L1 Settlement, L2 Estimation

Optimized Gas Settlement for Maximum Savings

Blocknative helps L2s optimize how they settle to the Ethereum L1. We also provide best-in-class L2 gas estimation to support wallets, traders, and developers. 

L2 Gas Estimation (2)

In-App Simulations

Transaction Protection

Built for Developers

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Built for Developers


We know how important your wallet's UX is so we built our suite of tools to be fully customizable.

Themable elements and powerful customization improves technical productivity so you can focus on what matters most. Blocknative products are open-source, easy to integrate, and up to date with the latest protocol changes. Our dedicated team is backed by a powerful community and regularly ships updates.

Cost Savings Writing to the L1

Save Money Through Predictive Gas Modeling for Type-2 and Type-3 Transactions

In February of 2024, L2 networks spent over 11,400 ETH (>$43M USD) writing to the Ethereum L1. 

As the leading provider of predictive gas estimation, Blocknative can help you optimize your Type-2 and Type-3 transaction fees to drive real savings for your ecosystem. 

Contact us to learn more and see how much we can save your ecosystem. 

Contact Us

Decoding on Ethernow Gives your Ecosystem:

Real-time batch transaction decoding & developer API access

Accurate L2 Gas Estimation

Improve Fee Estimation
On Your L2


Blocknative's Observability Platform 

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Seamlessly Connect to 40+ wallets

Blocknative’s Web3 Onboard is an open-source library that enables dapps to easily connect 40+ wallets, preview transactions, deliver real-time notifications, and more through a great developer UX.

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Simulate Transactions In-App

Capture, normalize, and enrich in-flight transaction data for unmatched data coverage and sub-transaction resolution.

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Notify Users in Real-Time

Powered by our mempool API, we radically simplify integrating live transaction event data streams into your dapp. We capture every state change for every transaction, including pending, stuck, failed, dropped, sped up, cancelled, and confirmed. 

Globally, in real-time, and 24x7.  

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Display Accurate Gas Prices

Save your users money with the industry's most accurate gas prediction tool. By predicting gas fees based on real-time data and predictive modeling, there is a 16% average reduction in max fee.

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USDT-ETH Uniswap


  "status": "confirmed",

  "monitorId": "GETH_1_F_PROD",

     "monitorVersion": "0.82.2",

  "timePending": "18769",

  "blocksPending": 2,

  "pendingTimeStamp": "2021-04-29T16:43:07.754Z",

  "pendingBlockNumber": 12336509,


  "from": "0x977A553DCf6025C876375706F2B98818414910dA",

  "to": "0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D",

  "value": "0",

  "gas": 197838,

  "gasPrice": "104000000000",

  "gasPriceGwei": 104,

  "nonce": 2148,

  "blockHash": "0x931e057c93e8b752fb2f2c35aa144bd8e1442000db923edc381360cf02a8d8fe",

  "blockNumber": 12336511,

  "transactionIndex": 49,

  "v": "0x26",

"s": "0x32511db119370e26893135d1e87e2cb2fdfe524aca4e8edb795ffdf3c353fc6f",

For Traders

Power your trading strategies with real-time mempool data — the easy way.

Use Blocknative's end-to-end suite of developer tools to incorporate real-time mempool monitoring into your project.


The stakes – and the risks


Visualize transaction streams and prototype strategies now with Mempool Explorer.


What others are saying

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Dan Elitzer

If you’re a builder or user of DeFi protocols and you aren’t paying attention to the mempool, you’re flying blind.

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Calvin Liu

@blocknative are masters of the mempool - the most opaque yet critical step in processing a blockchain transaction

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Taylor Monahan

"Check the mempool.”
That Is literally the problem.
Now, before you blow up on me...

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Zach Krasner

Remember 10 years ago when a package delivery was just a black hole with no info on estimated delivery? That’s where Ethereum gas is today, but @blocknative’s introducing a game changer

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cl Ξ m

As we've seen in the past week good gas price oracle solutions are critical to the ecosystem, really glad to see this from Blocknative ... OpenZeppelin Defender will include it in its gas price oracle pool

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Jonathan Alexander

As we've seen in the past week good gas price oracle solutions are critical to the ecosystem, really glad to see this from Blocknative ... OpenZeppelin Defender will include it in its gas price oracle pool

Bring This To Your L2

We are excited help your protocol save money on writing down to the L1. We'll investigate potential cost savings and help you execute on a plan.