What is a smart contract audit?

A smart contract audit is a thorough security review of blockchain code performed by expert auditors. At Zealynx, we combine manual line-by-line review with static analysis (Slither, Aderyn) and fuzz testing (Foundry) to identify vulnerabilities, logic flaws, and potential exploits before deployment.

How much does a smart contract audit cost?

Smart contract audit costs in 2026 range from $5,000-$15,000 for simple tokens/NFTs, $50,000-$100,000 for standard DeFi protocols (DEXs, lending), and $150,000-$500,000+ for high-complexity systems like bridges and ZK-rollups. Pricing depends on code complexity, not just line count. Zealynx offers competitive pricing starting at approximately $5,000 per week per auditor.

How long does a smart contract audit take?

Typical audit timelines are 1-2 weeks for simple contracts, 3-6 weeks for standard DeFi protocols, and 2-6 months for complex systems like bridges or L1 protocols. Zealynx offers private audits (1-4 weeks) and full protocol security engagements (3-6 weeks) that include penetration testing and smart contract audits.

What blockchains does Zealynx audit?

Zealynx audits smart contracts across all major blockchains including Ethereum, Solana, BNB Chain, Polygon, Arbitrum, Optimism, Avalanche, Base, Monad, Berachain, and StarkNet. We support Solidity, Rust, Cairo, Sway, and TypeScript codebases.

What is included in a Zealynx audit?

Every Zealynx audit includes manual line-by-line code review, static analysis, fuzz testing, a detailed security report with severity ratings and mitigation guidance, continuous communication throughout the engagement, and a post-engagement support period with free re-audit of fixes.

SMART CONTRACT AUDITS

FOR EVM & SOLANA

Boutique security firm trusted by 30+ protocols — direct access to senior auditors, not a ticket queue.

Ethereum blockchain network visualization showing smart contract security infrastructure

Trusted by 30+ protocols · 31 audits completed · No waitlist

TypeScript Audits & Pentesting

Smart Contract Audits

Smart Contract Development

TRUSTED BY

LEADING PROTOCOLS

FAIR LABS
NOVASWAP
WEDEFIN
AMPLE
MICROCHAINS
MATCHAIN
IPAL NETWORK
GOLDEN GRID
BADGERDAO
MONADEX
INVERTER
PAYMATIC
GLIF
RIBBON
AURORA
SIDE.XYZ
MANGROVE
PARAGON
YADACOIN

AND WEB3 SECURITY FIRMS

* Carlos (Bloqarl), founder of Zealynx, has acted as an auditor contractor for Pashov Audit Group, Cyfrin and Sherlock

Testimonials

What our clients say about us

“We are very pleased with the collaboration with Zealynx. Their approach was very professional, always open to discussion, and helped us discover potential pain points in our smart contracts, providing...”

Golden Grid

CTO - Bojan

“Working with Zealynx was a great experience from start to finish. They were fast, committed, and provided clear, ongoing communication throughout the audit process. The feedback loop was smooth, the c...”

Ample Protocol

Co-founder - Rog Servin

“Shout out to @TheBlockChainer who put in valuable work helping out on a Cyfrin private audit. This audit had a lot of tricky external integrations and @TheBlockChainer was a test writing machine helpi...”

Cyfrin

Dacian Private Audits Lead

“The Zealynx team engaged with us to conduct a private audit on our protocol for a duration of 3 weeks. Within this time, they were able to uncover more than a dozen findings and provide good design re...”

Monadex

Founder

“We're pleased to announce the successful completion of our security audit. Kudos to the team at @ZealynxSecurity for their professionalism, prompt responses, and willingness to discuss our technical i...”

Wedefin

Founder

“Working with the Zealynx team has truly built on top of our security services with their expertise in fuzz testing, formal verification and development. Their work showcases meticulous attention to de...”

Shieldify

Founder

“When GLIF was developing the second version of our Protocol, we wanted to get up to speed on security best practices in addition to the ones we were using. Zealynx introduced us to several tools that...”

Glif

Founder

“We engaged Zealynx to enhance the security of our protocol, and their team exceeded our expectations. Their professionalism, enthusiasm, and deep technical expertise were evident throughout the collab...”

Paymatic

Anatolii Petrovskyi

“Working with Zealynx Security was a game-changer for our project. Their meticulous attention to detail and deep understanding of smart contracts ensured our code was secure and flawless. We felt confi...”

Ribbon Protocol

Founder - Gugu Nyathi

“We hired Zealynx to develop contracts for Inverter's NAV-based PIM workflow (total of 5 contracts). In my experience, Carlos and Sergio are among the most friendly developers I've had the pleasure to...”

Inverter Network

Marvin Gross

“We worked with Carlos over the course of six months on Solana smart contract development and integration, and the collaboration couldn't have gone better. They quickly became an essential part of the...”

Paragon

Pascal, COO

“Working with Zealynx was fantastic. They identified vulnerabilities I hadn't considered and delivered results on a tight timeline. Their communication throughout the process was excellent. Fast, thoro...”

Fair Labs

Founder

“We were genuinely impressed with the depth and quality of Zealynx's audit. Their team quickly understood our architecture and clearly distinguished between the core security model and implementation-l...”

Yadacoin

Founder

Open SourceAI Security Auditor

Meet Krait — AI-Assisted Security Verification

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Run in Your IDE

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Real Exploit Context

Every prompt includes real findings from Solodit — actual exploits where protocols lost funds. Your LLM knows exactly what to look for because it has seen what went wrong before.

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Claude Code, Cursor, Windsurf, Codex — any IDE with AI chat. The prompts are engineered to work across LLMs. Zero vendor lock-in, zero API costs.

Shareable Reports

Generate PDF reports or share a persistent link with your team, investors, or auditors. Every verified check includes file references and confidence scores.

Silent. Precise. Lethal to Vulnerabilities.

Decorative background pattern for services section

Technical Security Services

End-to-end security engineering: from architectural review to adversarial testing and remediation.