Prbl
FreemiumAI-generated code vulnerability scanner that finds gaps where AI code meets yours.
By Tanmay Verma, Founder · Last verified 06 Jul 2026
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Added 7d ago
77/100Safe BetIn short
Prbl — AI-generated code vulnerability scanner that finds gaps where AI code meets yours. Best for Development teams using Cursor, Copilot, or other AI code generators, Vibe coders building production apps with AI tools, SaaS startups preparing for SOC 2 audits. Free to start; paid plans from $29/mo.
Is Prbl actually worth it?
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Editorial Verdict
Best for
Development teams using Cursor, Copilot, or other AI code generatorsVibe coders building production apps with AI toolsSaaS startups preparing for SOC 2 auditsSecurity-conscious teams deploying AI-generated codeTeams shipping apps built with Lovable or Bolt
Not ideal for
Organizations without any AI-generated code (use traditional SAST)Teams needing broad dependency CVE scanning (use Snyk or Dependabot)Enterprises requiring API-first or IDE plugin integration (not yet available)Teams looking for a full CI/CD security suite (Prbl is a specialist layer)
Prbl fills a real gap: it checks what AI tools get wrong, not just known CVEs. The free scan is instantly useful, and the focus on the 'seam' between AI and human code catches bugs generic scanners miss. It's early-stage — no API, limited integrations — but the approach is sound and the team iterates fast (11 scanner fixes in one week). Consider it alongside Snyk or Semgrep for broader coverage.
Skip Prbl if Skip Prbl if you don't use AI code generation tools like Cursor, Copilot, Bolt, or Lovable, or if you need a fully integrated CI/CD security scanner with API and CLI support.
Compare with: Prbl vs Snyk DeepCode AI, Prbl vs Draftbit, Prbl vs AppGyver
Last verified: July 2026
Viability Score
77/100
Safe BetHow likely is Prbl to still be operational in 12 months? Based on 4 signals — momentum (how recently it shipped), wrapper dependency, revenue model, and web presence.
momentum
55
funding runway
80
website health
90
wrapper dependency
100
Last calculated: July 2026
How we score →Key Features
- AI-generated line detection (Cursor, Copilot, Bolt, Lovable)
- Scans AI-human code seams for vulnerabilities
- Missing access control detection on AI-scaffolded routes
- Fallback secret detection in environment variable lookups
- Timing-unsafe webhook signature comparison detection
- Hardcoded credential detection
- SQL injection detection via string concatenation
- Baseline capture and fix validation
- Automated fix with rewriter credits
- Clean diff before merge
- A+ Mozilla Observatory rating
- CodeQL static analysis integration
- pip-audit for Python packages
- Open-source auditable scanner rules
- Free scan without account creation (60 seconds)
About Prbl
FreemiumIntermediateNo APIWeb
Prbl is a specialized security scanner built for the era of AI-assisted development. It detects which lines of code were generated by tools like Cursor, Copilot, Bolt, or Lovable, and then runs targeted checks exactly where AI-written code meets human-written code — the seams where missing auth, fallback secrets, and injection bugs tend to hide. Unlike generic SAST tools that scan all code the same way, Prbl knows that AI models systematically produce patterns like hardcoded credentials, SQL injection via string concatenation, missing authentication on CRUD routes, and timing-unsafe webhook comparisons. The scanner has an A+ Mozilla Observatory rating and passes 10/10 security tests. It integrates with CodeQL for static analysis every push, audited 134 pip packages, and uses fully auditable open-source rules. A free scan without account creation takes just 60 seconds: paste a repo URL and get file-level findings immediately. Pro, Team, and Enterprise plans add scan history, audit logs, unlimited repos, and SSO for teams shipping production AI code.
Behind the Verdict
Prbl addresses a specific, growing problem: AI-generated code tends to introduce systematic vulnerabilities that traditional SAST tools don't catch. The scanner's ability to detect which lines were written by an AI and then check for fallback secrets, missing auth, and timing-unsafe comparisons is genuinely novel. The free tier is generous — 5 scans per day, 3 repos, with file-level findings — and you don't even need an account to try it. The baseline capture and fix validation workflow is smart: it locks in function behavior before applying automatic fixes, preventing regressions. However, Prbl is not a replacement for a full CI/CD security suite. It currently only scans via URL paste, with no CLI or API, so it can't run in your pipeline. It also limits integrations to a few partners (mostly via scanning). The rewriter credits (50/month on Pro) may feel restrictive for teams with many findings. For now, it's best as a complementary scan for AI-heavy projects, not your sole security tool.
