Chainlink integrates data feeds with Polygon zkEVM
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Chainlink has integrated its data feeds for Polygon zkEVM, with access to external price data now live. Announced on December 15, the integration enables smart contracts on Polygon to receive secure and reliable off-chain data, enhancing functionality and expanding the network’s potential use cases.
Chainlink’s data feeds employ multiple layers of decentralization at the price data, oracle node, and oracle network levels. This design ensures a degree of resilience against API downtime, flash crash outliers, and data manipulation attacks such as flash loan exploits.
According to Polygon Labs, developers who build on Polygon zkEVM have access to an environment fully compatible with the EVM (Ethereum Virtual Machine) at a byte-code level. Most Ethereum-native tooling and infrastructure can be used out of the box, requiring minimal changes. With the integration, builders on Polygon zkEVM may utilize Chainlink’s feeds to develop and deploy dApps much faster.
“Chainlink oracles unlock a host of DeFi applications, bringing opportunity for new dApps that truly leverage the unique value propositions of a ZK rollup, including fast finality and robust security,” said Polygon Labs CEO Marc Boiron.
Polygon zkEVM utilizes zero-knowledge proofs (ZKPs) to bundle transactions off-chain for more efficient on-chain verification. ZKPs enable transaction batching via zk-rollups, whereby numerous transactions are processed off-chain and are then cryptographically verified together on-chain. This batch verification approach boosts throughput and reduces gas fees instead of submitting each transaction individually. By streamlining verification, Polygon zkEVM unlocks the scaling potential for Ethereum-based dApps.
According to Polygon Labs, Polygon zkEVM maintains compatibility with the EVM throughout its stack, providing ease of use and deployment for Ethereum-based applications. This also maintains vital security features that are essential for decentralized finance protocols.
“Security is a necessity for the long-term vision of any DeFi protocol,” said Johann Eid, Chief Business Officer at Chainlink Labs.
Notably, Polygon also recently announced that it is ending support for contributions to Polygon Edge, its legacy framework for building custom Ethereum-compatible blockchains. According to the company, it did so to focus on Polygon CDK, a similar solution developed by the firm to bolster its efforts at future-proofing the Polygon network.
At the time of writing, LINK is trading at $14.32, up by 0.3% in the past 24 hours, while POL and MATIC are changing hands at $0.78, down 6.5% in the past 24 hours.
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