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STRUCTURED API SECURITY TESTING

API Penetration Testing Services

Call on Astro’s team to secure the interconnectivity of your business systems from attacks by prying threat actors.

MITIGATE RISKS AND POTENTIAL THREATS TO YOUR APIS
Safe Testing of Your API Security

Vulnerable applications can cost you an average of $12 million a year in economic loss due to cybersecurity breaches. APIs are some of the most targeted components of modern enterprise applications. At Astro InfoSec, we provide top-class API penetration testing services to fortify your critical integrations by simulating real-world cyber attacks and exposing vulnerabilities that put your business services at risk of compromise.

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key facts

Astro at a Glance

100+
earned certifications across GIAC/SANS, ISC2, CompTIA, and more
100+
years of combined IT & cybersecurity experience
110,000+
investigations completed
1,000+
penetration tests completed
More about us
More about us
Confidence in Every Audit

100% money-back guarantee if we find zero vulnerabilities

We take security seriously and stand by the quality of our assessments. If our expert team conducts a full security audit and finds zero vulnerabilities in your system, we’ll issue a 100% money-back refund—no questions asked. This guarantee ensures that you receive real value from our services, whether it’s uncovering critical weaknesses or gaining full confidence in your security posture. With us, you get results or your investment back.

purpose-led API pentesting

Business Goals to Meet with API Pentesting

We’ve set up our API penetration testing solutions to positively impact areas of our client’s business beyond the tech itself — from operations to brand image and market position. When you reach out to us, our pen testers help you:

Establish Trust with Clients

Demonstrate your dedication to protecting sensitive data passing through application programming interfaces. As an API pen testing company, we reinforce your business solutions so your company can develop increased trust with your customers, partners and investors. Our security protocols also prevent information breaches and other events that can affect your brand name.

Guarantee Business Continuity

Make your operations reliable by averting downtime caused by hackers and system vulnerabilities. The realistic attack simulations conducted by our pen testers in real-life environments allow us to reveal weaknesses in your APIs early so you can implement effective security protocols that support long-term development in a competitive marketplace.

Adhere to Compliance and Regulatory Requirements

GDPR, HIPAA and PCI-DSS regulations mandate robust security testing for APIs. With our API pen testing service, vulnerabilities in your operations can reveal areas of conflict with industry standards. Astro’s penetration testers map vulnerabilities to compliance requirements and deliver a detailed report with prioritized vulnerability-fixing recommendations.

Drive Innovation

A secure application foundation allows your company to enter new markets and develop new features and integration with confidence. Having us as your API penetration testing provider helps prevent dangers such as unauthorized access and loss of data during expansion.

services

Our API Penetration Testing Service

Our API penetration testing service reveals concealed vulnerabilities in your key integrations before hackers can exploit them. For compliant and security-conscious decision-makers, our service pairs real-world attack scenarios with actionable, transparent reporting to lock down your API environment.

We apply:

  • Attack simulation, with our ethical hackers impersonating sophisticated attack groups to target API endpoints and reveal weaknesses in access controls, data flows and authentication.
  • Vulnerability analysis to reveal API flaws that can cause data breaches or system compromise, from poorly designed authorization mechanisms to injection vulnerabilities.
  • Impact prioritization to rank vulnerabilities by severity.
  • Remediation roadmap to provide actionable remediation guidance to your team so they can correct vulnerabilities, comply with best practices and integrate security into future development cycles.
Certifications

We’re Certified Pentesters

Astro's team is certified to carry out pen testing services in line with the industry standards.

our process

Our API Penetration Testing Process

Here at Astro, we have devised a structured engagement approach that helps us deliver full security coverage of all endpoints, data flows and user interactions when clients approach us for API testing services.

Step 1. Scoping and Asset Identification

We like to ensure our testing solutions are not cookie-cutter so we start with a comprehensive evaluation of all networks, systems, web services and mobile applications interacting with your APIs. With this foundation, we are able to better understand your cyber environment and determine optimal testing boundaries and areas of critical importance.

Step 2. Vulnerability Analysis

Our certified security consultants analyze weak spots in your systems that an attacker might use to gain access to your APIs. Using industry standards such as the OWASP API Top 10 as a guiding beacon, we examine issues with authorization mechanisms, session management and input validation, and we channel the results into an actionable blueprint for exploitation tests.

Step 3. Exploitation and Validation

We simulate attack scenarios to exploit identified vulnerabilities and validate their impact on your security posture. Our pen testers utilize similar tactics to those used by malicious actors to try and gain access to your application programming interface. They use both manual and automated techniques, noting which cyber-infiltration strategies work on your systems and those that don't.

