Short answer: OpenZeppelin does not publish a current audit rate card. Its security-audit page asks teams to request an engagement, so exact prices circulating in comparison articles are estimates unless backed by a dated proposal for a comparable scope.
For market planning—not as an OpenZeppelin quote—Sherlock's February 2026 market reference puts smart-contract audits broadly between $5,000 and $250,000+, with many DeFi audits between $25,000 and $100,000. The defensible way to budget OpenZeppelin is to request a scoped proposal and compare deliverables, staffing, timing, and fix review.
OpenZeppelin's official process includes pre-audit preparation, architecture and code review, collaboration with the client team, a fix-review stage, and ongoing support after the engagement. Its site says each line is inspected by at least two security researchers and that advanced testing such as fuzzing and invariant testing is used when appropriate.
That is more specific than a generic “one-time PDF” description, but it still does not establish a public fixed price or promise the same techniques for every scope. Buyers should rely on the signed proposal for staffing and methods.
OpenZeppelin provides a human-led security engagement with a collaborative review and fix process. Firepan provides fast repository scanning, authenticated continuous workflows, and hypothesis-driven deep audits. Firepan's free endpoint accepts a public GitHub repository without an account; deeper workflows require authentication or payment.
Firepan can complement a scoped review by checking connected repository changes after a report's commit. It is not a substitute for the named researchers, certification needs, or codebase-specific commitments in a professional audit proposal.
Q: What is the exact price of an OpenZeppelin audit?
A: OpenZeppelin does not publish a current rate card. Request a quote for your exact scope and avoid treating third-party estimates as an offer from OpenZeppelin.
Q: Does OpenZeppelin include fix review?
A: Its official process describes a fix-review stage. Confirm the number of included rounds, dates, and out-of-scope rules in your proposal.
Q: Does OpenZeppelin use fuzzing on every audit?
A: Its public page says researchers use advanced techniques, including fuzzing and invariant testing, when necessary. That is not the same as a promise that an identical toolchain runs on every engagement.
Q: Is Firepan a replacement for an OpenZeppelin audit?
A: No. Firepan provides repeatable automated and AI-assisted analysis; OpenZeppelin offers a human-led scoped engagement. High-value systems often need multiple independent assurance layers.
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