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Ethereum Foundation Announces x402 Hackathon Winners: x402-sf, Cheddr Payment Channels x402, and Others Receive Awards

By: theblockbeats.news|2026/01/19 13:30:13
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BlockBeats News, January 19th, the Ethereum Foundation announced the conclusion of the x402 Hackathon supported by the Developer Acceleration Team and revealed some of the winning projects, including:

x402-sf (developed by Superfluid): Introducing native end-to-end subscription payments infrastructure to the Internet;

Cheddr Payment Channels x402: Leveraging x402's payment channels for efficient circular and streaming micropayments;

x402r (developed by BackTrackCo): Providing a refund request tool for cases where x402 payments were made for data services but not delivered.

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