Step 4. Reporting and Remediation Support

In the final stage, we compile a detailed API security report with insights into the vulnerabilities we found, their severity and how to effectively address them. We’ll also work hand in hand with your team to implement our security recommendations and retest the API if necessary.

contact us

Start on Your API Security Today

Why not take action to protect your business today? Get in touch with us to forge a resilient path to sustained security.

why us

Why AstroInfoSec Delivers Unmatched API Security Value

Whether or not API vulnerabilities are going to become debilitating security breaches or opportunities to showcase your organization’s resilience depends on the API penetration testing partner you choose. That’s why our value proposition goes beyond just the provision of testing services.

Get Started
Get Started

Certified Experts, Actual Results

With their OSCP, CISSP and more certifications, our security professionals combine practical expertise with deep understanding of emerging security risks to stop advanced attacks from having a foothold. From unsecured direct object references to cross-site scripting holes, we find flaws in your API-driven architecture.

Compliance-Driven Testing

Effortlessly align your application programming interface with GDPR, PCI-DSS and HIPAA mandates. Our penetration tests identify vulnerabilities and map them to regulatory frameworks, ensuring that your final report includes top-priority solutions to prevent penalties and preserve data integrity.

Actionable Insights Beyond Reports

Get a comprehensive report including developer-ready remediation suggestions and proof-of-concept attack scenarios. We rank risks based on business impact (critical authentication issues above low-severity bugs) so you can effectively allocate resources and manage safe deployments.

Cooperative Partnership, Not a One-Time Solution

Apart from testing, we provide retesting and remediation advice to strengthen API endpoints all through the software development lifecycle. Our actions are to limit future attack surfaces so you can keep pace with changing threats that affect enterprise systems.

Testimonials

What Our Clients Say

“Partnering with Astro has been a game-changer for our cybersecurity posture. Their MXDR service is not only highly effective but backed by a team that exemplifies professionalism and urgency. They are always one step ahead, proactively identifying and addressing threats before they become problems.”
Aaron Nadon
Founder, Aidien IT
“Astro went above and beyond during our penetration testing engagement. Their detailed findings and tailored guidance showed they were truly invested in our success. We’ve never worked with a partner as dedicated to our security.”
Joe Stocker
CEO, Patriot Consulting
"Astro couldn't have been a better partner for our penetration test. They provided more than just a report — delivering clear, actionable recommendations to strengthen our cybersecurity. The team was highly responsive, communicative, and met every deadline. We highly recommend them and look forward to working together again."
Blockit Executive
"I couldn't have made a better choice. From their impressive backgrounds to their top-notch work, it's evident that they are dedicated to ensuring the security of their clients' businesses. If you're a business owner in need of cybersecurity solutions, I highly recommend Astro Information Security. Trust me, you need them on your side."
Cynthia Fleming
CEO, SCC MedQR
“What set Astro apart during our red team engagement was their willingness to go above and beyond. They meticulously scoped key deliverables to align with our business needs and worked through the holiday season to meet our timeline. Their professionalism and commitment to being a true strategic partner was extremely evident.”
CIO, Private Equity Company
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Explore Related Security Services

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Web Application Penetration Testing
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Network Penetration Testing
Expose and correct vulnerabilities in your network infrastructure.
questions & answers

Frequently asked questions

What types of vulnerabilities can an API penetration test expose?  

API penetration testing identifies such vulnerabilities as injection faults, broken access controls, or insecure direct object references. Identifying them early enables your teams to fortify security, safeguard valuable information, and uphold trust in your brand.

How often must I conduct API penetration tests?  

Periodic testing is recommended, particularly following significant code releases or feature rollouts. Scheduling general penetration tests at least once a year also allows you to keep pace with changing legislation and market demands.

How is API pen testing different from web application pen testing?  

Both expose security vulnerabilities, but API testing addresses machine-to-machine communications, not user interfaces. API security tests identify such concerns as input validation and gaps in authorization specific to application programming interfaces.

How will testing impact my operations?  

Astro’s security specialists conduct assessments during off-peak hours and in coordination with your team so as not to impact critical workflows. Doing so helps us maintain the integrity of data and critical services operational, while systems are under improvement.

What do I do with the test results?  

A full report describing each vulnerability’s impact and level of danger accompanies your test results. This report will include guidance for fixing found vulnerabilities so you and your security team can work together on such fixes, minimizing cyber risks and strengthening business defenses.