Pricing

Smart contract audit pricing ranges from $5,000 for simple token contracts to $200,000+ for complex protocols, L1 chains, and ZK systems. The primary cost drivers are codebase size, protocol complexity, and the number of external integrations. Contact us for a custom quote based on your specific codebase.

Sentinel is our self-serve, fully automated analysis engine, priced by codebase size. Scans start at $100 for contracts under 500 lines, $250 up to 2,000 lines, $1,000 up to 10,000 lines, and $2,500 up to 50,000 lines. Codebases above 50,000 lines are scoped as a custom Enterprise engagement. Each scan returns severity-rated findings automatically. For senior, human-led review, choose a full audit.

Yes. We provide a free scoping assessment before every engagement. We review your codebase, estimate the audit timeline, and provide a fixed-price quote, no obligation.

Every engagement includes manual line-by-line review, automated analysis via Sentinel, severity-rated findings report, and a remediation re-audit at no extra cost. Depending on the tier, we also include fuzzing, economic attack modeling, and formal verification.

No. Remediation verification is included in every engagement. We re-audit all patches to confirm they correctly address the root cause.

We recommend reaching out 2–4 weeks before you want the audit to start. For complex engagements (L1, bridges, ZK), 4–6 weeks lead time helps ensure optimal scheduling.

Yes. We accept payment in ETH, USDC, USDT, and DAI in addition to fiat wire transfers.

Yes. We offer retainer agreements for teams that need ongoing audit coverage: re-audits, new feature reviews, and continuous security. Contact us to discuss.

We encourage discussion. Every finding includes detailed root cause analysis and evidence. If a finding is disputed, we work with your team to verify or reclassify it. Our goal is accuracy, not padding.

Tripwire is a custom monthly subscription scoped to the number of contracts monitored, the chains involved, the level of response automation, and the SLA you need. Pricing starts at $2,500/month and scales with scope; because coverage is tailored to each protocol, we quote every deployment individually rather than selling fixed tiers. Contact us for a tailored quote.

No, but it helps. If SigIntZero audited your protocol, Tripwire monitoring rules are seeded directly from audit findings, so you get coverage tuned to your specific risk profile from day one. Without a prior audit, we configure standard detection rules and tune them over the first billing cycle.

Yes. Teams that purchase an audit engagement and a Tripwire subscription together receive a discount on both. The audit findings feed directly into your monitoring configuration, giving you continuous coverage from pre-deployment through production.