Expose authorization flaws, token vulnerabilities, SSRF, and business logic gaps before malicious actors do. Leverage expert human intelligence matched with our continuous API penetration testing platform.
In modern cloud-native architectures, APIs are the primary gateway to enterprise databases and intellectual property. Automated vulnerability scanners often miss complex multi-user state validation loops and business logic paths. XC0MRADE offers comprehensive API penetration testing services that go beyond basic syntax scans. Our security specialists map and analyze your REST, GraphQL, and gRPC endpoints to expose authorization flaws, token manipulation risks, and input sanitization gaps. We provide deep coverage of the entire OWASP API Top 10 vulnerabilities, helping development teams secure endpoints prior to deployment.
API penetration testing is an offensive security assessment that focuses on identifying vulnerabilities within application programming interfaces (APIs). Web application testing primarily evaluates the rendered user interface (UI) to look for client-side security gaps. In contrast, API pentesting targets the backend transaction layer, simulating how an adversary might directly interact with endpoints via custom scripts and requests.
This method is critical for uncovering Broken Object Level Authorization (BOLA), where attackers alter URL request parameters or database IDs to download adjacent records. It also reveals Broken Function Level Authorization (BFLA), where unauthorized requests trigger administrative operations. By verifying rate limits, request schema structures, and JWT token rotation, API penetration testing ensures your interfaces remain secure under adversarial pressure.
Our structured approach combines advanced fuzzing scripts with deep manual inspection.
Upload your OpenAPI/Swagger specifications, Postman collections, or target routes to set up target assets in minutes.
Deploy automated test suites to scan endpoints for rate limit boundaries, CORS misconfigurations, and standard input sanitization gaps.
Offensive security specialists manipulate state parameters, authorization tokens, and nested queries to expose logic flaws.
Findings are verified, prioritized by CVSS, and streamed straight to your dashboard with re-testing enabled.
We focus on the vulnerabilities that cause the greatest risk to digital business logic. Our researchers cover the entire spectrum of API-specific weaknesses.
Our security researchers inspect how your backend validates user permissions for database objects. We actively manipulate object IDs (IDOR) to verify that users cannot read or modify adjacent tenant datasets.
We map hierarchical roles and test endpoint access controls. We ensure non-admin users cannot trigger administrative commands by altering HTTP verbs or querying hidden routing endpoints.
API endpoints without rate limits are vulnerable to denial of service and compute inflation. We stress-test payload sizes, request frequencies, and execution timeouts to ensure robust server limits.
We audit token signing algorithms, signature validation, expiration lifecycles, and claim structures. We ensure your tokens cannot be tampered with, forged, or replayed to bypass verification gates.
We check if input parameters accepted by your APIs allow attackers to trigger outbound requests from your servers, exposing internal services, cloud metadata endpoints (IMDS), or private backends.
We identify endpoints that bind incoming request objects directly to internal databases without strict filtering. This prevents attackers from elevating privileges by appending unexpected fields.
Receive developer-ready technical briefs containing detailed HTTP request/response payloads, reproduction scripts, remediation guidelines, and CVSS severity rankings. Secure PDF exports satisfy third-party vendor audits and compliance needs.
We believe security testing is a continuous lifecycle. Once you deploy hotfixes or security patches, you can trigger re-test validations directly from your dashboard. Our verifying engineers perform manual re-tests at no extra cost.
XC0MRADE API penetration testing maps directly to global compliance benchmarks, satisfying key requirements for data isolation, token security, and endpoint authorization auditing.
Our platform bridges the gap between automated scanning speed and human cognitive depth. While legacy VAPT firms take weeks to coordinate scoping calls and deliver static PDFs, XC0MRADE initiates campaigns within 48 hours. Our vetted researchers specialize in parsing Postman specs and reverse-engineering complex API authorization rules. We deliver verified findings straight to your DevSecOps pipeline (Jira, Slack, GitHub) as soon as they are triaged, allowing your engineers to patch critical bugs in real time.
Find answers to standard security questions regarding API campaigns and continuous integration.
API penetration testing is a targeted security assessment focusing on API endpoints, web services, and internal microservice integrations. Security specialists simulate cybercriminal techniques to test authentication mechanisms, data exposure limits, and business logic flaws across REST, GraphQL, and gRPC architectures.
Broken Object Level Authorization (BOLA), also known as Insecure Direct Object Reference (IDOR), is a critical API security vulnerability where endpoints fail to validate if the requesting user has permission to access a specific object ID. Attackers exploit BOLA by manipulating resource identifiers in API requests to access adjacent tenant files or databases.
While BOLA (Broken Object Level Authorization) involves accessing data objects belonging to other users, BFLA (Broken Function Level Authorization) occurs when an API fails to validate user roles before executing a function. BFLA enables standard users to trigger administrative operations or endpoints reserved for high-privilege accounts.
Securing REST APIs requires enforcing strong authentication (like OAuth2/JWT), validating all inputs against strict schemas, implementing rate limiting (throttling), mapping logical context rules to database queries, and conducting regular API penetration testing.
We test GraphQL implementations by nesting circular relation queries to check if the backend parser fails to enforce depth caps or query complexity thresholds. If unmitigated, deep GraphQL queries can trigger server resource exhaustion or server outages.
We test rate-limiting thresholds by spinning up multi-threaded batches of requests against authentication, search, and transactional endpoints. We check if servers enforce rate boundaries across user sessions, IP blocks, and token scopes to prevent denial of service (DoS).
We verify JSON Web Token (JWT) implementations by testing for header signature bypasses (e.g. changing algorithm to "none"), checking key signing strength, validating token expiration lifecycles, and testing if expired tokens or tokens from other environments are rejected by validation gateways.
Stop guessing if your endpoints are secure. Run programmatic fuzzing and human red teaming tests on your APIs.