APIs power the fintech, forex and SaaS platforms that Cyprus is known for — and they expose your business logic straight to clients and partners. We map every endpoint and attack authorization, tokens and rate limits against the OWASP API Security Top 10.
Working from your OpenAPI spec or captured traffic, we surface the BOLA and mass-assignment flaws that lead to real data breaches, not just scanner noise.
What we test
- Broken object-level authorization (BOLA)
- Broken function-level authorization (BFLA)
- Mass assignment & excessive data exposure
- Authentication & JWT/token weaknesses
- Rate-limiting and resource-exhaustion bypass
- Injection and server-side request forgery
Common vulnerabilities we uncover
- Broken object-level authorization (BOLA)
- Broken function-level authorization (BFLA)
- Mass assignment and excessive data exposure
- JWT and token authentication weaknesses
- Rate-limiting and resource-exhaustion bypass
- Injection and server-side request forgery (SSRF)
How we run your API Penetration Testing
- Kick-off & scoping. A short call to agree goals, in-scope assets and rules of engagement, so your api penetration testing is safe, authorised and aimed at your real business risk.
- Mapping & discovery. Before touching anything we map the full attack surface in scope, so nothing exploitable slips through.
- Hands-on testing. Cyprus-based specialists exploit and chain weaknesses manually — the flaws scanners walk straight past — to show genuine impact.
- Reporting. Each issue is verified, CVSS-rated and documented with a step-by-step reproduction and a practical fix your team can apply.
- Free retest. Once you have remediated, we re-test at no extra cost to confirm the attack path is truly closed.
What you receive
- Full endpoint & authorization matrix
- Findings with curl-based reproductions
- Severity ratings and remediation steps
- Free retest after fixes
Your deliverables
When your api penetration testing wraps up, you receive a clear, audit-ready report plus a walkthrough call with your team. Inside you will find:
- A concise executive summary that management and the board can act on
- Every technical finding with a reproducible, copy-paste proof of concept
- CVSS v3.1 ratings and plain-language business impact for each issue
- Practical, prioritised remediation your developers can implement straight away
- A free retest and updated finding status once fixes are in place
- A signed attestation letter for clients, auditors, GDPR, NIS2 and ISO 27001
Standards & frameworks
OWASP API Security Top 10
OWASP WSTG
OWASP ASVS
PCI DSS / SOC 2
What you gain
By the end of your api penetration testing, you will know exactly which weaknesses a real attacker could exploit, what it would cost your business, and the precise order in which to fix them — backed by evidence, not a scanner’s guesswork. Cyprus firms use our findings to close critical gaps, satisfy client and regulator security questionnaires, and demonstrate due diligence for GDPR and NIS2. With a free retest included, you also get documented proof the issues are resolved.
Working with us
Every api penetration testing begins with a short, no-obligation scoping call to understand your goals, environment and constraints, followed by a fixed-price proposal. Most work is delivered remotely, and because we are based in Cyprus we work in your timezone with on-site visits across Limassol, Nicosia and island-wide where it helps. We keep you updated throughout and flag any critical finding immediately rather than waiting for the report. Everything is covered by a signed NDA and safe, non-disruptive testing that protects your production systems. You receive your report, a walkthrough and a complimentary retest once fixes land. Engagements are typically booked one to three weeks ahead, and urgent testing can often be arranged — just email hi@cypruspentest.com.
Why Cyprus businesses choose CyprusPentest
Your api penetration testing is run by senior offensive-security specialists who test the way genuine attackers do — manually, creatively and focused on proving real impact. What sets us apart:
- Based in Cyprus — local, in your timezone, with on-site coverage across Limassol and Nicosia.
- Manual, exploit-led testing that chains vulnerabilities the way an attacker would, well beyond automated scanners.
- Reproducible proof for every finding, with copy-paste steps your team can independently verify.
- Compliance-ready reporting that supports GDPR, NIS2, ISO 27001 and CySEC expectations.
- A free retest so you have documented evidence your fixes actually hold.
- Fixed-price and responsive, with a named point of contact from scoping through to retest.
Explore related services
API Penetration Testing pairs well with our other Cyprus penetration testing services for fuller coverage. You may also want:
Frequently asked questions
Can you test APIs for a CySEC-regulated firm?
Yes. We regularly test APIs for CySEC-regulated brokers and fintechs in Limassol, with strict NDAs and audit-ready reporting.
Do you need a UI to test our API?
No. We work directly from an OpenAPI/Swagger spec, Postman collection or live traffic.
Do you cover REST and GraphQL?
Yes — REST, GraphQL, gRPC and WebSocket APIs are all in scope.