APIs Security Services

Protect your APIs from business logic flaws, authentication weaknesses, and data exposure.

Simulates real-world attacks against your APIs using provided documentation (Postman/Swagger collections, requests with headers and tokens). Our experts validate authentication, authorization, and business logic to uncover vulnerabilities that automated scanners often miss.

Packages:

Small Package: Up to 25 endpoints → ~3 days → €900
Medium Package: Up to 50 endpoints → ~5 days → €1,500
Large Package: Custom scope (e.g., >50 endpoints, complex GraphQL APIs, microservices) → tailored pricing

Get a detailed technical report (vulnerabilities, exploit paths, impact, risk rating) + executive summary and remediation recommendations

Gray-Box API Penetration Testing

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Gray-Box API Penetration Testing

Prerequisites

Postman/Swagger collection, request samples with required headers, valid credentials, API documentation

Test Type

Automated + Manual with insider knowledge

Used Tools

Covered Vulnerabilities

Actions

Combination of API testing frameworks, fuzzers, JWT analyzers, Postman, SOAP UI, Burp Suite Pro, custom scripts, and manual exploitation

Reporting

Detailed technical report (vulnerabilities, exploit paths, impact, risk rating) + executive summary and remediation recommendations

Duration and Price

Small Package: Up to 25 endpoints → ~3 days → €900

Medium Package: Up to 50 endpoints → ~5 days → €1,500

Large Package: Custom scope (e.g., >50 endpoints, complex GraphQL APIs, microservices) → tailored pricing

Authentication & Authorization Issues

Weak authentication mechanisms (passwords, missing MFA, JWT flaws)
Insecure session/token management (reuse, weak expiration, none-algorithm bypass)
Privilege escalation (horizontal & vertical)
Broken object-level authorization (IDOR)
Broken function-level authorization (accessing restricted endpoints)

Data Exposure & Input Validation

Sensitive data exposure through API responses
Insecure property manipulation (changing object fields)
Information leakage in error messages/logs
GraphQL introspection enabled / excessive data exposure
Insecure input validation (injection, oversized requests, parameter pollution)

Business Logic & Rate Limiting

Sensitive business flow abuse
Lack of rate limiting/throttling
API abuse via undocumented parameters
Bypassing rate limiting via aliases or batching (GraphQL-specific)

Configuration & Infrastructure

Outdated or exposed API versions
Exposed non-production environments
Insecure 3rd-party API integrations
Misconfigured SSL/TLS or insecure API endpoints
Cloud/API misconfigurations (open permissions, exposed keys/tokens)

Advanced Attacks

Server-Side Request Forgery (SSRF) through API requests
JWT manipulation (tampering, brute-forcing signatures)
Token leakage in logs or responses
Chained attacks combining misconfigurations and weak auth

Identify and Report vulnerabilities

Step-by-Step Process

1. Order Service Request

The client orders a "Service Request" by completing the contact form, providing the details of the resources in scope, a brief project description, and contact information.

2. Scope Review & Kick-Off (if applicable)

We review the Service Request and, if necessary, schedule a 30-minute kick-off meeting to discuss the effort estimation, project timeline, and details regarding the in-scope resources. For Black-Box tests, we can proceed directly to the next step.

4. Testing Execution

Our expert team conducts a combination of automated and manual tests, simulating real-world attack scenarios to uncover vulnerabilities and assess security posture.

5. Report Delivery

Upon completion, you'll receive a comprehensive report detailing identified vulnerabilities, their severity levels, and actionable recommendations to enhance your security.

3. Contract and Payment

Once the details are agreed upon, we send the client a contract and invoice. After the contract is signed and payment is received, we begin the testing phase.

APIs Security Services

Protect your APIs from business logic flaws, authentication weaknesses, and data exposure.

Simulates real-world attacks against your APIs using provided documentation (Postman/Swagger collections, requests with headers and tokens). Our experts validate authentication, authorization, and business logic to uncover vulnerabilities that automated scanners often miss.

Gray-Box API Penetration Testing

Prerequisites

Postman/Swagger collection, request samples with required headers, valid credentials, API documentation

Test Type

Automated + Manual with insider knowledge

Used Tools

Covered Vulnerabilities

Actions

Combination of API testing frameworks, fuzzers, JWT analyzers, Postman, SOAP UI, Burp Suite Pro, custom scripts, and manual exploitation

Reporting

Detailed technical report (vulnerabilities, exploit paths, impact, risk rating) + executive summary and remediation recommendations

Duration and Price

Small Package: Up to 25 endpoints → ~3 days → €900

Authentication & Authorization Issues

Identify and Report vulnerabilities

Step-by-Step Process

1. Order Service Request

The client orders a "Service Request" by completing the contact form, providing the details of the resources in scope, a brief project description, and contact information.

2. Scope Review & Kick-Off (if applicable)

We review the Service Request and, if necessary, schedule a 30-minute kick-off meeting to discuss the effort estimation, project timeline, and details regarding the in-scope resources. For Black-Box tests, we can proceed directly to the next step.

4. Testing Execution

Our expert team conducts a combination of automated and manual tests, simulating real-world attack scenarios to uncover vulnerabilities and assess security posture.

5. Report Delivery

Upon completion, you'll receive a comprehensive report detailing identified vulnerabilities, their severity levels, and actionable recommendations to enhance your security.

3. Contract and Payment

Once the details are agreed upon, we send the client a contract and invoice. After the contract is signed and payment is received, we begin the testing phase.

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Contact

APIs Security Services

Protect your APIs from business logic flaws, authentication weaknesses, and data exposure.

Simulates real-world attacks against your APIs using provided documentation (Postman/Swagger collections, requests with headers and tokens). Our experts validate authentication, authorization, and business logic to uncover vulnerabilities that automated scanners often miss.

Gray-Box API Penetration Testing

Prerequisites

Postman/Swagger collection, request samples with required headers, valid credentials, API documentation

Test Type

Automated + Manual with insider knowledge

Used Tools

Covered Vulnerabilities

Actions

Combination of API testing frameworks, fuzzers, JWT analyzers, Postman, SOAP UI, Burp Suite Pro, custom scripts, and manual exploitation

Reporting

Detailed technical report (vulnerabilities, exploit paths, impact, risk rating) + executive summary and remediation recommendations

Duration and Price

Small Package: Up to 25 endpoints → ~3 days → €900

Authentication & Authorization Issues

Identify and Report vulnerabilities

Step-by-Step Process

1. Order Service Request

The client orders a "Service Request" by completing the contact form, providing the details of the resources in scope, a brief project description, and contact information.

2. Scope Review & Kick-Off (if applicable)We review the Service Request and, if necessary, schedule a 30-minute kick-off meeting to discuss the effort estimation, project timeline, and details regarding the in-scope resources. For Black-Box tests, we can proceed directly to the next step.

4. Testing Execution

Our expert team conducts a combination of automated and manual tests, simulating real-world attack scenarios to uncover vulnerabilities and assess security posture.

5. Report Delivery

Upon completion, you'll receive a comprehensive report detailing identified vulnerabilities, their severity levels, and actionable recommendations to enhance your security.

3. Contract and Payment

Once the details are agreed upon, we send the client a contract and invoice. After the contract is signed and payment is received, we begin the testing phase.

Subscribe to our newsletter

Contact

2. Scope Review & Kick-Off (if applicable)

We review the Service Request and, if necessary, schedule a 30-minute kick-off meeting to discuss the effort estimation, project timeline, and details regarding the in-scope resources. For Black-Box tests, we can proceed directly to the next step.