What makes Zealynx different?

• Founder-Led Expertise: Every audit is personally managed by Carlos, a Spanish blockchain security specialist with over a decade of experience. You get senior-level attention and direct communication—no middlemen.
• Transparent, Competitive Pricing: Zealynx is known for clear, competitive rates, making top-tier smart contract auditing accessible to teams of all sizes.
• Recognized and Trusted: With a proven record and industry recognition, Zealynx is a trusted partner for DeFi projects seeking great value and reliable results.

Our core services

• Solidity Smart Contract Audits: Comprehensive, hands-on security reviews for EVM and DeFi protocols.
• Rust Smart Contract Audits: Security reviews for Rust-based chains and protocols.
• Cairo Smart Contract Audits: Deep-dive audits for Starknet and Cairo-based projects.
• Sway Smart Contract Audits: AMMs and DeFi projects on Fuel Network.
• Solana Smart Contract Audits: Specialized audits for Solana-based protocols.
• TypeScript Audits: End-to-end codebase reviews for dApp frontends and backends.
• Penetration Testing: Web3 and Web2 pentesting for apps, APIs, and infrastructure.
• Web3 Wallet Security: Security checks for wallet integrations and key management.
• AI Red Team Audits: Security assessments for AI/ML models and AI-powered applications.
• Solidity Development: Secure, production-ready smart contract development.
• Solana Development: Custom Solana smart contract builds.

Our clients

Partnerships & industry recognition

• Immunefi Audit Program (official partner)
• Cyfrin
• Pashov Audit Group
• Sherlock
• Shieldify
• Codespect

Why clients trust Zealynx

“Carlos is a test writing machine—he’s helped on complex audits with tricky integrations and always delivers.” — Cyfrin

“Thorough, detail-oriented, and always proactive in communication. Zealynx helped us identify and resolve critical issues before they became problems.” — Ribbon Protocol

“Fast turnaround, clear reports, and actionable feedback. We felt supported and informed throughout the entire process.” — Wedefin

“A pleasure to work with—Zealynx combines deep technical knowledge with a practical mindset, helping us ship secure code with confidence.” — Shieldify

Results & ROI: What DeFi teams gain from a Zealynx audit

• Fewer security incidents: Teams audited by Zealynx avoid costly exploits and downtime, protecting user funds and community trust.
• Faster exchange listings & integrations: Our clear, thorough audit reports help projects get listed on major DEXs/CEXs and integrated with partners more quickly.
• Investor & user confidence: A Zealynx audit signals credibility, making it easier to attract investors and users—even if you’re not a household name (yet).
• Actionable improvements: We don’t just point out problems—we help you fix them, so your code is production-ready and future-proof.
• Long-term support: Need a quick re-audit after changes? We’re here to help, keeping your project secure as you grow.

Notable achievements

• Uniswap Hook Incubator Hackathon Winner: 1st place, with a grant from Mangrove for MVP development.
• Uniswap v4 Documentation: Carlos is the official author of Uniswap v4 hook guides.
• Immunefi Partner: Go-to auditor for Immunefi’s audit program.
• Featured Expert: Highlighted in Cyfrin’s success stories and top placements in public security competitions.

Community leadership

Our audit process

• Direct access: Work with the founder from start to finish—no junior handoff.
• Transparent process: Open communication, clear reporting, and tailored quotes.
• Continuous support: From initial assessment to post-audit guidance, Zealynx is your partner in long-term security.

Ready for a trusted, well-priced smart contract audit?