API SECURITY / EXTERNAL SURFACE
Every API You Expose Is an Attack Surface. Secure All of Them.
Jsmon discovers every API across your external surface — documented or not — then autonomously tests for auth bypass, data exposure, BOLA, injection, and business logic flaws using AI agents trained on real-world bug bounty methodology. No spec files required. No traffic mirroring. Just a domain.
API SURFACE / LIVE DISCOVERY
Monitor and manage your API endpoints
SECURING APIs FOR
FINTECH • CLOUD • SAAS • E-COMMERCE • HEALTHCARE
THE API SPRAWL PROBLEM
Your API Surface Is Bigger Than You Think
WHAT YOU KNOW
Documented APIs in Swagger/OpenAPI specs • APIs behind your API gateway
WHAT YOU DON’T KNOW / 80% OF THE SURFACE
Undocumented endpoints hardcoded in JavaScript bundles • Legacy v1/v2 APIs still live • Internal APIs accidentally exposed • Partner APIs returning your data • Open GraphQL introspection • Debug, admin, and mobile backend routes
JSMON DISCOVERS ALL OF IT.
APIs Are the #1 Attack Vector — And the Least Visible
APIs account for 91% of web attack traffic
APIs carry authentication flows, payment processing, and PII retrieval — and most organizations still can’t list every active endpoint.
Organizations have 3× more APIs than they think
Shadow APIs embedded in JavaScript, legacy versions never sunset, and internal services routed externally make up most hidden surface.
BOLA is the #1 API vulnerability for the 5th consecutive year
BOLA, mass assignment, and broken function-level auth demand context-aware testing that understands API business logic.
API Discovery Without Specs, Agents, or Traffic Mirroring
01 / JS ANALYSIS
JavaScript Analysis at Scale
Parses bundles, source maps, route definitions, parameters, and auth patterns.
02 / ENUMERATE
Active Endpoint Enumeration
Probes base URLs and intelligently fuzzes versions, admin, debug, and health paths.
03 / FINGERPRINT
Protocol Detection
Identifies REST, GraphQL, gRPC-Web, WebSocket, SOAP, auth, and response formats.
04 / INFER
Schema Inference
Builds a working API spec from request and response patterns — even when none exists.
05 / CONTINUOUS
Inventory Sync
Tracks first-seen, last-seen, change history, and ownership as your surface shifts.
Full OWASP API Security Top 10 Coverage — Autonomously
API1:2023 / BOLA
Swaps object IDs across user contexts to validate horizontal privilege escalation.
API2:2023 / BROKEN AUTHENTICATION
Tests JWT confusion, token reuse, OTP weaknesses, brute force, and missing login limits.
API3:2023 / OBJECT PROPERTY AUTH
Detects mass assignment and excessive data exposure across privilege levels.
API4:2023 / RESOURCE CONSUMPTION
Probes rate limits, payload abuse, pagination, and GraphQL depth/complexity bombs.
API5:2023 / FUNCTION AUTHORIZATION
Attempts privileged DELETE, PUT, user management, and configuration changes with low privilege.
API6:2023 / BUSINESS FLOWS
Tests coupon stacking, inventory manipulation, checkout bypasses, and bulk-account abuse.
API7:2023 / SSRF
Injects metadata, internal URLs, and DNS rebinding payloads with out-of-band validation.
API8:2023 / MISCONFIGURATION
Checks CORS, security headers, debug modes, Swagger, GraphQL Playground, and defaults.
API9:2023 / INVENTORY MANAGEMENT
Cross-references discovered surface against specs to expose shadow and deprecated APIs.
API10:2023 / UNSAFE CONSUMPTION
Tests third-party response injection, redirect chains, webhooks, and trust-boundary violations.
Every finding includes a proof-of-concept request/response pair and a remediation guide mapped to the OWASP category.
Your Complete API Inventory — Documented or Not
2,847 API endpoints discovered | 412 undocumented | 67 with no authentication | 23 critical findings
ENDPOINT METHOD PROTOCOL AUTH TYPE FIRST SEEN RISK STATUS
/api/v2/users/{id}/orders GET REST Bearer 2025-03-11 HIGH TESTING
/internal/graphql POST GRAPHQL No Auth 2026-08-16 CRIT SHADOW
/api/v1/admin/config GET REST No Auth 2024-02-02 CRIT LEGACY
API DISCOVERY SOURCES
JS bundle analysis 48%
Active enumeration 29%
Source maps 15%
GraphQL introspection 8%
RISK DISTRIBUTION
CRITICAL 23 HIGH 89 MEDIUM 204
LOW 412 INFO 2,119
RECENT FINDINGS / BOLA on /api/v2/users/{id}/orders — any authenticated user can access any user’s orders
JWT algorithm confusion on /auth/token — accepts ‘none’ algorithm
Shadow GraphQL endpoint at /internal/graphql — introspection enabled, no auth required
Deep GraphQL Security — Not an Afterthought
Jsmon detects GraphQL endpoints even when they aren’t at /graphql by analyzing JavaScript bundles for query strings, mutations, and Apollo or Relay client configurations. It inventories every type, query, mutation, and subscription while assessing authorization per-field.
