Sigma Prime audits smart contracts, zero-knowledge systems, blockchain infrastructure, and off-chain code, and publishes security research.
OpenZeppelin vs HAPI ID
How do OpenZeppelin and HAPI ID compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | OpenZeppelin | HAPI ID |
|---|---|---|
| What it is | OpenZeppelin Contracts provides a library for secure smart contract development. | HAPI uses cross-chain smart contracts to add security functions to decentralized finance products. |
| Website | ||
| Type | Open-source project | Website |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Not recorded | Web |
| Open source | Yes | Not stated |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both OpenZeppelin and HAPI ID.
Immunefi connects crypto projects with security researchers through smart contract and crypto bug bounty programs.
Hats Finance runs a decentralized marketplace for smart contract bug bounties and audit competitions.
Sherlock offers Web3 security audits, contests, AI analysis, and bug bounties for smart contract projects.
Each Ethernaut level requires hacking a smart contract in the Ethereum Virtual Machine through a Web3 and Solidity wargame.
Hexens audits blockchain systems and offers continuous threat exposure monitoring, alongside research on smart contract platform vulnerabilities.







