API Security Assessment
Endpoint enumeration and authorization testing that finds the BOLA/BFLA and abuse flaws scanners can't reach.
APIs are where modern breaches happen — and where automated tools are weakest.
We test your endpoints by hand for the authorization and abuse flaws scanners routinely miss, across both REST and GraphQL. The focus is the logic that governs who can access what, and whether your API holds up under abuse.
What's included
Endpoint enumeration — map the full API surface, including undocumented and shadow endpoints.
Authorization testing — BOLA and BFLA testing for object- and function-level access-control flaws.
Input validation — injection, type confusion, and malformed-input handling across endpoints.
Rate-limit & abuse testing — confirm your API resists automated abuse and resource exhaustion.
How the engagement runs
Every engagement follows the same four-stage path — scope, test, report, verify. Scope and price are fixed in writing before any testing begins, and a re-test of the findings is included.
The flaws that actually break APIs
Aligned to the OWASP API Security Top 10 — with the emphasis on the authorization bugs scanners can't find.
Broken object-level authorization
Accessing other users' objects by changing an id — the #1 API risk.
Broken function-level authorization
Reaching admin or privileged actions you shouldn't be able to call.
Broken authentication
Weak tokens, flawed session handling, and login bypasses.
Injection & input handling
SQL, NoSQL, and command injection through poorly validated input.
Mass assignment
Setting fields you shouldn't by smuggling them into the request body.
Rate-limit & resource abuse
Enumeration, brute force, and exhaustion where limits are missing.
What you get
Executive summary
A plain-language overview of risk and business impact for leadership and whoever signs off on remediation.
Technical findings
Each authorization and abuse flaw ranked by real risk, with reproduction steps and remediation guidance.
Remediation support
We stay available while you fix — to answer questions and clarify findings, not just hand over a PDF.
Free re-test
Once you've remediated, we re-test the specific findings to confirm they're actually closed.
Close the gaps in your API.
Fixed scope, fixed price, and a report you can act on — with a free re-test once you've remediated.