Senior-led API security testing that validates authorization, data exposure, business logic, and abuse paths across the services your product depends on.
Working with Huntrix was smooth and productive. [They] delivered a risk assessment that was both actionable and easy to communicate across the organization.
Brian Kendzior
VP of AI, RIOS Intelligent Machines
Angelica Rivera
CEO, Colmex Construction
I had the pleasure of working closely with Miguel. He has an incredible amount of knowledge. I’d work with Miguel again in a heartbeat and would encourage you to if given the opportunity.
Joseph Noa
Vulnerability Analyst, Pentester
Franco Medrano
Software Engineer, Amazon
Dr. Smith
Owner, OPS Family Care
Weak Authz Testing
Shallow Coverage
Poor Context Gathering
Generic Reporting
Static Output
Signal
What Happens
Impact
Weak Authz Testing
Testers check whether endpoints require authentication, but do not deeply test object-level, function-level, and tenant-level access controls.
Users may access data, actions, or accounts they should never reach.
Shallow Coverage
The test only checks if endpoints respond correctly, without looking at how they are actually used in real user actions or workflows.
Abuse paths tied to users, roles, objects, and business actions can remain undiscovered.
Poor Context Gathering
The testing team does not understand roles, data models, integrations, or sensitive workflows before testing begins.
Findings become generic, and the highest-risk API behaviors may be missed.
Generic Reporting
Issues are described as technical defects without explaining customer, revenue, compliance, or operational impact.
Engineering teams have to translate the report into priorities and remediation work.
Static Output
Findings are delivered as a PDF with limited support for ownership, tracking, retesting, or closure.
API vulnerabilities become documentation instead of actionable work your team can resolve and verify.
Data Access Clarity
Understand whether users, roles, tenants, or integrations can access data they should not.
Authorization Confidence
Validate object-level, function-level, and role-based controls across sensitive API actions.
Abuse Path Discovery
Identify ways attackers can chain API behavior, automate requests, manipulate workflows, or bypass intended limits.
Engineering-Ready Findings
Give developers clear evidence, reproduction steps, affected endpoints, impact, and remediation guidance.
Better Product Decisions
Connect API security issues to customer trust, compliance exposure, business risk, and product architecture.
Resolution Tracking
Move findings into Jira, Notion, ServiceNow, or the workflow your team already uses.
Product and engineering leaders responsible for API-driven applications
Companies with customer-facing APIs
Platforms with multiple user roles, tenants, or organizations
Teams preparing for customer security reviews
Companies preparing for SOC 2, ISO 27001, PCI, HIPAA, or customer assurance requests
Broken object-level authorization
Broken function-level authorization
Tenant isolation failures
Role and permission abuse
Session and refresh token behavior
Shadow or undocumented endpoints
Authentication and session management
Authorization and access control
Business logic flaws
Account takeover paths
Input validation and injection risks
Sensitive data exposure
File upload and content handling
Workflow bypasses
Transaction and state manipulation
Client-side and server-side security issues
OWASP Top 10 coverage
Application-specific attack paths
Professional cybersecurity services
We learn the application, user roles, sensitive workflows, business goals, timeline, and compliance needs.
We identify the areas most likely to create meaningful impact: customer data, payments, admin actions, permissions, integrations, authentication flows, and high-value workflows.
Senior testers assess the application using real attacker techniques, not just automated scanning.
When useful, we use AI and automation to accelerate coverage and test ideation. Human judgment stays in control.
We test broken assumptions, privilege abuse, workflow bypasses, state manipulation, and edge cases that require human reasoning.
We validate findings, remove noise, prioritize by impact, and explain why each issue matters.
Findings can move into Jira, Notion, ServiceNow, or the workflow your team already uses.
We confirm fixes, update statuses, and help your team prove remediation.
Continuous Testing
For teams shipping often and needing recurring assessment instead of a once-a-year snapshot.
Manual Pentest
For teams that need depth, business logic assessment, and human attacker simulation.
AI-Enhanced Pentest
For teams that want efficient coverage and accelerated test planning, with senior testers still in control.
