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API Security Assessment

OWASP API Top 10 review — authentication, authorization, rate limiting, and data exposure across your REST and GraphQL surface.

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Free
First 2 assessments
<10 min
To complete
24h
Team review
What We Assess

8 Areas We Examine

01
Authentication Mechanism
JWT, OAuth 2.0, API keys, session cookies — lifetime, rotation, signing algorithms, and how credentials are transported.
02
Broken Object-Level Authorization (BOLA)
Can user A call an endpoint and fetch user B's data by changing an ID in the URL? The #1 API vulnerability of the last three years.
03
Function-Level Authorization
Admin-only endpoints reachable by regular users, privilege escalation via role confusion, and missing scope checks.
04
Rate Limiting & Throttling
Per-endpoint, per-user, per-IP limits. Is password-reset throttled? Can expensive queries be abused into a DoS?
05
Input Validation & Schema
OpenAPI/GraphQL schema enforcement, mass-assignment protection, SSRF surface, file-upload handling.
06
Excessive Data Exposure
APIs that return full user objects when the UI only needs a name. Client-side filtering is not a security control.
07
CORS Configuration
Wildcard Access-Control-Allow-Origin with credentials, over-permissive preflight responses, and reflected origin headers.
08
Logging, Monitoring & Deprecated Endpoints
Are auth failures logged? Are old v1 endpoints still live? Is there a debug or metrics endpoint exposed to the world?
Who This Assessment Is For

SaaS platforms, fintech and NBFC backends, mobile app APIs, B2B integrations, healthcare systems with ABDM endpoints, and any product where partners or customers call your API directly.

Common Findings We Uncover
BOLA — swap an ID and access someone else's data
No rate limiting on login or password reset
JWT without expiry or with `alg: none` accepted
CORS set to `*` with credentials allowed
Debug, Swagger, or `/actuator` endpoints exposed publicly
Compliance Frameworks Mapped
OWASP API Top 10 (2023)OWASP ASVS 4.0NIST SP 800-204PCI-DSS v4.0RBI IT Framework

Common Questions

What is BOLA and why does every API have it?
Broken Object-Level Authorization happens when an API checks that you're logged in but doesn't check that the record you're requesting actually belongs to you. It's the number-one API vulnerability in the OWASP Top 10 because developers tend to trust IDs in URLs. We test every object-fetching endpoint for it.
Do you actually call our API or just review documentation?
Both. The free AI assessment is an architecture review based on what you tell us. A full engagement with our team includes live API testing against a staging environment with valid credentials — the only way to catch most BOLA and authorization flaws.
How is this different from a regular website VAPT?
A website VAPT tests the rendered application — XSS, SQL injection, session handling. API security focuses on the endpoints themselves: authorization logic, schema enforcement, and business-logic abuse. Most modern apps need both.

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