Tests: introspection disclosure, query depth/complexity, batching abuse, field-level authorization bypass, mutation IDOR, and schema-based data leakage.
SCHEMA / EXTERNAL GRAPHQL
Query
├─ user(id) ✓ authorized
├─ internalUsers() ⚠ excessive data
└─ billingAdmin() ⚠ unauthorized access
Mutation
├─ updateProfile() ✓ scoped
└─ setUserRole() ⚠ no rate limit
Subscription
└─ auditEvents() ⚠ field leakage
Why API Security Teams Choose Jsmon
DISCOVERY-FIRST, NOT SPEC-DEPENDENT
Most API security tools only test what you upload. Jsmon starts with a domain and discovers the APIs an attacker can actually reach.
SWAGGER FILE → LIMITED TESTS
DOMAIN → FULL ENDPOINT MAP
SIGN UP → VERIFY → PURCHASE → REFUND
↘ EXPLOIT PATH
BUSINESS LOGIC TESTING, NOT JUST FUZZING
Agents model real workflows and test the shortcuts generic DAST misses: skipped verification, unauthorized refunds, and cross-user account changes.
POWERED BY THE LARGEST JS INTELLIGENCE DATASET
Routes, parameter names, auth patterns, and base URLs extracted from 4.2 billion+ indexed JavaScript endpoints inform every enumeration.
4.2B+
GLOBAL JS ENDPOINTS
Fits Into Your API Lifecycle
SECURITY / SLACK • JIRA • SPLUNK • MICROSOFT SENTINEL • PAGERDUTY • SERVICENOW • WEBHOOKS • SOAR
API & DEV / POSTMAN • SWAGGER/OPENAPI • GITHUB ACTIONS • GITLAB CI • JENKINS • REST API
Export discovered API specs as OpenAPI 3.0. Trigger scans from CI/CD pipelines on every deploy.
How Jsmon API Security Compares
| CAPABILITY | API GATEWAY WAF | GENERIC DAST | API SCANNER | JSMOM API SECURITY |
|---|---|---|---|---|
| Discovers undocumented APIs | × | × | Requires spec | ✓ JS + active enum |
| Shadow API detection | × | × | Limited | ✓ Full surface |
| GraphQL deep testing | × | Basic | Some | ✓ Schema + auth + depth |
| BOLA / IDOR testing | × | × | Basic | ✓ Multi-context exploit |
| Business Logic testing | × | × | Limited | ✓ Workflow-aware agents |
| Vulnerability chaining | × | × | × | ✓ Cross-endpoint chains |
| Proof-of-exploit | × | × | Some | ✓ Full request/response |
| No spec / no agent required | N/A | ✓ | × | ✓ Domain only |
Built for Every API Security Challenge
API INVENTORY & GOVERNANCE
Maintain a continuously updated, externally validated inventory that catches every endpoint your gateway doesn’t know about.
PRE-RELEASE SECURITY TESTING
Trigger scans on every deploy and catch BOLA, broken auth, and data exposure before production.
THIRD-PARTY & PARTNER API RISK
Discover what vendor and partner APIs expose, how they authenticate, and whether your data is reachable.
COMPLIANCE & AUDIT
Generate continuous, audit-ready proof mapped to PCI-DSS, SOC 2, ISO 27001, and OWASP API Top 10 coverage.
“We had 300 APIs in our Swagger docs. Jsmon found 1,100 live endpoints — including a v1 user endpoint with no auth that had been leaking PII for two years. No other tool even knew it existed.”
Senior Red Team Lead, Entertainment Company
How Many APIs Are You Exposing Without Knowing?
Discover every API on your external surface in minutes. No specs to upload, no traffic to mirror, no agents to install — just a domain.
GOT QUESTIONS?
Everything You Need to Know, All in One Place
Discover quick and comprehensive answers to common questions about our platform, services, and features.
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