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Free API Security Scan — No Registration Required

API Security Scanner —
Find Vulnerabilities Before Attackers Do

Automated scanning for OWASP API Top 10 vulnerabilities. Detect BOLA, SQL Injection, XSS, and 50+ security flaws in minutes. No setup required.

What is API Security Scanning?

API security scanning is the automated process of analyzing Application Programming Interfaces (APIs) to identify security vulnerabilities, misconfigurations, and weaknesses that could be exploited by attackers. Unlike traditional web application scanning, API security scanning focuses specifically on the unique threat landscape of APIs — including authorization flaws, excessive data exposure, and broken authentication mechanisms.

Modern applications rely heavily on APIs to connect services, exchange data, and enable third-party integrations. APIs now account for over 80% of all web traffic, making them the primary attack surface for modern web applications. Despite this, many organizations treat API security as an afterthought — applying the same web vulnerability scanners designed for HTML pages to their APIs, which misses critical API-specific vulnerabilities like BOLA.

A dedicated API security scanner understands API protocols (REST, GraphQL, SOAP, gRPC), can parse API specification files (OpenAPI/Swagger), and tests for API-specific attack vectors that traditional web scanners miss.

SEC Scanner combines the power of the Nuclei scanning engine — the most popular open-source security tool on GitHub — with specialized API testing capabilities to deliver comprehensive API security assessments in minutes rather than days.

How Our API Security Scanner Works

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1

Enter Your API URL

Provide the base URL of your API. Optionally upload an OpenAPI/Swagger spec file for comprehensive endpoint coverage. No installation, no agents, no configuration.

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2

Automated Scan

SEC Scanner probes every endpoint with 50+ security test templates covering OWASP API Top 10, known CVEs, and common misconfigurations. The scan completes in 1–15 minutes.

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3

Get Your Report

Receive a detailed PDF report with severity ratings, proof-of-concept evidence, and AI-powered remediation guidance. Fix vulnerabilities before attackers find them.

Types of Vulnerabilities We Detect

Our API security scanner tests for all 10 categories of the OWASP API Security Top 10 (2023 edition), plus additional vulnerability classes.

API1Critical

Broken Object-Level Authorization (BOLA)

BOLA is the #1 API security risk. It occurs when an API endpoint exposes object identifiers without verifying that the requesting user has permission to access that specific object. SEC Scanner tests every endpoint for authorization bypass.

API2Critical

Broken Authentication

Broken authentication vulnerabilities allow attackers to compromise authentication mechanisms — guessing passwords, bypassing OTP, hijacking sessions. SEC Scanner checks for weak authentication flows and insecure token handling.

API3High

Broken Object Property Level Authorization

This vulnerability combines excessive data exposure and mass assignment. SEC Scanner detects both read and write authorization issues at the property level.

API4High

Unrestricted Resource Consumption

APIs without rate limiting or payload size restrictions can be abused to exhaust server resources. SEC Scanner tests for missing rate limits and resource constraints.

API5Critical

Broken Function-Level Authorization

When administrative functions are not properly protected, regular users can access admin-only endpoints. SEC Scanner tests for privilege escalation.

API6Medium

Unrestricted Access to Sensitive Business Flows

Some API endpoints expose business-critical operations without adequate protection against automation. SEC Scanner identifies endpoints lacking anti-automation protections.

API7High

Server-Side Request Forgery (SSRF)

SSRF vulnerabilities allow attackers to make the server send requests to arbitrary URLs. SEC Scanner injects URLs pointing to internal network addresses and cloud metadata endpoints.

API8Medium

Security Misconfiguration

Misconfigured APIs may expose verbose error messages, debug endpoints, or default credentials. SEC Scanner checks for common misconfigurations including CORS policies and security headers.

API9Medium

Improper Inventory Management

Many organizations run outdated API versions or undocumented endpoints. SEC Scanner helps discover exposed API versions and administrative interfaces.

API10Medium

Unsafe Consumption of APIs

Your API's security depends on the security of third-party APIs it consumes. SEC Scanner tests for missing input validation on data from integrated services.

API Security Scanner vs Manual Testing

FeatureAutomated ScannerManual Pentest
Speed1–15 minutes per scanDays to weeks
Cost$0–$50/month$5,000–$50,000+
FrequencyEvery deployment / dailyQuarterly / annual
Consistency100% consistentVaries by tester
Coverage50+ vulnerability typesDepends on scope
CI/CD IntegrationBuilt-inManual process
Report GenerationInstant PDF/JSONDays to compile

Benefits of Automated API Scanning

Continuous Protection

Run scans automatically after every deployment or on a daily schedule. Catch vulnerabilities before they reach production.

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Cost-Effective Security

Automated scanning costs a fraction of manual penetration testing. Detect the same OWASP vulnerabilities at 1/100th the cost.

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Actionable Reports

Every scan produces a detailed PDF report with severity ratings, proof-of-concept evidence, and AI-powered remediation recommendations.

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CI/CD Integration

Connect SEC Scanner to your pipeline with a single API key. Fail builds when critical vulnerabilities are found.

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Compliance Ready

Our reports map findings to OWASP API Top 10, PCI DSS, SOC 2, and ISO 27001 requirements.

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Security Trend Tracking

Track your security posture over time with historical scan comparisons.

Frequently Asked Questions

What is an API security scanner?
An API security scanner is an automated tool that analyzes APIs to detect security vulnerabilities such as SQL injection, cross-site scripting (XSS), broken object-level authorization (BOLA), and other threats listed in the OWASP API Top 10. It works by sending crafted requests to API endpoints and analyzing responses for signs of weakness, misconfiguration, or exploitable flaws.
How does SEC Scanner test API security?
SEC Scanner uses the Nuclei scanning engine — the #1 security tool on GitHub with 18,000+ stars. It sends a comprehensive suite of security tests to your API endpoints, checking for OWASP API Top 10 vulnerabilities, known CVEs, misconfigured headers, authentication flaws, and authorization bypasses. The entire process takes 1–15 minutes and requires no installation or setup.
Is API security scanning safe for production APIs?
Yes. SEC Scanner performs non-destructive testing — it does not exploit vulnerabilities or modify data. All scans are read-only and analyze responses without making changes. Reports are encrypted with AES-256 and automatically deleted after 30 days.
What types of APIs can SEC Scanner test?
SEC Scanner can test REST APIs, GraphQL endpoints, SOAP web services, and gRPC services. It supports APIs behind authentication (Bearer tokens, API keys, OAuth2), and can parse OpenAPI/Swagger specification files to ensure comprehensive endpoint coverage.
How is automated API scanning different from manual penetration testing?
Automated API scanning is faster, cheaper, and more consistent than manual pentesting. A scanner can test hundreds of endpoints in minutes, run on a schedule, and catch known vulnerability patterns instantly. Manual pentesting is valuable for complex business logic flaws and chaining exploits. The best security strategy combines both approaches.
Can I integrate SEC Scanner into my CI/CD pipeline?
Yes. On Professional and Business plans, you get a unique API key that allows you to trigger scans programmatically. You can integrate SEC Scanner into GitHub Actions, GitLab CI, Jenkins, or any CI/CD pipeline.

Start Your Free API Security Scan

Don't wait for a breach to find your API vulnerabilities. Scan your API now for OWASP Top 10 security flaws — free, no registration required.

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