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Free API & CORS Security Audit
Free API & CORS Security Scanner
Are Your Endpoints Exposing Sensitive Data?
API Security Audit: We scan for CORS misconfigurations, exposed Swagger/OpenAPI docs, authentication bypass, API key leaks, and GraphQL introspection vulnerabilities that others miss.
CORS reflection
Credentialed CORS
Exposed endpoints
Auth checks
Rate limiting
Security headers
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Results in ~30 seconds
Free basic scan
100+ security checks — SSL, ports, headers, CORS, file leaks, DMARC, supply-chain CDNs & CVE library detection
Enterprise-grade recon engine for agencies, SaaS teams, and security-focused founders.
Immediate risk snapshot
Actionable findings in one report
Upgrade only if you need full remediation
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Security Score
example.com
Scan complete
SSL Valid
Ports Checked
Files Scanned
Penetration Test Report
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DNS & Email Security
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SSL / TLS Status
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Security Headers
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Ports & WAF
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Files & Compliance
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Technology
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Vulnerability Analysis
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The Kill Chain
Attacker's view of exposureExposed Assets
File Leaks
Run a scan to detect file leaks.
Compliance
Vulnerability Table
Severity badges highlight riskSeverity
Issue
Description
Remediation
Attack Surface Map
Observed exposure pointsCompliance Mapping
OWASP + ISO alignmentEvidence Mode
HTTP signals capturedStatus: --
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Why Agencies Choose Us
Free Tools
- SSL & Headers
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- .env/.git Leaks
- WP Username Spy
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Expensive Consultants
- SSL & Headers
- Open Port Scan
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- WP Username Spy
- Executive PDF
- Cost$1,500+
Why API & CORS Security Matters
#1 Attack Vector in 2026
APIs power mobile apps, SPAs, and microservices — but OWASP ranks Broken Access Control and Security Misconfiguration as the top two web risks, both directly impacting API security.
CORS Misconfigurations
A single wildcard CORS policy with credentials lets any attacker's website make authenticated requests to your API on behalf of your users — stealing data silently.
Exposed Keys & Docs
Leaked API keys in JavaScript bundles grant direct cloud access. Exposed Swagger docs give attackers a complete blueprint of your entire API surface.
AI QA Monkey's API scanner performs the same reconnaissance that real attackers use — then gives you actionable fixes before the damage is done.
Sample Scan Results
Here's what a typical API security scan reveals — real findings from anonymized scans.
What We Scan
CORS Policy Analysis
Detect wildcard origins, credentials misconfigurations, overly permissive methods, and missing preflight handling that enable cross-origin attacks.
Swagger & OpenAPI Exposure
Find publicly accessible API documentation at /swagger.json, /openapi.yaml, /api/docs, and /graphql that reveals your entire API schema to attackers.
API Key Leak Detection
Scan page source and JavaScript bundles for exposed API keys from AWS, Google Cloud, Stripe, Firebase, Twilio, SendGrid, and 30+ other providers.
Authentication Analysis
Check for missing or weak authentication on API endpoints, exposed admin routes, and endpoints that accept requests without proper authorization headers.
GraphQL Security
Detect exposed GraphQL endpoints, introspection enabled in production, missing query depth limits, and batch query abuse vectors.
Rate Limiting Check
Verify that your API endpoints enforce rate limiting headers (X-RateLimit-Limit, Retry-After) to prevent brute-force and denial-of-service attacks.
SSL & Security Headers
Certificate validation, HSTS, CSP, X-Content-Type-Options, and critical header analysis for your API endpoints.
Open Port Scanning
Find exposed database ports, admin panels, and debug endpoints that shouldn't be publicly accessible alongside your API.
Attack Surface Mapping
Visual network graph of your full external attack surface — API endpoints, subdomains, open ports, exposed files, and SSL status in one interactive map.
OWASP API Top 10
Coverage mapped to OWASP API Security Top 10 — including Broken Object Level Authorization, Broken Authentication, and Excessive Data Exposure.
