Blocknative
Real-time transaction monitoring & gas prediction infrastructure
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Blocknative is a blockchain infrastructure provider specializing in real-time on-chain transaction data and monitoring services. Its core products revolve around mempool data, offering APIs and SDKs for transaction status tracking, gas fee prediction, and transaction simulation. Developers can integrate lifecycle notifications to enhance user experience, or utilize its data interfaces for on-chain analysis and trading strategy research. The technology is built on real-time capture and parsing of mempool data across Ethereum and major Layer 2 networks.
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About Blocknative
Blocknative is a Web3 infrastructure provider specializing in real-time mempool data, gas fee estimation, and transaction monitoring. Its core product suite includes high-frequency gas price prediction APIs (over 600 estimates per second), historical mempool data archives, wallet onboarding tools, and the Gas Network—an onchain protocol designed to decentralize gas price data across Ethereum and major Layer 2 chains like Optimism, Arbitrum, Base, Polygon, and Sei.
The company's core value proposition lies in making gas markets transparent and programmable. It addresses the industry-wide pain point of inaccurate fee estimation and unpredictable transaction costs, which often lead to failed transactions and poor user experience. By providing granular mempool visibility, Blocknative helps developers optimize transaction timing, reduce costs, and troubleshoot network issues.
In the past six months (February to August 2026), Blocknative underwent a significant transition. The company announced it was winding down operations, with its API services and Gas Network scheduled to shut down after June 19, 2026. This followed a year of contraction, including layoffs in 2025 and the earlier suspension of its MEV-Boost Relay service. The Blocknative team was acquired by Deloitte in a talent-focused deal, marking a notable case of traditional professional services firms absorbing crypto-native infrastructure expertise. This development signals a broader industry trend of consolidation and the growing intersection between traditional audit/compliance and blockchain infrastructure.
Blocknative was founded in 2018, focusing on Ethereum mempool monitoring and gas fee prediction, providing real-time transaction visibility tools for wallets, protocol teams, and institutions. In November 2020, it raised $5 million led by Blockchain Capital; in December 2022, it secured a $15 million Series A-1 round. Its research revealed that private transactions dominate Ethereum order flow, consuming over 50% of gas and impacting transaction fairness. In 2026, the team joined Deloitte to focus on Web3 innovation; its standalone API services and Gas Network will cease operations on June 19, 2026, marking the end of its independent infrastructure provider status.
Matt Cutler: Co-founder & CEO. Previously founded Visible Measures and NetGenesis. LinkedIn: linkedin.com/in/mcutler. Twitter: @mcutler.
Sean O'Connor: COO. First employee at Blocknative, previously at ConsenSys (Cellarius). LinkedIn: linkedin.com/in/aseoconnor. Twitter: @aseoconnor.
Blocknative has undergone significant team changes recently. Co-founder and CTO Chris Meisl departed in May 2026, ending his tenure since October 2018.
According to related online sources, the Blocknative team has joined Deloitte as a whole, and the company is gradually ceasing operations, with its API and Gas Network services scheduled to be shut down on June 19, 2026. This change marks the end of independent operations for this Web3 infrastructure company focused on mempool visibility and gas fee prediction.