API Security Testing Services India — REST, GraphQL & SOAP API Penetration Testing

API Security Testing Services India

APIs are the backbone of modern applications — and the #1 attack target. The OWASP API Security Top 10 covers vulnerabilities like broken authentication, excessive data exposure, and mass assignment that are rampant in Indian fintech, e-commerce, and SaaS applications. MDIT Services provides specialised API Security Testing services in India — going far beyond standard VAPT to probe every endpoint, authentication flow, and data handling logic in your API.

APIs We Test

  • REST APIs — JSON/HTTP, OpenAPI/Swagger documented and undocumented endpoints
  • GraphQL APIs — introspection abuse, batching attacks, nested query DoS
  • SOAP & XML APIs — XXE injection, WSDL enumeration
  • Mobile Backend APIs — iOS/Android app API interception and testing
  • Third-Party Integrations — payment gateways, OAuth flows, webhook security

OWASP API Top 10 Coverage

Broken Object Level Authorization (BOLA/IDOR) · Broken Authentication · Broken Object Property Level Authorization · Unrestricted Resource Consumption · Broken Function Level Authorization · Sensitive Business Flows · Server-Side Request Forgery (SSRF) · Security Misconfiguration · Improper Inventory Management · Unsafe API Consumption

Deliverables & Pricing

  • OWASP API Top 10 mapped findings report with CVSS scores
  • PoC demonstrations for critical vulnerabilities
  • Developer-friendly remediation guidance with code examples
  • Free re-test within 30 days

Pricing: From ₹35,000 for up to 50 endpoints · Custom pricing for large API surfaces

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    OWASP API Security Top 10 — What We Test

    Vulnerability Risk How We Test
    API1 — Broken Object Level Authorization (BOLA) Access other users data by manipulating IDs IDOR testing across all endpoints
    API2 — Broken Authentication Bypass login, steal tokens JWT analysis, OAuth flow testing, session management
    API3 — Broken Object Property Level Authorization Mass assignment, excessive data exposure Response filtering analysis, write property testing
    API4 — Unrestricted Resource Consumption DoS via unlimited requests Rate limiting, pagination, resource quota testing
    API5 — Broken Function Level Authorization Access admin endpoints Horizontal/vertical privilege escalation testing
    API6 — Unrestricted Access to Sensitive Business Flows Abuse business logic via API Business logic testing, workflow bypass
    API7 — Server Side Request Forgery (SSRF) Access internal resources URL parameter manipulation, cloud metadata access
    API8 — Security Misconfiguration Verbose errors, missing headers Header analysis, error handling, CORS policy review
    API9 — Improper Inventory Management Old/undocumented APIs exposed API discovery, version enumeration, shadow API detection
    API10 — Unsafe Consumption of APIs Trusting third-party API data Integration security review, input validation

    API Types We Test

    • REST APIs — JSON/XML over HTTP, the most common API architecture
    • GraphQL APIs — Query-based APIs with unique security challenges (introspection, nested query DoS, authorization bypass)
    • SOAP APIs — XML-based enterprise APIs common in banking and legacy systems
    • gRPC APIs — High-performance APIs used in microservices architectures
    • WebSocket APIs — Real-time bidirectional communication testing

    API Security Testing Process

    1. API Discovery (Day 1) — Enumerate all endpoints, review documentation (Swagger/OpenAPI), identify authentication mechanisms
    2. Authentication Testing (Day 2) — Token analysis, session management, OAuth flow testing, MFA bypass attempts
    3. Authorization Testing (Day 3-4) — BOLA/IDOR testing across all endpoints, privilege escalation, cross-tenant access
    4. Business Logic Testing (Day 5) — Workflow bypass, rate limiting, data validation, race conditions
    5. Injection & Input Testing (Day 6) — SQL injection, NoSQL injection, command injection, SSRF, XXE
    6. Reporting (Day 7) — Detailed findings with CVSS scoring, PoC screenshots, and remediation guidance

    API Security for Different Industries

    • FinTech & Payments — Payment APIs, UPI integrations, open banking APIs. Learn more
    • SaaS — Product APIs, marketplace integrations, webhook security. Learn more
    • E-commerce — Product, cart, order, payment, shipping APIs. Learn more
    • Healthcare — Patient data APIs, EHR integrations, telehealth. Learn more

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    Frequently Asked Questions

    What is API security testing?

    API security testing evaluates REST, GraphQL, SOAP, and gRPC APIs for vulnerabilities including broken authentication, broken object-level authorization (BOLA), mass assignment, SSRF, injection attacks, and rate limiting bypass — following the OWASP API Security Top 10 methodology.

    How much does API penetration testing cost in India?

    API penetration testing cost in India ranges from Rs35,000 for a single API with limited endpoints to Rs1-2 lakh for complex APIs with multiple versions, authentication mechanisms, and business logic. MDIT provides fixed-price quotes after reviewing API documentation.

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