Security, on every commit and at every depth.

    FYEO combines proprietary AI scanning with expert human auditors. Continuous scans on every PR, deep human-led audits before launch — one philosophy, two ways to engage.

    Start free with the ScannerTalk to our audit team

    Read more about our security scanner.

    Trusted by the world's top Web3 projects and protocols

    AxelarEthereumAlgorandCosmosNEAR ProtocolSolanaPolkadotFlareSuiAptosCardanoAxelarEthereumAlgorandCosmosNEAR ProtocolSolanaPolkadotFlareSuiAptosCardano

    Continuous coverage, expert depth

    AI scanning catches what changes every day. Human audits go deep before it counts. Together they cover what either misses alone.

    Continuous AI scanning on every commit

    The FYEO Scanner watches every pull request, diff, and dependency change so regressions are caught the moment they land.

    Trained on real audits, not generic models

    Our AI learns from 300+ FYEO manual audits, so it understands protocol context, business logic, and the patterns that actually ship to mainnet.

    Human experts for what matters most

    Senior auditors verify exploitability, reproduce real attack paths, and pressure-test business logic before launches, listings, or major releases.

    One continuum, not either/or

    Start with continuous scanning, escalate to a deep human audit when stakes are high. Findings, context, and history carry across.

    Built to work together

    The Scanner runs day-to-day so nothing slips through. Our auditors step in for the moments that decide whether a launch survives contact with the market.

    Two paths, one philosophy

    How deep do you need to go?

    Continuous scanning catches what changes every day. A human-led audit goes to the bottom of what matters most. Most teams use both.

    Continuous scanning

    FYEO Scanner

    Always-on AI scanning for every pull request, every diff, every dependency. The on-ramp — start in minutes, self-serve.

    • Continuous PR scanning
    • Full + diff scans
    • Dependency scanning
    • 7-day free trial
    Start freeLearn more about the Scanner

    Expert audit

    Human-led security audit

    Deep, manual review by senior auditors before launch, listing, or major release. The depth engagement teams graduate into.

    • Manual review of business logic
    • Severity-ranked findings + reproduction
    • Remediation guidance
    • Re-audit verification included
    Talk to our teamExplore the audit practice

    FYEO Scanner

    Catch issues at the speed of your commits

    A self-serve AI scanner purpose-built for Web3 code. Hook it up to your repo and ship with confidence between audits.

    Continuous PR scanning

    Every pull request, diff, and dependency change reviewed automatically.

    Trained on real audits

    Our models learn from 300+ FYEO manual audits — not generic open-source data.

    Your code is never stored

    Scans run in-memory. Nothing is retained, nothing is used to train our models.

    Self-serve in minutes

    Connect a repo, start a 7-day free trial, get findings before your next standup.

    Start free

    7-day free trial · no credit card required

    Use the FYEO Security Scanner with your AI →

    Trusted across Web3 — from first commit to mainnet

    Protocols, exchanges, and Web3 builders rely on FYEO for both continuous AI scanning across their repos and deep human-led audits before major releases.

    300+
    Protocols Secured
    85%
    Fewer False Positives
    40%
    Faster Audit Delivery

    Chains & Ecosystems We Audit

    SolanaEthereumBitcoinNearAlgorandCardanoAptosSuiRippleFlareNatGoldTheoriqSpreeAI-Integrated dApps
    Get Your Protocol Audited

    Scanner + audit together vs. either alone

    How continuous AI scanning paired with expert audits compares to running just one or the other.

    FeatureScanner + AuditScanner onlyAudit only
    AI-guided code diff analysis
    Human expert validation
    Business logic vulnerability detection
    Third-party library risk scanning
    Protocol-specific context awareness
    Low false positive rate
    Faster time to findings
    Actionable remediation guidance
    Post-fix verification
    Start free with the ScannerTalk to our audit team

    Frequently asked questions

    The Scanner, audits, and how teams use them together.

    The Scanner is continuous, automated security scanning that runs on every pull request and dependency change — self-serve, always on, and built to catch issues as your code evolves. A FYEO audit is a deep, human-led security review by senior auditors before a high-stakes moment like a launch, listing, or major release. Most teams use both: the Scanner for ongoing coverage, an audit when the stakes are highest.

    Sign in with GitHub at scanner.fyeo.io, choose the repositories you want to scan, and start your first scan. New accounts include 50 free credits, no card required. You'll see the exact credit price before every scan.

    The Scanner uses a GitHub App with per-repository access — it can only see the repositories you choose to install it on, with read access for scanning. Your source code is cloned to temporary storage only for the duration of a scan and is never stored afterward. We never use your source code to train our models, and scanning runs on FYEO-operated infrastructure.

    Start with 50 free credits, no card required. Choose a monthly plan or buy one-time top-up credits with no subscription. The exact price is shown before each scan and failed scans are automatically refunded. See fyeo.io/pricing for current plans.

    The Scanner performs best on Rust and Solidity smart contracts, where its models are most thoroughly trained. Support for Move is expanding as our audit dataset for it grows; Move scans may rely more on manual prompting and can take longer. We're actively improving coverage as our audit history expands.

    An audit begins with AI-guided analysis of your code and dependencies to focus expert attention, followed by deep manual review by senior security engineers. You receive a severity-ranked report with reproduction steps, remediation guidance, and a post-fix verification review. Timing depends on codebase size and complexity — talk to our team for a scoping estimate.

    Our models are trained on findings from 300+ real FYEO security audits, not generic public data — so the Scanner understands the kinds of vulnerabilities that actually matter in Web3 code, with meaningfully fewer false positives than untrained tools. The AI surfaces and prioritizes real risks; for the deepest business-logic and protocol-specific judgment, our human auditors take it the rest of the way.

    Yes — and most teams do. The Scanner gives you continuous coverage between audits, and audit engagements go deep when it counts. Clients on a retainer get discounted rates, shorter lead times, and access to FYEO's full suite of tools, including the Scanner, as part of the engagement.