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API Security Audit / VAPT

Manual penetration testing of REST, GraphQL and SOAP APIs. We test authentication, authorization, business logic, rate limiting and OWASP API Top 10 risks, delivered by OSCP-certified consultants with developer-actionable reporting.

Automated + manual testing 1-2 week delivery (by size) Starts from INR 20K Instant response, no delay Free retest included

At a Glance

  • Engagement type: Manual + automated API penetration testing (REST, GraphQL, SOAP)
  • Coverage: OWASP API Top 10, business logic, BOLA, broken authentication, rate limiting
  • Typical duration: 1-2 weeks total, based on endpoint count and complexity
  • Starts from INR 20,000: fixed price scoped after a free 30-minute call
  • Response time: instant, no delay. We start same day or next business day after scoping

What is It?

An API security audit is a focused penetration test of your REST, GraphQL and SOAP API surface. We exercise every endpoint with authenticated and unauthenticated tests, looking for broken object-level authorization (BOLA), broken authentication, excessive data exposure, rate-limiting failures and business logic flaws.

Codesecure's API VAPT is delivered by OSCP-certified consultants under signed NDA. Every engagement is mapped to OWASP API Top 10, with developer-actionable reporting including PoC evidence and CVSS scores. Output suitable for ISO 27001, SOC 2, PCI DSS and DPDP Act evidence.

Why It Matters

APIs are the new attack surface. The 2025 OWASP API Security report attributes 60%+ of recent breaches to API compromise. Internal microservices, third-party integrations, partner APIs and open banking endpoints all multiply your attack surface, and traditional web pentest scopes routinely miss API issues.

Indian fintech, healthcare, e-commerce and SaaS now ship API-first products. RBI's account aggregator framework, UPI integrations, BBPS APIs all create API security obligations. Enterprise customers increasingly demand API-specific pentest evidence in vendor questionnaires.

What We Test

Comprehensive coverage of the most exploitable risk categories for this service:

Broken Object Level Authorization (BOLA)Per-endpoint IDOR testing, horizontal and vertical privilege escalation
Broken AuthenticationJWT flaws, OAuth misuse, token replay, session fixation, MFA bypass
Broken Object Property Level AuthorizationMass assignment, property-level access control bypass
Unrestricted Resource ConsumptionRate limiting bypass, DoS vectors, expensive query abuse
Broken Function Level AuthorizationAdmin endpoint exposure, role boundary violations
Unrestricted Access to Sensitive Business FlowsWorkflow abuse, race conditions, payment logic bypass
Server-Side Request Forgery (SSRF)Internal service access, cloud metadata exposure, blind SSRF
Security MisconfigurationCORS, debug headers, verbose errors, default credentials
Improper Inventory ManagementShadow APIs, deprecated versions, undocumented endpoints
Unsafe Consumption of APIsThird-party API trust issues, supply chain risks

Get a Free 30-Minute Scoping Call

Tell us about your environment and we'll send a fixed-price proposal within 48 hours under a signed NDA. No obligation. Instant response, no delay.

Book Free Scoping Call

Our Methodology

Every engagement follows a 5-phase methodology aligned with PTES, NIST SP 800-115 and OWASP testing guides:

1

Scoping & Reconnaissance

Free scoping call, signed NDA, fixed-price proposal in 24-48 hours. Asset discovery, OSINT, attack surface mapping.

2

Threat Modeling

Targeted threat models against OWASP, MITRE ATT&CK, your specific business logic and applicable compliance frameworks.

3

Automated & Manual Testing

Automated discovery via Burp Suite Pro, Postman collections and OpenAPI specs, then deep manual testing by OSCP-certified consultants. BOLA, business logic and chained vulnerability testing that scanners cannot replicate.

4

Reporting & Walkthrough

Executive summary plus technical report mapped to OWASP, CVSS v3.1 and your compliance frameworks. Live walkthrough with your engineering team.

5

Retest & Sign-Off

Free retest of all critical and high findings within 30 days. Formal sign-off letter and certificate. Customer data deleted 90 days after sign-off.

What You Get

Every engagement ships with the same audit-ready evidence pack:

Executive SummaryBoard-ready PDF with business impact, risk posture and prioritised actions
Technical ReportDeveloper-actionable findings with PoC evidence, CVSS scores and code-level fixes
Engagement CertificateSigned certificate suitable for customer and regulator evidence
Free RetestValidation of all critical/high fixes within 30 days at no additional cost
Compliance MappingFindings mapped to ISO 27001, SOC 2, PCI DSS, HIPAA, DPDP Act controls
Engineering WalkthroughLive session with your team to clarify findings and fix approach

Engagement Timeline

Most engagements complete in 1-2 weeks based on environment size. Instant response, no delay, we start the same day or next business day after scoping.

Day 1-2

Scoping & Kickoff

Free 30-minute call, NDA, fixed-price proposal, environment access and threat modeling. We start immediately after sign-off.

Day 3-10

Active Testing

Automated scanning plus deep manual testing by certified consultants. Daily status updates. Critical findings flagged immediately.

Day 10-14

Reporting & Walkthrough

Executive and technical reports delivered. Live walkthrough with engineering. Free retest scheduled within 30 days.

Transparent Pricing

Fixed-price engagements based on environment size and complexity. No hidden costs, no per-finding surprises.

Starts from INR 20K
Final price scoped to your environment Varies by size, complexity and scope. Fixed price confirmed after a free 30-minute scoping call. Instant response, no delay.
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Talk to a Certified Consultant

30-minute call with our service lead. Get a sense of fit, scoping and timeline, no sales pressure.

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Frequently Asked Questions

Why is API Security testing different from web app testing?

APIs lack the visual context web apps provide. BOLA, mass assignment and business logic flaws often hide in API endpoints invisible to UI-driven testing. Traditional web pentest scopes routinely miss the API attack surface where 60%+ of modern breaches occur.

Do you test REST, GraphQL and SOAP?

Yes, all three. REST is most common; GraphQL requires specialized techniques (introspection, query depth/complexity abuse, batching attacks); SOAP needs WSDL analysis and XML injection focus. We adapt methodology to your specific stack.

How long does an API engagement take?

Most APIs complete in 1-2 weeks based on endpoint count. A 20-endpoint API typically finishes in 5-7 days; a 100+ endpoint enterprise API takes 2 weeks. We respond instantly, so testing starts same/next business day after scoping.

What does it cost in INR?

Pricing starts from INR 20,000 and varies by endpoint count, authentication complexity and business logic depth. Fixed price confirmed after a free 30-minute scoping call.

How quickly can you start?

Instant response, no delay. We typically respond within an hour during business hours, send a fixed-price proposal within 24-48 hours under signed NDA, and start active testing the same day or next business day after sign-off.

Do you need our API documentation?

Strongly preferred. OpenAPI/Swagger specs, Postman collections, or GraphQL introspection enable us to test exhaustively. We can also work black-box, discovering endpoints via traffic capture, but coverage is necessarily lower without docs.

Will testing affect our production API?

We recommend a staging environment that mirrors production. If production must be tested, we coordinate carefully on blackout windows, rate limits and excluded destructive operations to avoid disruption.

Ready to Get Started?

Codesecure is ISO/IEC 27001:2022 certified. Our certified team delivers fixed-price engagements with executive-ready outcomes. Free 30-minute scoping call, instant response, no obligation.

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