One-Click Copy Fix
Every vulnerability comes with a "Copy Fix" button and an "AI Fix Prompt" you can paste directly into ChatGPT, Cursor, or Claude for instant remediation code.
Export JSON / CSV
Download raw data for your IT team or paste into Cursor, ChatGPT, or any AI tool for instant fixes.
New Feature
Industry Security Index
See how the top companies in your industry rank for cybersecurity. Public leaderboards updated in real-time.
View Industry Rankings
Fintech • Healthcare • Legal • E-Commerce
Explore More Security Tools
Go beyond API security. AI QA Monkey offers specialized scanners for every layer of your web infrastructure.
WordPress Security Scanner
Scan WordPress sites for malware, plugin vulnerabilities, admin exposure, and xmlrpc.php brute-force risks.
Shopify Security Scanner
Check your Shopify store for exposed API keys, checkout vulnerabilities, and third-party app risks.
React App Security
Scan React and Node.js apps for XSS, exposed .env files, CORS misconfigurations, and source map leaks.
DNS/SPF/DMARC Checker
Validate your email authentication records and prevent domain spoofing and phishing attacks.
Open Port Scanner
Discover open ports and exposed network services that could be exploited by attackers.
Compliance Scanner
Map your security posture against PCI DSS, ISO 27001, OWASP Top 10, and GDPR requirements.
Related Security Guides
Master API security with our in-depth guides and step-by-step fix tutorials.
How to Fix CORS Misconfiguration
Copy-paste server configs for Apache, Nginx, and Node.js to fix CORS wildcard and credential issues.
API Security Best Practices 2026
Authentication, rate limiting, input validation, and API key management for REST and GraphQL.
Security Headers Guide
Configure CSP, HSTS, X-Frame-Options and more to protect your API endpoints.
OWASP Top 10 Explained
Every OWASP Top 10 vulnerability explained with real-world examples and fix commands.
SSL/TLS Certificate Fix Guide
Fix certificate issues, enforce HTTPS, and configure TLS for secure API communication.
API Rate Limiting Guide
Implement rate limiting, throttling, and abuse prevention for REST and GraphQL endpoints.
Common Questions
What is a CORS misconfiguration and why is it dangerous?
CORS (Cross-Origin Resource Sharing) controls which external domains can access your API. A misconfiguration — such as setting Access-Control-Allow-Origin to wildcard (*) with credentials — allows any website to make authenticated requests to your API, enabling data theft, session hijacking, and unauthorized actions on behalf of your users.
This is especially dangerous for APIs that handle sensitive data like user profiles, payment information, or admin operations. AI QA Monkey tests your CORS policy against real-world attack patterns used by penetration testers.
How does the scanner detect exposed API endpoints?
AI QA Monkey probes common API paths including /api/, /v1/, /v2/, /graphql, /swagger.json, /openapi.yaml, and /docs. It checks HTTP response codes, analyzes response headers for authentication requirements, and identifies publicly accessible endpoints that should be protected behind authentication or rate limiting.
Can it detect API keys leaked in JavaScript?
Yes. The scanner analyzes your page source, JavaScript bundles, and inline scripts for patterns matching API keys, tokens, and secrets from providers like AWS, Google Cloud, Stripe, Firebase, Twilio, and SendGrid. Exposed keys in client-side code are a critical vulnerability that attackers actively scan for using automated tools.
Does it test GraphQL endpoints?
Yes. We detect exposed GraphQL endpoints and check for introspection being enabled in production — which allows attackers to map your entire API schema, including mutations and subscriptions. We also check for query depth limiting and rate limiting on GraphQL endpoints, which are common attack vectors for denial-of-service.
Live demo — 2 minutes
Attackers scan your site every day. Watch what they find — and how one report shuts them out.
A real site, a real scan: 27 hidden issues exposed in 60 seconds — exposed credentials, open database ports, spoofable email — then fixed the same day with the copy-paste code inside the $29 report, verified with free re-scans until the score climbs from 67 to 90, and sealed with a Verified Secure badge your visitors can see. The same recon a consultant bills $1,500+ for.
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