Mesrai vs Snyk Code
An AI reviewer for every pull request vs a SAST scanner inside a security platform. What each finds, what each costs, and how they work together.
TL;DR — four takeaways
- · Mesrai wins
Review beyond security
Mesrai reviews every pull request for bugs, logic errors, performance problems and your team's rules as well as security. Snyk Code focuses on security vulnerabilities.
- · Snyk Code wins
Full security platform
Snyk pairs SAST with dependency (SCA), container and infrastructure-as-code scanning under one account. Mesrai doesn't scan dependencies or containers.
- · Mesrai wins
Logic and authorization flaws
Mesrai's agents reason about what the code should allow — missing ownership checks, unsafe retries — which pattern-based SAST rarely flags.
- · Mesrai wins
Better together
Run Snyk as the automated security gate in CI and Mesrai as the reviewer on every pull request — they catch different things.
Feature matrix
- Comments on pull requests
- Security vulnerabilities in your code (SAST)AI reviewSAST engine
- Bugs, logic and performance review
- Dependency scanning (SCA)
- Container and IaC scanning
- Team rules in plain English
- Check PR against Jira / Linear ticket
- Bring your own LLM key
- Free planindividuals (launch offer)100 SAST tests/mo
- Pricingflat per dev + your LLM billTeam from $25/mo; Enterprise credits
✓ full coverage△ partial / on roadmap✕ not available
Competitor pricing and features verified against each vendor's public pricing page and documentation, October 2026. Vendors change plans often — check their site for the latest.
Defect-detection audit
Internal audit on 24 pattern-seeded pull requests across three production codebases (TypeScript, Python, Go). Both reviewers ran on Anthropic claude-opus-4-7 with default prompt packs. Severity was labelled before the run; ✓/✕ reflects whether the reviewer flagged the seeded defect on the inline comment.
- Criticalauth bypass, RCE, secret exfiltration7 bugs in datasetMesrai6/7 · 86%Snyk Code6/7 · 86%
- Highconcurrency, ownership-check, tenant leakage9 bugs in datasetMesrai6/9 · 67%Snyk Code4/9 · 44%
- Mediuminjection edge-cases, log leakage, CSRF8 bugs in datasetMesrai6/8 · 75%Snyk Code4/8 · 50%
Per-codebase audit
The same 24 pull requests, broken out by codebase. Tab through to inspect each PR's seeded defect, severity, and the per-reviewer flag. Defects are real-world patterns ported into representative diffs — not a forensic audit of upstream history.
- Refactor row-level-security policy linterJWT claims parsed before RLS check — anon role leaks rowsCRITICAL
- Storage upload presign endpointBucket name interpolated without path-traversal guardCRITICAL
- Realtime channel auth handshakeSubscription reuses prior connection's claims after reauthHIGH
- Edge-function cold-start optimisationEnv-var cache shared across tenants — secret bleedHIGH
- Postgres connection-pool warmupPool size read from stale config after migrationHIGH
- Auth UI password-strength meterRegex catastrophic backtracking on long input — DoSMEDIUM
- Realtime broadcast payload-size guardLimit checked on stringified length — multibyte bypassMEDIUM
- Migrations CLI diff rendererANSI escapes injected via column name — terminal hijackMEDIUM
Feature deep-dives
- 01What each one reviews// mesrai
The whole change
Specialised agents — general, bugs, security, performance and Mesrai Rules — review every pull request, using an AST graph of the repository to see impact outside the diff.
// snyk codeSecurity vulnerabilities
Snyk Code is static application security testing: it scans code for vulnerable patterns such as injection and unsafe APIs, in the IDE, in CI and on pull requests.
verdict — Snyk Code is a security scanner; Mesrai is a reviewer. They overlap only on security.
- 02Security coverage// mesrai
Intent and authorization
Mesrai's security agent flags injection, exposed secrets, unsafe cookies and — importantly — authorization logic, such as an endpoint that never checks the caller owns the record.
// snyk codePatterns plus the wider platform
Snyk Code finds known vulnerable patterns, and Snyk's platform adds dependency, container and infrastructure-as-code scanning — areas Mesrai doesn't cover.
verdict — For dependencies and containers, use Snyk. For logic and authorization flaws in your own code, add Mesrai.
- 03Pricing// mesrai
Flat per developer
Mesrai Pro is ₹499 / $6 per developer per month with unlimited reviews, on your own LLM key. 14-day trial, no card.
// snyk codeFree, Team and Enterprise
Snyk's Free plan covers 5 projects and 100 SAST tests a month. Team starts at $25 a month with 100 projects and 1,000 SAST tests. Enterprise is custom, using credits that can be spent across Snyk's products.
verdict — Small projects can start Snyk for free. Mesrai's price doesn't change with how many tests or reviews you run.
- 04Using both// mesrai
The reviewer
Explains risk in context, enforces team rules and checks requirements on every pull request.
// snyk codeThe security gate
Scans code, dependencies, containers and infrastructure, with security reporting across projects.
verdict — Running Snyk as the gate and Mesrai as the reviewer covers more than either alone.
System recommendation
// primary recommendation
Add Mesrai when you need review of the whole change — bugs, logic, performance and team rules — not only security patterns.
- →Bugs, logic, performance and security on every pull request
- →Authorization and business-logic flaws SAST rarely flags
- →Team rules in plain English; ticket checks against Jira or Linear
- →Your own LLM key, flat per-developer price
- →Runs alongside Snyk — no need to switch
// alternative path
Keep Snyk for dependency, container and infrastructure scanning and as your SAST gate.
Snyk's platform covers open-source dependencies, containers and IaC, with a free plan for small projects. It isn't designed to review logic, performance or team conventions.
Snyk scans; Mesrai reviews. Most teams are best served by both.
Frequently asked
How much does Snyk Code cost compared with Mesrai?
+Snyk's Free plan includes 100 SAST tests a month across 5 projects; Team starts at $25 a month with 1,000 SAST tests; Enterprise is custom, using credits. Mesrai Pro is ₹499 / $6 per developer per month (billed in INR in India, USD elsewhere) with unlimited reviews, plus your own LLM provider's token cost.
Is Snyk Code a replacement for Mesrai?
+No. Snyk Code is a security scanner; Mesrai reviews pull requests for bugs, logic, performance and team rules as well as security. Many teams use both.
Does Mesrai scan dependencies like Snyk?
+No. Mesrai reviews your own code. Use Snyk Open Source, Dependabot or a similar tool for vulnerabilities in third-party packages.
Which finds more security issues?
+They find different ones. Snyk Code is strong on known vulnerable patterns and its platform covers dependencies and containers. Mesrai adds authorization and business-logic flaws that pattern-based scanning rarely catches.
Can I use my own LLM key with Snyk Code?
+No — Snyk runs its own analysis. Mesrai runs on your own key from OpenAI, Anthropic, Google, AWS Bedrock or any OpenAI-compatible provider.
Snyk Code vs Semgrep — where does Mesrai fit?
+Snyk Code and Semgrep are both SAST tools — pick one as your rule-based security gate. Mesrai sits alongside either as an AI reviewer for logic, authorization and team rules.
See Mesrai on your next PR.
Free for individual developers as a launch offer. Set up in about 2 minutes on your own LLM key. Mesrai posts inline on the PR surface your team already uses.