0x, a middleware protocol and infrastructure provider, has announced the release of its proprietary API for DEX liquidity aggregation on the Polygon network.The release marks 0x’ integration with Polygon alongside other DeFi “blue-chip” projects such as as Aave, Augur, Sushi, Curve, Paraswap, and 1inch, to scale its Ethereum-based DEX services and provide full on-chain liquidity access to the Polygon network through the 0x API.All major liquidity sources on Polygon’s Ethereum-compatible chain are now integrated with 0x’s benchmarking API, with on-chain data aggregated from QuickSwap, SushiSwap, Curve, Dodo, mStable, Dfyn, and Cometh. Other integration partners listed by 0x alongside Polygon include Matcha, DexGuru, DexKit, Dodo, MyCrypto.com, Set Protocol, Zapper and Zerion.The release and integration with Polygon was in response to community demand from 0x users, with the project’s developers asking its community through a poll. The 0x API is built on a reliable codebase and quickly unpacks all the DEX liquidity tools for developers to implement on their own product, providing a systematic and high-usability framework for developing projects for DeFi.0x pursues a vision of creating and mainstreaming tokenization to enable the free flow of value. The project currently serves crypto users with smart contracts, self-custody wallets, and DEX markets. As a middleware protocol, 0x facilitates communication between a blockchain consensus layer and the user-facing application layer, thus posing the need to balance both aspects before deciding on an integration with Polygon.According to 0x, Polygon has demonstrated significant growth over the past three months, with a steadily scaling ecosystem that has processed at least three and a half times more transactions than Ethereum itself. The Polygon network “represents an exciting opportunity to expand the reach of 0x protocol and that of our 0x API partners to a large and growing global user base” stated 0x in a blog.The 0x API has facilitated over 1.5 million trades from at least 300,000 unique traders since its launch, and has been responsible for over $27 billion in total trade volume across Ethereum and the Binance Smart Chain.Public documentation to guide developers and builders is now available through 0x’s docs page for the 0x API.Disclaimer: This article is provided for informational purposes only. It is not offered or intended to be used as legal, tax, investment, financial, or other advice