Aztec
Private smart contracts and shielded execution on Ethereum.
Open Source
Free
5 APIs
Chainalysis
Blockchain analytics and compliance screening tools.
Freemium
Gitcoin Passport
Identity scoring for sybil resistance and fair airdrops.
Open Source
Free
Freemium
Immunefi
Bug bounty and audit platform for Web3 protocols.
Bug Bounty: Bug Bounty, Hackathons
What can you build?
- Bug bounty platform
- DeFi protocol launch
Free
Freemium
OpenZeppelin
Audited smart contract libraries and security tooling.
Open Source
Free
Freemium