Hybrid Testing
For teams that want manual depth supported by targeted automation and AI-enhanced workflows.
You can expect the following from our team:
Professional cybersecurity services
No.
Risk Score
Finding
1
Resolved
Missing Authentication on Internal API Route
2
Critical
Unauthenticated API Data Exposure
3
Critical
Hardcoded CI/CD Deployment Token Allowed Unauthorized Pipeline Access
4
Critical
Prompt Injection Enabled Unauthorized Retrieval of Private User Data
5
High
AI Assistant Failed to Enforce Tenant Boundaries During Retrieval-Augmented Responses
6
High
Session Tokens Remained Valid After Logout
7
High
Stored Cross-Site Scripting Allowed Script Execution in Administrative User Sessions
8
Medium
Missing Rate Limiting on Login API Supports Password Spraying
9
Medium
Missing CI/CD Dependency Vulnerability Gates
10
Low
Security Headers Missing from Web Application Responses
Critical
async function testPublicEndpoint() {
const response = await fetch("https://api.example.com/api/accounts/users", {
method: "GET",
headers: {
"Accept": "application/json"
// No Authorization header included
}
});
const data = await response.json();
...
console.table(data.slice(0, 3).map(user => ({
id: user.id,
username: user.userName,
email: user.email,
role: user.roles?.[0]
})));
}
testPublicEndpoint();
Huntrix gives your team direct access to senior security practitioners without the slow, expensive bureocratic layers that often make consulting painful, bloated and expensive for no reason.
API pentesting is a security assessment that tests APIs for vulnerabilities an attacker could exploit. It evaluates areas such as authentication, authorization, object access, tenant isolation, sensitive data exposure, rate limiting, business logic, and integration abuse.
Web application pentesting focuses on the user-facing application experience: pages, forms, sessions, workflows, and browser-based behavior.
API pentesting focuses on the service layer behind the product: endpoints, objects, tokens, roles, tenants, integrations, request logic, and machine-to-machine trust.
The two often overlap, but API testing goes deeper into how data and actions are exposed through the backend.
Broken object-level authorization happens when a user can access an object (record, account, file, or resource) they should not be allowed to access. This is one of the most important API risks because APIs often expose direct object references. For example, a user changes an ID in an API request and can view another customer’s invoice, profile, file, order, organization, or internal record.
Common API security risks include broken object-level authorization, broken function-level authorization, excessive data exposure, weak token handling, and undocumented or forgotten endpoints.
The highest-risk findings usually involve unauthorized access to data, accounts, actions, or tenant resources.
Tenant isolation testing checks whether users from one organization, workspace, account, or customer environment can access another tenant’s data or actions.
For SaaS products, this is critical. A tenant boundary failure can expose customer data across accounts and create serious legal, compliance, and trust issues.
Yes, but documentation improves speed and coverage.
When documentation is limited, APIs can be mapped through application traffic, observed requests, available collections, schemas, endpoint discovery, and manual exploration. This usually adds time because the testing team has to reconstruct how the API works before deeper testing begins.
API pentest scope usually depends on the number of endpoints, user roles, tenants, authentication flows, sensitive objects, business workflows, integrations, API types, documentation quality, and testing goals.
A simple internal API with a few endpoints requires a different approach than a multi-tenant SaaS platform with complex roles, partner integrations, and sensitive customer data.
Timeline depends on scope and complexity.
The main factors are:
We recommend a focused timeline based on the application and business risk surface, not a generic package, or “one size fits all” approach.
API testing can include REST APIs, GraphQL APIs, internal APIs, external APIs, partner APIs, mobile application APIs, microservice APIs, and APIs used by web applications.
The testing approach changes based on how the API is designed, authenticated, documented, and used by the product.
Yes. API pentesting supports compliance and customer assurance by providing third-party security validation, documented findings, remediation evidence, and proof that sensitive systems were tested.
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By providing your information, you consent to us contacting you by email or phone regarding the data provided. We do not sell your personal information, and you can withdraw consent at any time. By submitting this form, you agree to our Privacy Policy and Terms of Service.
