API penetration testing

Where the real bugs live.

APIs are the front door to your data, and authorization and business-logic flaws are where attackers get in. We test REST, GraphQL, and gRPC the way an adversary would.

What we test

The API attack surface.

Auth & access (IDOR/BOLA)

Object-level and function-level authorization flaws.

Injection & input handling

SQL/NoSQL injection, SSRF, and unsafe parsing.

Business logic

Workflows abused in ways the design never intended.

Rate limiting & abuse

Endpoints that can be hammered or enumerated.

GraphQL

Introspection, nested queries, and resolver-level access bugs.

Data exposure

Over-permissive responses leaking more than they should.

FAQ

Common questions.

What do you test in an API pentest?

Authentication and authorization (including IDOR/BOLA), rate limiting and abuse, input handling and injection, business-logic flaws, and the data exposure that comes from over-permissive endpoints. REST, GraphQL, and gRPC are all in scope.

How is it priced?

API testing is delivered within the fixed-fee Audit Security Test (from $3,500) for scoped evidence, or as deeper work: Delivered within a Continuous engagement (from $2,000/wk) or scoped as a fixed engagement. Book a call. The right fit depends on how many endpoints and how much business logic you have. See the pricing page.

Do you test GraphQL and business logic?

Yes, GraphQL and business-logic abuse are where the interesting, high-impact bugs usually live, and they’re a core focus of our deeper engagements.

Test your API like an attacker.

Send your API docs or a target and we’ll scope the right depth of test.