Offensive Security

API Security Testing

REST & GraphQL API Endpoint Security Testing

Find broken authorization, injection, and rate-limiting gaps in the APIs powering your applications.

APIs are the backbone of modern applications — and one of the most common places attackers find broken object-level authorization (BOLA), missing rate limits, and injection flaws that expose entire datasets. We test your REST and GraphQL APIs directly, independent of any frontend, covering authentication, authorization, and data exposure across every endpoint.

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Who Needs This

Any product with a public or partner-facing API — mobile backends, B2B integrations, and platforms exposing data or actions through programmatic access.

What's Included

Broken Object-Level Authorization (BOLA) and broken function-level authorization testing

Authentication and JWT/token handling analysis

Rate limiting and resource exhaustion testing

Injection testing across REST and GraphQL query surfaces

Mass assignment and excessive data exposure checks

Full endpoint inventory and CVSS-scored findings report

Frequently Asked Questions

Do you need API documentation or a Postman collection to test?

It helps but isn't required — we can enumerate endpoints through the client application if formal documentation isn't available, though providing a spec speeds up coverage.

What is BOLA and why does it matter?

Broken Object-Level Authorization happens when an API doesn't verify a user actually owns the resource they're requesting — letting one user access another's data by simply changing an ID. It's consistently one of the most common and highest-impact API vulnerabilities we find.

Can this be tested alongside a web or mobile VAPT engagement?

Yes — most clients bundle API security testing with the web or mobile VAPT engagement that consumes those APIs, since findings on one side often affect the other.