Manual, adversary-driven API penetration testing aligned to OWASP API Security Top 10 and ASVS. BOLA, mass assignment, broken authentication, rate-limit, and business logic testing delivered in 10 business days.
Free Assessment
API security testing is a manual, adversary-driven review of every endpoint your APIs expose - REST, GraphQL, gRPC, and SOAP - for authentication, authorisation, business logic, and data-exposure weaknesses. ISpectra combines the OWASP API Security Top 10 with deep business-logic abuse so your API pentesting covers what real attackers target.
API is now the largest attack surface in most enterprises. Mobile apps, single-page apps, partner integrations, and internal services all talk API. Most breaches in the last three years trace back to an API authorisation flaw: broken object-level authorisation, broken function-level authorisation, mass assignment, rate-limit abuse, and excessive data exposure. Scanners miss these because they are logic flaws, not CVE-class defects.
Our API penetration testing is manual, authenticated, multi-role, and mapped to the OWASP API Security Top 10 (2023) and ASVS Level 2. We use Burp Suite Professional, Postman, Insomnia, GraphQL-specific tooling, grpc-web clients, and custom ISpectra fuzzers to exercise every endpoint under tampered, replayed, and race-condition flows.
You get a named lead tester, a developer-grade report with code-level fix guidance, OpenAPI and GraphQL schema gap mapping, a retest, and a signed VAPT certificate mapped to SOC 2, ISO 27001, PCI DSS, HIPAA, and DPDP control IDs.
OpenAPI-driven coverage plus schema gap and parameter fuzzing.
REST API security testingIntrospection, query depth, aliasing, batch, and cost abuse.
GraphQL pentestinggRPC reflection and SOAP XXE plus WS-Security testing.
Legacy and modern protocolsBOLA, BFLA, mass assignment, unrestricted resource, auth abuse.
Top 10 and ASVSRace, state-machine, quota, and approval-chain exploitation.
Abuse-case testingA clean VAPT report opens doors with enterprise procurement, lowers cyber insurance premiums, and shortens the audit cycle. Skip it, and every single one of those costs compounds.
Pick the right test for your audit, buyer, or insurance deadline.
Our recommendation: Our recommendation: Run manual API penetration testing annually per major release, plus API scanning in CI to guard against regression. Customers on this cadence reduce critical API findings by 80 percent year over year.
One engagement. One named lead tester. Eight deliverables. Zero scope creep.
Schema gap analysis for REST (OpenAPI) and GraphQL (SDL).
JWT, OAuth, API key, SAML, mTLS, and refresh-token abuse.
Broken object and function level authorisation across every role.
JSON tamper and over-posting, sensitive data exposure.
Quota abuse, cost-of-query GraphQL abuse, batching exploitation.
Race, state-machine, approval chain, and payment flow tampering.
SQLi, NoSQLi, command, template, SSRF, XXE, and deserialisation.
Full retest of every finding plus reissued VAPT certificate.
OWASP API Security Top 10 (2023), ASVS, PTES, and CREST-aligned. Every finding is backed by a reproduction script, CVSS score, and a code-level remediation hint.
Scoping workshop, OpenAPI and GraphQL SDL import, tenant and role matrix, signed rules of engagement.
Deliverable: Schema + ScopeUndocumented endpoint hunting, version sprawl detection, and shadow-API identification.
Deliverable: API Surface MapJWT, OAuth, API key, mTLS, refresh-token and session-replay testing.
Deliverable: Auth FindingsObject and function level authorisation testing across every role and tenant combination.
Deliverable: AuthZ FindingsJSON tamper, over-posting, sensitive data return, and PII leak testing.
Deliverable: Exposure FindingsRace, state-machine, approval chain, quota, batching, and GraphQL cost abuse testing.
Deliverable: Logic FindingsSQLi, NoSQLi, command, template, SSRF, XXE, and deserialisation exploitation.
Deliverable: Injection FindingsDeveloper-grade report with per-endpoint fix hints, OWASP API mapping, CVSS 3.1 scoring, and live debrief.
Deliverable: Draft ReportRetest every finding and reissue the signed VAPT certificate for auditors, customers, and partners.
Deliverable: VAPT CertificateEvery deliverable is built for a measurable business outcome: new revenue, cleaner audit, lower insurance premium, or faster ransomware readiness.
Standards-first coverage that satisfies every serious buyer.
The two flaws that drive most API breaches, hunted every engagement.
OpenAPI and GraphQL gaps mapped so engineering can fix at the contract layer.
Cost, alias, batch, depth, and gRPC reflection testing included.
24-hour fixed-fee quote from a scoping call.
One full retest and reissued certificate included in every engagement.
Node, Go, Java, .NET, and Python remediation hints in the report.
Evidence satisfies SOC 2, ISO 27001, PCI DSS, HIPAA, and DPDP auditors.
Regulated, high-stakes, multi-framework. Wherever trust is the product, we test.
API-first platforms where partner and customer integrations demand proof.
Open Banking, ABDM, HL7 FHIR, and insurance APIs tested under regulator rules.
Every enterprise RFP asks for API security testing evidence.
Pre-close API pentest plus post-integration rescan.
Multi-tenant APIs tested for tenant escape, BOLA, and multi-role authorisation.
Open Banking, UPI, and wallet APIs tested against RBI and SEBI cyber frameworks.
HL7 FHIR, ABDM, and payer APIs tested against HIPAA and HITRUST.
