Offensive Security · API Pentest
APIs eat the attack surface.
OWASP API Security Top 10 aligned REST, GraphQL and gRPC penetration testing.
Modern applications are mostly APIs. Solvin's API penetration tests follow the OWASP API Security Top 10 (2023) — with deep coverage of broken object-level authorisation (BOLA), broken function-level authorisation, mass assignment and rate-limit / resource abuse across REST, GraphQL and gRPC endpoints.
/ Capabilities
What's in scope.
OWASP API Top 10 (2023)
Systematic coverage of BOLA, broken auth, BOPLA, unrestricted resource consumption, BFLA and SSRF.
Authenticated multi-tenant testing
Testing across roles, tenants and object owners to surface authorisation bypass and IDOR patterns.
GraphQL & gRPC
Introspection abuse, deep query cost, batching attacks and reflection-driven gRPC enumeration.
Spec-driven fuzzing
OpenAPI / GraphQL schema-driven fuzz testing to surface edge-case handling errors.
BOLA is the modern IDOR.
Broken object-level authorisation dominates real-world API breaches. We enumerate object IDs across tenants and roles methodically, because scanners rarely catch it.
GraphQL is not automatically safer.
GraphQL introduces introspection, batching and query-cost issues that don't exist in REST. We test them explicitly.
/ Standards & Tooling
/ References & standards
Every claim on this page is sourced.
These are the public, authoritative sources this page draws from. If a statement isn't backed by one of the standards, tools or policies below, it isn't on the page.
- [1]OWASP API Security Top 10 (2023)— OWASP Foundation
- [2]OWASP Web Security Testing Guide (WSTG) v4.2— OWASP Foundation
- [3]Schemathesis — spec-driven API testing— Schemathesis maintainers
/ Editorial accuracy checklist
What we confirmed before publishing.
A short list of internal checks every offensive-security page must pass before it goes live. If you spot a gap, email info@solvin.co.in and we'll correct it.
- Every standard, framework and tool named on this page has a citation in the References section below.
- No customer names, logos, case studies or metrics are used unless explicitly authorised in writing.
- No vendor product claims are made beyond what the vendor publishes in official documentation.
- Statistics and percentages are attributed to their source or omitted; illustrative figures are labelled as such.
- Cloud-provider testing policy statements reflect the provider's published rules of engagement at time of writing.
- Content is reviewed annually and after any material change to a referenced standard.
Common questions.
Can API testing be automated?
Automation helps with coverage of technical vulnerabilities but rarely catches authorisation logic (BOLA / BFLA / BOPLA), which is where most breaches happen. Manual testing dominates a good API engagement.
Do you need our OpenAPI spec?
Ideal but not required. A published spec accelerates coverage; without one we reverse-engineer endpoints from traffic and clients, at a small time cost.
Ready to scope a api penetration testing engagement?
A senior practitioner — not a sales rep — will respond within one business day.
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