Learn, build, and thrive on Ethereum

Start Building on Ethereum

  • Learn quickly by building real apps
  • Speedrun the most important concepts
  • Level up your skills and get paid

Already have Solidity skills?

Test your knowledge by building real-world, complex apps.

Dex Challenge
Challenge #4

Build a DEX

๐Ÿ’ต Build an exchange that swaps ETH to tokens and tokens to ETH.

Fork the Repo
Dex Challenge
Challenge #5

State Channels

๐ŸŒ The Ethereum blockchain has great decentralization & security properties. These properties come at a price!

Fork the Repo
Dex Challenge
Challenge #6

Multisig Wallet

๐Ÿ‘ฉโ€๐Ÿ‘ฉโ€๐Ÿ‘งโ€๐Ÿ‘ง Using a smart contract as a wallet we can secure assets by requiring multiple accounts to 'vote' on transactions.

Fork the Repo

The stack for prototyping to production

  • A modern, clean version of scaffold-eth with
    RainbowKit, Wagmi, NextJS and TypeScript
  • Open source tooling built and maintained by BuidlGuidl
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Scaffold-ETH 2

Scaffold-ETH 2 screen
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Builds Uploaded

high-impact devs

Open Developer Streams are a unique way to fund development and give developers at the edges the freedom to build what they think is most important.

Their smart contracts get replenished monthly and allows them to withdraw funds whenever they like by submitting a few sentences about the work or a PR.

This approach produces novel open source solutions and a vibrant learning environment.


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developers list

Partnering with
ecosystem heroes

Focused Cohort Streams bundle together a group of developer streams and focuses them on a pre-determined objective.

These cohorts provided the structure and guidance of an Operator who identifies, adds, and removes developers from the pool.


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Co-fund with us
Cohorts 16
Hackers 106
ETH Streamed 207.70 ฮž
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A curated group of Ethereum builders creating products, prototypes, and tutorials to enrich the web3 ecosystem.