构建者工具

Web3j is the Java and Android integration library for Ethereum. Created in 2016, and still going strong in 2025 it is core plumbing to Ethereum for one of the world's most widely used development platforms, the JVM. It has been downloaded millions of times, and is used by everyone including Enterprises such as J.P. Morgan, Fnality and NTT Data Web3 infrastructure companies such as Alchemy The Besu Ethereum Execution client It's even been integrated natively into the Android OS by Freedom Factory in ethOS which powers the upcoming Ethereum phone the DGEN1 We decided in 2024 to bring Web3j into the Hyperledger Foundation, which provides high-quality governance of open source (similar to the Apache Foundation). It's still, the same team at Web3 Labs responsible for maintaining and supporting the library for its wide and varied user base. The Hyperledger association is great for visibility, but doesn't provide any funding for the project! We rely on grant funding to sustain this library and hopeful to qualify for this RPGF round. Unfortunately, we missed out on OP RPGF 3 as we had not realised projects were eligible for multiple rounds so did not apply following our success in OP RPGF 2. 🙏🏻

Passport is the premier web3 native offering that enables ecosystems to protect, understand and organically grow what matters most – their communities. We see Passport at the confluence of a best in class identity solution, backed by the most relevant and comprehensive data analysis toolset that also offers communities the ability to ascribe reputation.

miniapp starters is a set of open-source starter templates designed to make it easier to build Farcaster miniapps, with support for Worldcoin integrations as well. Miniapp Starters came out of our own journey building miniapps. Along the way, we found ourselves creating common patterns and components repeatedly, so we decided to turn that work into a set of reusable, community-friendly templates. Now, anyone can kickstart their own miniapp projects without reinventing the wheel.