API Security

Modern applications live and die by their APIs. We test REST, GraphQL, and internal service-to-service APIs against the OWASP API Security Top 10, covering authorization, rate limiting, and data exposure risks.

What's included

  • OWASP API Security Top 10 coverage
  • Broken object and function-level authorization testing
  • Rate limiting and abuse-case validation
  • API gateway and schema hardening recommendations

Who this is for

  • API-first and microservices architectures
  • Platforms exposing partner or public APIs
  • Teams shipping frequent API changes

How the engagement works

  1. 1

    Review API documentation, schema, and authentication/authorization model

  2. 2

    Test against the OWASP API Security Top 10, including object and function-level authorization

  3. 3

    Abuse-case and rate-limiting validation

  4. 4

    Prioritized findings report mapped to specific endpoints and remediation guidance

Frequently asked questions

Do you test GraphQL as well as REST APIs?

Yes, both, including GraphQL-specific risks like introspection exposure and query complexity abuse that can be used for denial-of-service style attacks.

What's the most common API vulnerability you find?

Broken object level authorization, where one authenticated user can access another user's data simply by changing an ID in a request, is by a wide margin the most frequent and most damaging finding across API assessments.

Can you test APIs that are still in active development?

Yes. We can scope a re-testing cadence into your release cycle so new endpoints and changes get validated on an ongoing basis rather than once a year.

Ready to talk about api security?

Tell us about your environment and timeline, and we'll recommend a scope that fits.

API Security | Eiferone