / Fee Juice** rather than simply using a speculative “privacy token.” [Aztec Documentation](https://docs.aztec.network/developers/docs/foundational-topics/fees?utm_source=chatgpt.com)…
If you mean the best native gas/fee token design for a privacy-focused ZK-rollup, the strongest current example is probably AZTEC / Fee Juice rather than simply using a speculative “privacy token.”
A good gas token for a privacy ZK-rollup should optimize for:
Aztec Network uses a dedicated fee mechanism called Fee Juice. Users bridge AZTEC into the network, where it becomes Fee Juice and is used to pay transaction fees. Fee Juice is intentionally non-transferable and exists specifically for fee payment, separating the gas mechanism from a normal tradable asset.
Why this design is attractive:
| Token choice | Advantages | Problems |
|---|---|---|
| ETH | Deep liquidity, familiar, secure | Fees expose ETH balances and create UX friction |
| Stablecoin (USDC/USDT) | Predictable pricing | Less aligned with network security; regulatory concerns |
| BTC-like asset | Strong monetary narrative | Poor fit for smart-contract fee markets |
| Native privacy token | Captures network value | Volatility hurts fee UX |
| Hybrid fee token (AZTEC/Fee Juice style) | Best balance of UX, privacy, and economics | More protocol complexity |
So if designing a privacy-first ZK-rollup from scratch, I would likely choose:
Native staking/governance token + separate non-transferable fee asset backed 1:1 by the native token (the Aztec/Fee Juice model).
It gives you the economic benefits of a native token without forcing every user to think about token price volatility just to send a private transaction.
In the architecture of privacy-focused ZK-rollups, designing a gas token presents a unique dilemma: if a standard native token is used to pay gas, the transaction graph can leak metadata, link user addresses, or compromise the privacy guarantees of the network. Leading privacy ZK-rollups (such as the [Aztec…
In the architecture of privacy-focused ZK-rollups, designing a gas token presents a unique dilemma: if a standard native token is used to pay gas, the transaction graph can leak metadata, link user addresses, or compromise the privacy guarantees of the network.
Leading privacy ZK-rollups (such as the Aztec Network ) solve this using a specialized, non-transferable wrapper or abstract fee mechanism. The gold standard approach for this is Fee Juice.
What is Fee Juice?
“Fee Juice is the native fee token on Aztec, used to pay for transaction fees. It is bridged Aztec tokens from Ethereum and is non-transferable on Aztec - it can only be used to pay fees, not sent between accounts.”
Instead of a traditional speculative gas token that gets bounced around user accounts (which creates an on-chain paper trail), a privacy-first gas token functions under specific constraints:
Why this is the "Best" Approach for ZK-Privacy
If you're exploring the development or economic layer of these networks, would you like to dive deeper into how sequencers price execution (mana) or how fee abstraction and sponsored transactions work under the hood?
If you mean **the best existing token to use as the native gas/fee token for a privacy-focused ZK-rollup**, my pick is **$AZTEC**, particularly the fee architecture used by Aztec. - **Privacy-native:** Aztec is specifically designed around private execution and ZK proofs, rather than merely adding ZK scaling to a…
If you mean the best existing token to use as the native gas/fee token for a privacy-focused ZK-rollup, my pick is $AZTEC, particularly the fee architecture used by Aztec.
| Token/design | Fit for private ZK-rollup | Why |
|---|---|---|
| $AZTEC / Fee Juice | ⭐⭐⭐⭐⭐ | Designed specifically for private ZK execution |
| Custom ERC-20 gas token | ⭐⭐⭐⭐ | Excellent flexibility; ZKsync supports custom base tokens ZKsync Docs |
| $ZK | ⭐⭐⭐ | Strong ZK ecosystem token, but currently primarily governance; its future role as a gas token depends on network governance/architecture ZKsync |
| ETH | ⭐⭐⭐ | Excellent liquidity and neutrality, but not ideal if privacy of fee payment is a core requirement |
The important distinction: I wouldn't necessarily make the tradable token itself the gas asset. For a privacy rollup, the cleaner design is $AZTEC → private/non-transferable fee credit → gas payment, similar to Aztec's Fee Juice model. That reduces the amount of transactional information exposed by the fee mechanism.
If you're designing a new privacy ZK-rollup and choosing a tokenomics model, I can also compare AZTEC vs ETH vs a stablecoin vs a new native token specifically on privacy, MEV, volatility, liquidity, and token value accrual.
In a privacy-focused ZK-rollup (such as the [Aztec Network](https://aztec.network/blog/aztec-zkrollup-layer-2-privacy) ), designing a gas token presents a unique paradox: **if you pay gas using a transparent, publicly linked token (like standard ETH), you risk leaking your metadata and deanonymizing your private…
In a privacy-focused ZK-rollup (such as the Aztec Network ), designing a gas token presents a unique paradox: if you pay gas using a transparent, publicly linked token (like standard ETH), you risk leaking your metadata and deanonymizing your private transactions.
To solve this, leading ZK-rollups utilize specialized or abstracted internal gas mechanics rather than forcing users to expose their main wallet identities.
The Ideal Solution: Shielded Gas / "Fee Juice"
The most effective approach implemented in state-of-the-art privacy ZK-rollups is a native protocol-level internal credit or shielded gas mechanism—such as Fee Juice on Aztec.
$AZTEC ) that can be shielded.Key Requirements for a Privacy L2 Gas Token
If evaluating what makes a token "best" for this role, it must fulfill these criteria:
If you are looking into a specific protocol like Aztec or exploring fee abstraction design for a custom rollup, let me know and we can dive deeper into how shielding mechanics or paymasters handle private transaction fees.
