Rust smart contract audits for Solana, CosmWasm and Stylus
Rust auditors matched to your runtime, not just your language.
- in RFP budgets posted
- $1.2M
- saved, 44.5% vs single direct quotes
- $525K
- vetted firms quoting on the platform
- 70+
- first quotes typically land within the hour
- <1 hour
Rust audits by runtime
52firms on Procur3 audit Rust.
OShield
Slot Zero Security
No.Witness Labs
Sigma Prime
CredShields
Shred Security
VulSight
Egis Security
CD Security
Adevar Labs
HackenProof
Burra Security
AuditWare
Guvenkaya
Monethic- +37 more
How it works
Get Rust audit quotes- 01
Post
Share your runtime, framework and scope once.
- 02
Compare
Firms that audit your runtime quote with price, timeline and team.
- 03
Select
Award the audit and track delivery in one place.
When a Rust program needs an audit
The same triggers as any contract audit, with a few that are specific to Rust runtimes.
- Your program holds or moves user fundsAccount-validation bugs are cheap to find and expensive to miss.
- You've written native Solana Rust without AnchorEvery check Anchor would generate is now yours to write.
- You call other programs or contractsCPIs and submessages pass trust across a boundary.
- The program is upgradeableWhoever holds the upgrade authority can replace the code.
How to choose a Rust audit firm
- Have the reviewers audited your runtime?
A Solana auditor and a CosmWasm auditor look for different bugs. Ask for published reports on your runtime, not just in Rust.
- Does the scope include the code that builds transactions?
Clients, keepers and relayers decide what the program is asked to do. If they're out of scope, say so in writing.
- Is fuzzing or property testing included?
Rust has good fuzzing tools. Ask whether the quote includes them, and for which instructions or messages.
Procur3 helped us find specialized Rust auditors for our smart contracts on Solana. The experience statistics really supports with decision making and cut our review time by weeks.
Security isn't an afterthought for TermMax. Thanks @procur3 for helping us run a clean RFP to find specialized Daml auditors ahead of our Canton Network launch.
Frequently asked questions
What is a Rust smart contract audit?
A security review of on-chain programs written in Rust, such as Solana programs, CosmWasm contracts and Arbitrum Stylus contracts. Reviewers read the code line by line against the runtime's execution model, test it, and report vulnerabilities by severity, then review your fixes.
Does Rust's memory safety make smart contracts safe?
No. Memory safety removes one class of bug, but most serious on-chain findings are logic errors: missing account checks, wrong authorisation, broken accounting. Rust also wraps integer overflow silently in release builds unless overflow checks are enabled, which reviewers check for.
How is a Solana audit different from a Solidity audit?
Solana programs are stateless and receive every account as an input, so the main risk is trusting an account the caller supplied. In a Solidity audit, reentrancy and storage issues lead, because Solidity contracts hold their own state. The bug classes, tooling and reviewer experience differ, so match the firm to the runtime.
Do I need an audit if I use Anchor?
Yes. Anchor generates many account checks, which removes common mistakes, but only for the constraints you declare. Missing constraints, business logic, arithmetic and cross-program calls still need review.
Which Solana audit firms are on Procur3?
Firms with published Solana audits are compared in the Best Solana smart contract audit firms 2026 guide. When you post a request, firms that audit Solana programs are matched to it.
Is it free to request Rust audit quotes?
Yes. Posting a request and comparing quotes is free. You agree the price and terms with the firm you choose.
Get Rust audit quotes from firms that know your runtime.
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