The Best HAPI ID Alternatives in 2026

Hats Finance runs a decentralized marketplace for smart contract bug bounties and audit competitions.

Sigma Prime audits smart contracts, zero-knowledge systems, blockchain infrastructure, and off-chain code, and publishes security research.

Sentora provides non-custodial DeFi vaults, real-time analytics, and risk management for capital deployment across decentralized finance.

DeFiSafety reviews process quality in decentralized finance and publishes its review criteria, documentation, and research resources.

Immunefi connects crypto projects with security researchers through smart contract and crypto bug bounty programs.

Sherlock offers Web3 security audits, contests, AI analysis, and bug bounties for smart contract projects.

Steakhouse Financial builds on-chain stablecoin and yield products, including curated Morpho vaults and white-label platform offerings.

StarkWare develops STARK proof technology for blockchain scalability, security, and privacy, with products including Starknet and StarkEx.

Tulipa Capital curates DeFi risk strategies and provides dashboards and partner information for its on-chain finance work.

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.

InstaDapp develops DeFi tools, including the Fluid protocol and Avocado wallet for account and smart contract transactions.

EverRise develops bridging and security applications for DeFi protocols across BNB Chain, Ethereum, Polygon, Fantom, and Avalanche.

Ouroboros Capital presents Yuzu Money yield products, including tokenized real-world asset yield and curated DeFi strategies.

Roobee Finance describes a multichain, community-managed platform for discovering and optimizing yield.

AlphaPing operates non-custodial on-chain credit vaults with defined risk constraints, verifiable accounting, and liquidity rules.

Anvil runs a local Ethereum node for development and testing, with in-memory execution, funded accounts, instant mining, and chain forking.

MEV Capital provides on-chain liquidity and DeFi risk management, including curated vaults and segregated managed accounts.

Hakutora describes on-chain asset management and risk-control services, with a focus on identifying opportunities and managing risk.

KPK describes risk frameworks, automation, and on-chain transparency for tokenized funds, curated vaults, and treasury mandates.

Re7 Labs advises DeFi protocols and curates on-chain risk, using research and in-house tooling across digital asset ecosystems.

BlockSec Phalcon detects blockchain attacks and sends alerts to protocols, liquidity providers, traders, chains, and exchanges.

Three Sigma audits blockchain code and DeFi systems, reporting security findings and services for Web3 projects.

Trail of Bits publishes security reviews, research, open-source tools, and talks covering software, blockchains, and AI systems.