Real pricing. Real timelines. No sales calls required. If your project needs a $300k Trail of Bits engagement, this table will tell you. If AI auditing covers your needs at $0, it'll tell you that too.
Instant AI
Free – $100/mo
SmartContractAuditor.ai. Results in 60 seconds. Catches systematic bugs — reentrancy, access control, integer overflow. Right for pre-audit prep and any project that can't justify $15k+.
Boutique Manual
$5k – $50k
Hacken, Halborn, SlowMist, PeckShield, Hashlock, QuillAudits. Human researchers. 2–6 week timeline. Right for live protocols with real TVL, exchange listing requirements, or regulatory needs.
Institutional
$50k – $300k+
CertiK, Trail of Bits, Zellic, Spearbit, ConsenSys Diligence. Top-tier researchers. 4–16 weeks. Right for protocols with $10M+ TVL, complex cryptographic systems, or enterprise clients who require big-brand sign-off.
| Firm | Price Range | Turnaround | AI-Powered | Free Tier | Best For |
|---|---|---|---|---|---|
| SmartContractAuditor.aiYou are here | Free – $100/mo | < 60 seconds | All project sizes, pre-audit prep, rapid iteration | ||
| CertiK | $50,000 – $150,000 | 4 – 12 weeks | High-TVL DeFi, exchange listings requiring brand recognition | ||
| Trail of Bits | $100,000 – $300,000+ | 6 – 16 weeks | Complex cryptographic protocols, ZK systems, institutional-grade | ||
| Hacken | $10,000 – $50,000 | 2 – 6 weeks | Mid-market protocols, token launches, APAC-region projects | ||
| Halborn | $20,000 – $80,000 | 3 – 8 weeks | Protocols needing offensive pentesting alongside code review | ||
| Quantstamp | $25,000 – $100,000 | 3 – 8 weeks | Enterprise clients, institutional DeFi, regulated financial protocols | ||
| Cyfrin / Codehawks | $15,000 – $60,000 | 3 – 6 weeks | Protocols wanting competitive crowd-sourced audit model (Code4rena alternative) | ||
| OpenZeppelin | $25,000 – $80,000 | 3 – 8 weeks | Contracts using OpenZeppelin libraries, governance contracts, timelock systems | ||
| ConsenSys Diligence | $50,000 – $150,000 | 4 – 10 weeks | Ethereum ecosystem protocols, Layer 2 deployments, high brand-value listings | ||
| Zellic | Undisclosed (selective) | 6 – 16 weeks | ZK proof systems, cryptographic contracts, top-tier DeFi protocols ($50M+ TVL) | ||
| Spearbit | Undisclosed (selective) | 4 – 12 weeks | Protocols that want top independent researchers over a firm brand | ||
| SlowMist | $8,000 – $40,000 | 2 – 5 weeks | Asia-Pacific projects, CEX security, real-time threat intelligence | ||
| PeckShield | $8,000 – $40,000 | 2 – 5 weeks | Asia-Pacific projects, BNB Chain, projects wanting real-time exploit monitoring | ||
| Sigma Prime | $20,000 – $60,000 | 3 – 8 weeks | Ethereum consensus layer, staking infrastructure, Lighthouse clients | ||
| ChainSecurity | $30,000 – $80,000 | 4 – 10 weeks | Academic-grade formal verification, ETH Zurich-affiliated, conservative DeFi protocols | ||
| Hashlock | $5,000 – $25,000 | 2 – 4 weeks | Australia/APAC projects, ASIC-adjacent compliance, cost-conscious early-stage | ||
| Certora | Tool + services | Variable | Formal verification using Certora Prover; mathematical proofs for invariants | ||
| QuillAudits | $5,000 – $30,000 | 1 – 4 weeks | Early-stage projects, India/South Asia market, multi-chain deployments | ||
| ImmuneBytes | $5,000 – $20,000 | 1 – 3 weeks | India-based projects, affordable entry-level audits, EVM chains | ||
| Neodyme | $20,000 – $60,000 | 3 – 8 weeks | Solana programs, Rust-based contracts, Solana DeFi protocols | ||
| Ottersec | $15,000 – $50,000 | 2 – 6 weeks | Solana / Cosmos / multi-chain; competitive pricing for non-EVM | ||
| Sherlock | $20,000 – $60,000 | 3 – 6 weeks | Protocols wanting audit + bug bounty hybrid; senior researcher model | ||
| MythX (Shutdown Mar 2026) | Was $19 – $699/mo | Automated (now offline) | Former MythX users need a replacement — SCA.ai is the closest like-for-like substitute |
Prices sourced from public rate cards and community-verified quotes. Updated June 2025.
Run SmartContractAuditor.ai on your contract before getting quotes. If it finds nothing critical, you may not need a $50k engagement. If it does find something, you'll go into the manual audit with a cleaner codebase and a lower invoice.
Free vulnerability scan · Instant results · No sales call required