Sigma Prime audits smart contracts, zero-knowledge systems, blockchain infrastructure, and off-chain code, and publishes security research.
HAPI ID vs Three Sigma
How do HAPI ID and Three Sigma compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | HAPI ID | Three Sigma |
|---|---|---|
| What it is | HAPI uses cross-chain smart contracts to add security functions to decentralized finance products. | Three Sigma audits blockchain code and DeFi systems, reporting security findings and services for Web3 projects. |
| Website | ||
| Type | Website | Website |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Web | Web |
| Open source | Not stated | Not stated |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both HAPI ID and Three Sigma.
Sherlock offers Web3 security audits, contests, AI analysis, and bug bounties for smart contract projects.
Hexens audits blockchain systems and offers continuous threat exposure monitoring, alongside research on smart contract platform vulnerabilities.
Sentora provides non-custodial DeFi vaults, real-time analytics, and risk management for capital deployment across decentralized finance.
StarkWare develops STARK proof technology for blockchain scalability, security, and privacy, with products including Starknet and StarkEx.
Each Ethernaut level requires hacking a smart contract in the Ethereum Virtual Machine through a Web3 and Solidity wargame.