Product, cart, checkout, and payment APIs tested for coupon and pricing abuse.
Device and telemetry APIs tested for authentication, authorisation, and rate-limit abuse.
G2C and G2B APIs tested under CERT-In empanelled scope and MeitY guidelines.
“ISpectra Technologies brought deep expertise in cybersecurity and DevSecOps to our projects, playing a crucial role in our EDR Tool implementations and SOC 2 compliance. Their solutions were tailored to our business and their proactive approach improved both our agility and security posture. ISpectra felt more like an extension of our team than an external vendor.”
“ISpectra Technologies brought deep expertise in cybersecurity and DevSecOps to our projects, playing a crucial role in our EDR Tool implementations and SOC 2 compliance. Their solutions were tailored to our business and their proactive approach improved both our agility and security posture. ISpectra felt more like an extension of our team than an external vendor.”
“Our Accounts Receivables have started to plummet since implementing RCMEdge. It provides electronic AR follow-up and identifies claims needing extra attention so we don't exhaust valuable resources on claims processing as normal. As a result, we're much more productive and cash flow favorable. Highly recommended!”
“The VAPT report was presented in a structured and professional manner with clear categorization of vulnerabilities by severity. The depth of technical findings, along with practical remediation suggestions, provided our team with valuable insights. The clarity of documentation made it easy for our internal teams to translate recommendations into actionable steps.”
“The VAPT assessment was thorough and well-documented, providing a clear view of identified vulnerabilities with practical remediation guidance. The prioritization of risks and actionable recommendations enabled our teams to take corrective measures with clarity and confidence. We truly appreciate the expertise and professionalism your team brought to this engagement.”
“We have successfully secured our ISO 27001 certification through GLOCERT, and ISpectra Technologies was pivotal throughout. Your team's contribution was exceptional — not only in navigating the audit process but in the structural refinement of our internal policies and the practical application of ISMS best practices. The attention to detail ensured that our procedures are not just compliant, but operationally sound. We value the high standard of consultancy ISpectra has maintained and look forward to a continued professional association.”
“On behalf of the entire team, thank you for your outstanding efforts in obtaining the ISO certificate. Your dedication, hard work, and commitment have been instrumental in achieving this important milestone. We sincerely appreciate all your support throughout the process. We would also like to extend our special thanks to Mr. Bharath Raj for his valuable contribution and support in achieving this certification. Thank you once again for your efforts and commitment.”
Trusted by 500+ Global Enterprise Clients
Answers to the questions buyers ask us most often during a api security testing evaluation: scope, pricing, methodology, tools, safety, reporting, retesting, and compliance mapping.
Our lead testers can walk you through scope, pricing, SLAs, methodology, and compliance mapping in a 30-minute no-pressure call.
API security testing is the process of finding authentication, authorisation, and business-logic flaws in your APIs before an attacker does. APIs now carry the majority of enterprise traffic, and OWASP API Security Top 10 flaws like BOLA, BFLA, and mass assignment drive most modern breaches. Scanners cannot find these - manual API penetration testing can.
Yes. Every modern API pentest we run covers REST (OpenAPI and raw), GraphQL (introspection, depth, alias, batch, cost), gRPC (reflection, transcoding) and SOAP (XXE, WS-Security). We also test mTLS-protected and service-mesh-protected APIs across Kubernetes and serverless runtimes.
Standard API penetration testing engagements take two to three weeks of testing plus one week of reporting. Multi-role, multi-tenant, and regulated-industry engagements can run four to six weeks. Retests are delivered within 10 business days of your remediation cutoff.
OWASP API Security Top 10 (2023), OWASP ASVS, OWASP WSTG, PTES, and CREST-aligned. Every finding is tagged to a specific OWASP API reference so your auditors, customers, and engineering teams can trust the rigor.
Burp Suite Professional with ISpectra extensions, Postman, Insomnia, GraphiQL, graphql-cop, grpcurl, Akto, mitmproxy, ffuf, sqlmap, and proprietary tooling. Tool selection follows the test narrative, never a vendor checklist.
Preferred but not required. A schema accelerates coverage and raises confidence. Without one we run surface discovery against a staging environment, map endpoints manually, and build an OpenAPI artefact as a deliverable of the engagement. Undocumented APIs often hide the worst findings.
No. We default to staging or QA. When production is in scope we use rate-limited, throttled, consent-scoped profiles inside agreed blackout windows. Over 450 engagements we have never caused a reportable service incident.
Executive summary, business-impact narrative, OWASP API Top 10 mapping, per-endpoint technical appendix with reproduction scripts, CVSS 3.1 scoring, schema gap map for OpenAPI or GraphQL, developer fix hints, and a signed VAPT certificate.
Yes. Our API security assessment report is written to satisfy SOC 2 CC7.4, ISO 27001 A.8.29, PCI DSS 6.2 and 11.4, HIPAA 164.308(a)(8), and the DPDP Act reasonable security safeguards test. RBI, SEBI, and CERT-In empanelled letters are available on request.
Single-service API engagements start at USD 4,200. Multi-role enterprise SaaS or platform engagements start at USD 9,800. Full annual retainers covering quarterly retest from USD 24,000. Fixed-fee quote within 24 hours of a scoping call.
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Stop guessing where you are exposed. Start running api security testing on a fixed fee, fixed date, and a signed certificate auditors accept. Retest included.
