Optimism tests stake-based gas priority on OP mainnet: fee changes explained

This article is for informational purposes only. Always verify information independently before making any decisions.

On May 26, 2026, Optimism began trialing a stake-based gas priority system on OP mainnet, directly tying transaction inclusion to OP token staking. User transaction priority now depends on the amount of OP tokens staked—higher-staked users get preferential blockspace access. Validators receive execution fees, and the model aims to reduce spam while improving alignment for both users and block producers. Spam resistance relies on the 1.25 OP minimum required for influence, according to Optimism Documentation.

On this page: Components of the Optimism fee system

These mechanisms reduce manual errors and synchronize all incentives with OP token economics, creating a feedback loop that rewards active network participation and defends against exploits. As of mid-May, the ‘ExecutionFeeVault’ carried a rolling balance near 87,300 OP, while the ‘L1FeeVault’ held over 52,700 OP.

Automated flows remove the need for manual payments, and since fee allocation is now tied to OP staking, reward emission logs show a 26% quarter-on-quarter increase. OP stakers are increasingly represented among recipients, with eligible wallets building 19% in the past six weeks.

Fee vaults give stakers and validators predictable share calculations, eliminating arbitrary payout delays and securing equal access for everyone. All transactions are logged with hash and recipient on mainnet, providing an auditable history. Combined network fee vaults released 296,000 OP of rewards over three months by May 25, 2026.

Optimism Tests Stake-Based Gas Priority On Op Mainnet:…

Node operators have access to step-by-step instructions for running validators, setting commission rates, and qualifying for fee participation. Wallet developers and partners use source code repositories, integration blueprints, and testnet endpoints via Optimism Documentation. Workshop materials explain vault timing, operator metrics, and consensus health. Test frameworks let new nodes simulate fee cycles without risking funds. As of May 2026, more than 350 validator wallets have registered with OP staking contracts.

Execution gas fee: Stake-weighted priority and network access

The execution gas fee now depends partly on a user’s OP staking position. Block inclusion prioritizes accounts staking more OP tokens, letting them secure better throughput even when blocks are nearly full. The protocol splits the execution fee into a base component for validators and a variable one for active OP stakers. Average execution gas fees on Optimism during the past week ranged between 0.00013 and 0.0031 OP per transaction.

Every block recalculates eligible stakers, so larger stakers adapt quickly to network demand and maintain access. As blocks fill, stake—not just paid fee—sorts transactions. The 1.25 OP minimum required for staking queue entry means each additional OP staked raises user auction priority for blockspace. The highest-stake user in 1,000 recent blocks held between 85–220 OP, with minimum staking queue sizes now exceeding 7,100 OP in active blocks.

L1 data fee: Settlement cost and its variability

Posting OP mainnet transaction data to Ethereum Layer 1 incurs an L1 data fee, central to Optimism’s rollup security model. This charge is independent from execution gas fees and calculated from transaction calldata size, batch volume, and prevailing Ethereum gas price. The average L1 data fee per block between May 15–21, 2026, ranged from 0.0089 to 0.018 OP. Fee spikes match Ethereum congestion, notably during DEX and NFT surges.

During high on-chain activity, L1 data fees can make up the largest share of total transaction cost for OP users. Market surges and climbing payloads intensify this impact. L1 data fees pass security costs directly to users—no subsidies. Fee volatility can change hourly, with the highest 10% of days in Q2 seeing over 2.1x shifts.

Operators batch up to 4,100 transactions in quiet periods, but batches drop below 650 at peaks. Fewer, larger batches cut per-unit costs but delay settlement. Frequent smaller batches increase costs by putting many transactions on L1 without delay. Optimism and other rollups recommend explorers with gas overlays to time transaction sends and cut overruns. Upstream Ethereum gas changes directly affect Optimism fee schedules, so users and devs stay alert.

Operator fee: Direct incentives for node operators

Optimism node operators earn a direct fee equal to a set percentage of execution and L1 data fees per block. Operators’ default share is 10%, but governance can revise it. Operator compensation improves on legacy rollups, whose sequencers earned less. Reward data shows operator compensation in May 2026 averaged 13,250 OP weekly.

Operators who lock more OP boost compensation over time, matching scale to network contribution. Incentive curves show marginal rewards rise up to about 16% above minimum for top validator addresses. On-chain contracts automate the payout distribution, and emission rates are published for review. Mainnet payouts are tracked through Blockscout and custody dashboards like BitGo.

OP Mainnet stats by Blockscout now show every operator’s share per epoch, so community members can audit payouts.

Fee vaults: Automated, transparent rewards for all

Combined network fee vaults released 296,000 OP of rewards over three months by May 25, 2026. This replaces older manual withdrawal systems. All transactions are logged with hash and recipient on mainnet, offering an auditable history. Reward emission logs show a 26% quarter-on-quarter uptick since fee allocation was tied to OP staking.

Fee vaults assure stakers and validators they can forecast their share, bringing predictability to an otherwise complex allocation system. Vault contracts eliminate arbitrary payout delays, securing equal access for all. OP stakers now form a expanding proportion of recipients, marked by a 19% increase in eligible wallets joining in the last six weeks.

Next steps: Metrics, governance, and protocol checkpoints

Dashboards now reveal stake concentrations, validator churn, congestion frequency, and gas queue latency in real time. Q3 targets include reaching 500 unique stakers per daily block cycle—twice May’s starting level. If validator churn exceeds 12% per two weeks, review sessions on operator fees will trigger.

Execution fees, operator batch success, and payout delays form the core health metrics. By mid-June, congestion and distribution analyses will reveal if fee models encourage broad participation or stake centralization. The design goal is that fewer than 7% of all queue transactions belong to a single address per block, tracked by OP staked.

• Stake-based gas priority gives direct throughput advantages to OP token holders, making active participation valuable.
• Network congestion, fairness in inclusion, and operator performance under stress will inform future protocol changes.
• Governance retains final authority to adjust minimums, percentages, or payout rules in response to evolving conditions.
• All fee vaults provide verifiable, transparent rewards to stakers, validators, and operators through open on-chain code.