Integrate new capabilities, not new risks.
Fully secure the APIs that connect your applications, platforms, and services.
An API penetration test is a structured and comprehensive assessment that simulates attacks on an API implementation, covering areas such as authentication, authorisation, input handling, access control and business logic to find weaknesses that could lead to data breaches, fraud, service disruption, or regulatory issues.
SECFORCE testers replicate the latest API attack techniques to verify that access controls are applied correctly and assess whether APIs can be exploited through excessive requests, manipulated by malicious inputs, or bypassed to perform unauthorised actions.
In 2025, 41% of organisations experienced a surge in attacks on APIs. SECFORCE’s API penetration testing service provides real insight into how API security issues put your core systems and business operations at risk.
Assess the security risks of APIs by simulating a full range of attack scenarios, including complex, multi-step workflows and chained requests.
Know exactly where you stand with regulations like PSD2 and Open Banking, and get defensible evidence for boards and auditors.
Prevent APIs from allowing unauthorised access or data exposure through third-party integrations.
Identify and remediate weaknesses, such as hardcoded API keys and tokens, that could expose customer, financial, or business-critical data.
Validate that core protections like authentication, authorisation, input validation, and rate limiting are correctly implemented at the API layer.
Any organisation that exposes its functionality internally or to other parties over a consumable API will benefit from API penetration testing as part of its ongoing risk management program.
API penetration testing is highly recommended when mobile or web applications introduce new endpoints or when existing APIs are updated. Testing is also vital following business logic changes or when APIs handle sensitive customer, financial, or personal data.
Ensuring that APIs cannot allow unauthorised access or data exposure through third-party integrations.
Reducing risk from undocumented or legacy APIs, which are often forgotten or poorly maintained.
Testing web and mobile applications when an API forms the shared endpoint that both depend on.
Gaining assurance that APIs handling user and payment data are secure.
Proving compliance with regulations and standards, including PSD2 and Open Banking.
Testing during application development to prove the underlying interface is securely implemented before client-side surfaces are built on top of it.
Validating post-breach remediation to ensure that an API did not contribute to a known breach and can be safely used.
SECFORCE API pen testing is a highly manual, expert-led testing service designed to replicate how real attackers target APIs and give you a clear understanding of your API security posture.
Our testing is aligned with industry best practice standards such as the OWASP API Security Top 10 and is carefully managed to avoid disruption to production services and sensitive data.
At the end of the test, we share prioritised, actionable recommendations communicated in business terms to leadership and provide vulnerability remediation guidance and advice on how to implement effective, business-aligned protections to technical teams.
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