API Security Testing

API Penetration Testing Services

We test REST, GraphQL, and backend APIs for exploitable vulnerabilities in authentication, authorization, tokens, object access, schemas, rate limits, and sensitive data flows.

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API Attack Surface

Test the data paths your products depend on

API vulnerabilities often hide in authorization, object access, token handling, schemas, and business logic. Our testing validates real exploitability across endpoints and gives backend teams clear remediation steps.

Authentication and Token Testing

Test OAuth, OIDC, JWTs, API keys, token expiry, refresh flows, session binding, and account recovery paths.

Authorization and Object Access

Validate BOLA, BFLA, IDOR, role boundaries, tenant isolation, object-level permissions, and privilege escalation paths.

Input, Schema, and Data Validation

Assess injection, mass assignment, schema bypass, type confusion, upload handling, GraphQL abuse, and sensitive data exposure.

Rate Limits and Business Logic

Test throttling, replay, workflow abuse, state changes, payment or approval flows, enumeration, and automation resistance.

REST and GraphQL Coverage

Testing for REST APIs, GraphQL APIs, backend services, partner integrations, webhooks, and mobile API backends.

OWASP API Security

Validate BOLA, broken authentication, excessive data exposure, mass assignment, injection, SSRF, and unsafe consumption.

Endpoint-Level Reporting

Reports include proof, affected endpoints, payloads where appropriate, roles, impact, fix guidance, and retesting support.

Testing Process

From endpoint mapping to verified fixes

Define scope, API environments, authentication methods, test accounts, roles, documentation, rate limits, and rules of engagement.

Map endpoints, schemas, objects, roles, data flows, authentication paths, integrations, and high-risk business workflows.

Test OWASP API risks, authorization flaws, token handling, input validation, rate limits, data exposure, and logic abuse.

Prioritize validated findings with evidence, affected endpoints, payloads where appropriate, impact, and remediation guidance.

Retest fixes and document residual risk so backend and security teams can close API vulnerabilities confidently.

Need to test your APIs before release?

We can scope a focused API test around your REST services, GraphQL layer, mobile backend, partner integrations, or highest-risk data workflows.

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