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Real-world workflow fit
Concrete scenarios for the personas Prbl actually fits — and what changes day-one when you adopt it.
Solo developer using Cursor
You've built a side project with Cursor and want to check for security gaps before deploying.
Outcome: Paste your repo URL into Prbl, get file-level findings in 60 seconds, and fix critical issues like hardcoded secrets.
Startup engineering team with 5 members using Copilot
Your team uses Copilot to scaffold CRUD endpoints; you need to catch missing auth checks before they ship.
Outcome: Subscribe to Team tier, run scans on all repos, and use the shared dashboard to track regressions.
Security engineer preparing for SOC 2
You need to audit AI-generated code in your codebase for common security gaps as part of compliance.
Outcome: Scan repos with Prbl, document findings, and generate audit trails with Enterprise tier SSO and audit logs.
Use Cases
- Scan any GitHub repo for AI-generated vulnerabilities in under 60 seconds for free.
- Identify missing authentication on AI-scaffolded CRUD routes before production deployment.
- Detect fallback secrets (e.g., JWT_SECRET || 'default_secret') in environment variable lookups.
- Prepare for SOC 2 audits by auditing AI-generated code for common security gaps.
- Validate that automated fixes preserve baseline behavior before merging.
Models Under the Hood
AI-generated code detection (Cursor, Copilot, Bolt, Lovable)
as of 2026-07-06
Limitations
- Prbl currently only scans repositories via URL paste, with no CLI or API for CI/CD integration.
- The fix and baseline features are likely gated behind a plan (though not explicitly shown on the free tier).
- It targets AI-specific vulnerabilities only, so teams still need a general-purpose SAST tool for dependency CVEs and other issues.
as of 2026-07-06
12-month cost
Project the real annual outlay, including the implied monthly cost when only an annual tier is published.
Annual total
Free
Over 12 months
Effective monthly
Free
Billed monthly
Vendor list price only. Add-on usage, seat overages, and contract minimums are surfaced under Hidden costs & gotchas.
Plans compared
For each published Prbl tier: who it actually fits, and what it adds vs. the previous tier. Cross-reference the cost calculator above for projected annual outlay.
Free
$0/mo
Ideal for
Solo developer or hobbyist with up to 3 repos and occasional scans (5/day).
What this tier adds
Starting tier, free forever, no credit card needed — includes 5 scans/day, 3 repos, open-source scanner rules.
Pro
$29/mo
Ideal for
Individual professional developer with multiple repos needing more scans and fix capabilities.
What this tier adds
Adds 200 scans/day, 50 rewriter credits/month, unlimited repos, and scan history with audit log over Free.
Team
$99/mo
Ideal for
Small team of up to 10 members collaborating on AI-generated code security.
What this tier adds
Scales to 1,000 scans/day, 200 rewriter credits/month, shared dashboard, and priority support over Pro.
Enterprise
$500/mo starting
Ideal for
Large organizations requiring unlimited users, SSO, and dedicated support for compliance-heavy environments.
What this tier adds
Adds unlimited team members, SSO & audit logs, dedicated support, and 1,000+ rewriter credits/month over Team.
Where the pricing makes sense
The company stage and team size where Prbl's pricing actually pencils out — and where peers do it cheaper.
Prbl's pricing fits small-to-medium teams adopting AI code assistants. The free tier is generous for hobbyists. At $29/mo for Pro it's cheaper than many SAST tools, but for heavy usage the Team ($99/mo) or Enterprise ($500/mo) tiers are needed. Compared to Snyk or Semgrep, Prbl is cheaper but narrower.
Setup time & first value
How long it actually takes to get something useful out of Prbl — broken out by persona, not the marketing-page minute.
For solo devs: paste a repo URL and get results in 60 seconds, no account needed. For teams: sign up for a trial (2 minutes), connect repos via URL paste, and start scanning immediately. Full setup to first findings: under 5 minutes.
Switching to or from Prbl
How to bring data in from common predecessors and how to get it back out — written for the switcher, not the buyer.
Migrating in
- →From Snyk: run Prbl scans alongside your existing Snyk scans — they cover different vulnerability types.
Migrating out
- ↗To Semgrep: Prbl doesn't export findings directly; you'd need to manually transfer rules to Semgrep's AI-detection rulesets.
Resources & Guides
Frequently Asked Questions
Tools that pair well with Prbl
Common stack mates teams adopt alongside Prbl, with the specific reason each pairing earns its keep.
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