Polymer Launches Ethereum Rollup Real-Time Interoperability Solution

Polymer Labs has officially launched Polymer Hub, a real-time interoperability protocol for connecting all Ethereum rollups. By streaming messages, states, and logs based on IBC primitives (equivalent to TCP/IP for Web2), Polymer Hub verifies and stores header information for all connected rollups, enabling applications to prove arbitrary states across rollups with extremely low overhead.
In the past, rollup/L2 ecosystems were typically connected only within their own closed environments; however, with Polymer, rollups can now communicate across ecosystems and coordinate at a speed that matches the speed of block production. The protocol provides significant improvements in latency, bandwidth, and cost of cross-chain communication compared to existing solutions, and applies to all on-chain primitives.
Polymer aims to make cross-chain interoperability as fast, efficient, and affordable as blockspace itself, enabling Ethereum applications to scale to the next million users.
Improve bandwidth and reduce latency
Real-time, high-throughput rollups are coming, but existing interoperability protocols (peer-to-peer and hub-and-spoke models) are not designed to support dense network traffic between hundreds of rollups. The team says existing solutions are too slow and costly to build next-generation applications on Ethereum. As we enter this new era, interoperability solutions must reach new levels of speed and efficiency. Real-time applications require real-time interoperability.
Polymer aims to build the fastest and most efficient interoperability protocol for the next generation of rollups, such as MegaETH. Hub enables real-time messaging through sorter pre-confirmation, ensuring that the latency of cross-chain communication can keep up with the millisecond block times of these rollups. At the same time, Polymer also uses EigenDA to expand cross-rollup bandwidth to support on-chain data-intensive use cases.
Lei Yang (MegaETH Co-founder and CTO) said, “Real-time, the ability to respond to inputs with ultra-low latency at scale, will enable truly groundbreaking decentralized applications. Preparing the infrastructure for this revolution will be a joint effort, in which the real-time interoperability provided by Polymer will play a key role.”
Various technologies, such as shared sorters and ecosystem-native interoperability intranets, have divided Ethereum into multiple rollup clusters; however, these clusters can interoperate with each other in minutes rather than months through the one-to-many architecture of Polymer Hub. Polymer Hub is also the first interoperability solution to provide reorganization protection. This helps enable the token bridge and solver network to securely settle cross-chain transactions in milliseconds and automatically roll back transactions if they deviate from Ethereum L1 history.
Future Outlook
The new generation of on-chain applications will draw on the architecture of cloud applications, rollup will become a new microservice, and AVS will become a new basic service. In order to achieve horizontal expansion on the chain, the cross-chain infrastructure must have low latency, high bandwidth, and be able to scale cost-effectively.
The Polymer team is committed to improving interoperability to support the construction of competitive and innovative on-chain applications such as high-throughput e-commerce and ride-hailing. Vikram Arun (Co-founder and CEO of Superform Labs) said, "To make crypto technology practical again, it is necessary to build interoperable applications that do not compromise on cost and latency. At scale, this connection layer needs to be as robust and secure as the Ethereum base layer, and Polymer has always adhered to this goal."
Polymer will start with the OP stack and plans to bring real-time interoperability to all rollup ecosystems on Ethereum, enabling rapid and low-cost expansion of applications in the future. In addition, developers who want to experience the Polymer Hub mainnet can visit the official website of Polymer Labs or follow it on the X platform for more details.
About Polymer Labs
Polymer Labs provides real-time, high-throughput interoperability for Ethereum rollups. Polymer builds the foundational network infrastructure that enables the next generation of internet-scale applications like Uber to be implemented on the blockchain.


