Blocknative

With Blocknative, you get access to mempool data across multiple chains, including Ethereum, Polygon, Binance Smart Chain, Fantom, and Bitcoin. You can see what is happening and what will happen next on the public blockchain networks. Blocknative powers many Web3 developers, DeFi protocols, and infrastructure projects, including Curve, Compound, Synthetix, Balancer, Bancor, Yearn, Badger, Gitcoin, Optimism, Aavegotchi, and the Ethereum Foundation.

Product suite overview

Blocknative’s product suite includes:

Mempool Explorer — Monitor real-time transaction event streams.
Web3-Onboard — Quick and easy way to add multi-wallet support to your Web3 project.
Mempool API & SDK — The API and SDK makes mempool data easy to build with and integrate.
Gas Platform API — Get accurate gas estimations with full EIP-1559 support. Available as a browser extension.
Simulation and Preview API — Monitor smart contract internal transactions and token net balance changes across all major DeFi protocols and DEXes.

How traders use Blocknative

Gain real-time visibility into internal transactions and net balance changes of any swap across every DEX or aggregator.
Preview every scenario to pick the most profitable opportunities.
Increase your profitability using best-in-class next block gas estimation.
Build new strategies analyzing and modeling billions of rows of mempool archival data.

How builders use Blocknative

Connect to every major software and hardware wallet in less than 5 minutes.
Deliver real-time notifications on every transaction status update, including speedups, cancels and replacements.
Preview transactions to optimize slippage and prevent costly transaction reverts.
Provide best-in-class cost-saving gas estimation with the EIP-1559 compliant Gas Platform.