API Penetration Testing Services
Packages & Pricing.

API penetration testing services for REST, GraphQL and gRPC

API penetration testing services probe your endpoints for the flaws that expose customer data: broken object-level authorization, mass assignment, weak rate limiting and leaky responses. Omeiro tests authentication and input handling on your REST, GraphQL or gRPC APIs and writes up what we found.

Premium adds business-logic tests and a retest.

API penetration testing services: what testers need and what they find

Authorization is the hardest part to test automatically. API penetration testing services spend most effort on whether user A can reach user B's data by changing an identifier, which scanners rarely catch. Before ordering, prepare an API specification, test accounts for each role and at least two accounts in the same role, so cross-user access can be checked. Note endpoints that handle payments, personal data or admin actions, which deserve extra time.

Business logic is a separate category. A request can be technically valid and still abuse a workflow, for example applying a discount repeatedly or skipping a payment step, so API penetration testing services on higher tiers include those tests. Staging environments are safer than production for write operations. Share rate limit policies, authentication method and API gateway details, and agree how test data is cleaned up afterwards. Findings are most useful when they include reproduction steps your developers can run.