SIMULATE EVERY PENDING TRANSACTION

Now you can know what will happen next.

Every second, hundreds of new transactions appear in the mempool. Many of these involve opaque internal transactions.

Blocknative Simulation Platform simulates, in real-time, every marketable transaction against the current block state. It calculates the likely outcome of these transactions.

Simulation Platform lets you know what will happen next. You can protect your protocol. You can trade with an edge. And more.

Currently available on Ethereum Mainnet.

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A net-new capability for the Ethereum ecosystem.

Simulation Platform is built on top of Blocknative's global mempool data infrastructure.

Blocknative inspects all broadcast pending Ethereum transactions and predicts which are likely for inclusion in the next block. Our transaction simulator provides probabilistic outcomes of these imminent transactions, including contracts involved and net balance changes.

Read our transaction simulation announcement post.

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A new level of protocol security.

Our Ethereum simulator helps builders by revealing how your protocols are about to be used in the real-world.

This enables you to build alerts that can detect and respond to anomalous transactions – including exploits and attack-shaped transactions.

Trade with an edge.

Simulation Platform computes the complete outcomes of pending transactions, helping traders know what will happen in the next block.

Smart contract simulation can make existing strategies more profitable. It can also enable new classes of trading strategies.

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Detailed payloads.

Each Simulation Platform API event is a rich JSON payload, including detailed traces of each smart contract function call and net balance change. We even include performance metrics on the Ethereum simulation process itself.

Some complex internal transactions can result in detailed API events that are hundreds of lines long. Go hands-on in Mempool Explorer to see the payloads in action.

Try Mempool Explorer

Built to be integrated.

Like all of Blocknative's offerings, Simulation Platform is designed from the ground up to be composable. It is fully programmable via our proven API and SDK.

Simulation Platform is documented, supported, and actively maintained. The most robust Ethereum transaction builder is at your fingertips.

Read the docs

High scale. Low latency. Unmatched completeness.

For Ethereum simulations to be actionable, they have to be delivered quickly. Blocknative computes and delivers significantly faster than both Parity and Geth. This gives you a head start so that you can take action on events that are likely to happen.

Simulation Platform is a new component of the Blocknative Advantage.

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What others are

saying:

Dan Elitzer

@delitzer

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

mariano.eth

@nanexcool

Blocknative continues to democratize access to the mempool and its secrets.

The new Simulation Platform is incredible. With new traders coming in everyday looking for profit opportunities in #Ethereum this tool will get them up to speed really fast.

Ian

@ ianIDEO

All Ethereum-based DeFi teams should utilize this simulation platform to intercept attacks before they happen via the mempool.

Aleks Larsen

@ _alekslarsen

The rise of MEV brings big challenges in how to defend yourself in the dark forest. Blocknative's new Simulation Platform is a big step forward for protocols and traders - it simulates the entire mempool in real time to help guard against malicious txs and spot profit opps.

Connect with us. Build with us.

We love to connect with teams who are building with Blocknative. Tell us about your team and what you would like to learn.

"Fast and reliable access to mempool data is an indispensable part of blockchain infrastructure for trading, research, contract execution, compliance, and more. But the difficulty in global node operations, network optimization, and mining pool collaboration necessitates a dedicated, expert solution. We are long-term users and partners of Blocknative and thrilled to be part of this round to explore even more usage of mempool data.”

Ricky Li Co-Founder, Altonomy