21X, the first European Union-regulated exchange for on-chain tokenized securities, has integrated Chainlink to provide verifiable market data for its listed assets on the public Polygon blockchain, a move aimed at enhancing transparency for institutional participants. The Frankfurt-based bank will use the oracle tool to make trading data available in real time on the public Polygon blockchain. This is done to make things more clear for institutional participants.
The integration went live following a September 15, 2025 announcement, just a week after 21X officially opened its regulated trading venue on September 8. It will publish crucial data points, including best bid and ask prices, their corresponding quantities, and the last traded prices for 21X’s tokenized securities.
This process is powered by the Chainlink Runtime Environment (CRE), which automatically retrieves data from on-chain contracts, aggregates it, and publishes it in a standardized format for DeFi applications to consume.
This new development builds on a strategic relationship that was first announced on December 2, 2024, mixing both digital and traditional infrastructure Max Heinzle, CEO of 21X, said that the integration gives big clients the openness and auditability they need.
“The Chainlink standard enables 21X to securely and reliably bring real-time, verifiable market data for tokenized securities onchain,” Heinzle stated. “By integrating Chainlink into our regulated DLT trading venue, we’re delivering the transparency, auditability, and collateral utility that institutions require to move onchain.”
The partnership could open up new, more complex ways to use controlled digital assets. These tokenized securities can be used as collateral in decentralized finance (DeFi) loan protocols and built into automated portfolio management strategies because they make data that can be checked easy to find.
CEO of Chainlink Labs and President of Banking & Capital Markets, Fernando Vazquez said the combination was a “key moment for the blockchain economy.” He added that making EU-regulated securities more usable across DeFi “opens the floodgates of institutional capital to flow onchain.”
This integration is a big step toward connecting the onchain economy to regular capital markets. By putting clear, dependable, and checkable data about regulated financial instruments on a public blockchain, 21X and Chainlink are creating important infrastructure that could speed up the acceptance of DeFi by institutions. This movement shows, by many use cases, that blockchain technology combined with traditional ways of doing finance are now trending and can show a path to the next steps.
