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
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
