B2B portals and partner APIs do the heavy lifting. Data exchange. Account management. Workflow automation. Every integration adds risk. Broken access controls, exposed endpoints, vulnerabilities that let users access other partners’ data — all too common.

AI pentesting helps here. These tools spot weaknesses by automating application testing and tracing attack paths. Some platforms handle continuous testing, validate vulnerabilities, and help devs fix problems before production.

Your pick depends on app complexity, API architecture, and security requirements. Here are four AI pentesting and application security tools worth considering for B2B portals and partner APIs.

Key Security Risks in B2B Portals and Partner APIs

B2B applications carry risks that go past your standard vulnerability list. Weak access controls mean one partner can see another company’s records. Poorly secured API endpoints expose sensitive business data. And workflow logic? Attackers exploit it to do things they aren’t authorized to do. Or they stitch together a few minor weaknesses and land somewhere restricted.

AI pentesting tools help find this. They probe application behavior, access permissions, and attack paths. How much they actually catch depends on the platform’s capabilities and how it’s configured. Depth varies wildly.

Best AI Pentesting Tools

AI pentesting tools each bring something different. Some run autonomous tests. Others work inside your dev pipeline. A few combine testing with broader app security. They also vary in how they handle authenticated APIs and attack path validation.

That range is useful for B2B portals, where authorization controls, partner data isolation, and business logic all need attention. The tools below each take their own approach.

1. Aikido

Best for: Teams looking to combine AI pentesting with application security and automated remediation.

Aikido combines AI-powered penetration testing with code, cloud, and runtime security in one platform. For B2B portals and partner APIs, its testing should be evaluated against authorization boundaries between suppliers, customers, and administrators, where incorrect permissions can expose sensitive business data or allow unauthorized actions.

Relevant evaluation scenarios include checking whether users can access another partner’s documents, whether account permissions are correctly enforced, and whether partner API workflows prevent unauthorized operations. Validated exploit evidence is an important criterion for assessing findings, helping security teams distinguish demonstrated vulnerabilities from potential risks.

Beyond penetration testing, Aikido provides application security capabilities including DAST, API scanning, attack surface discovery, SAST, software composition analysis (SCA), secrets detection, and AI code auditing. These help teams determine where a security issue originates — a running application, source code, an outdated dependency, or an exposed credential. 

Remediation is also part of the platform. AI agents are designed to identify vulnerabilities, generate fixes, and verify changes through testing workflows. This supports development and security teams in getting from discovery to resolution.

Key capabilities:

• AI-powered and continuous penetration testing
• Testing of API security and authorization weaknesses
• DAST and attack surface discovery
• SAST, dependency analysis, and secrets detection
• AI-assisted remediation and verification

2. Novee

Best for: Teams that need continuous AI-powered testing of business logic and API security.

Novee is an AI-powered pentesting platform. It finds vulnerabilities in web apps, APIs, mobile apps, and external attack surfaces — AI agents explore, test attack paths, and validate weaknesses.

For B2B portals and partner APIs, it exposes authorization gaps, cross-tenant access, and workflow flaws. The Asset Intelligence Model maps roles, permissions, APIs, and workflows so testing stays context-aware.

Findings come with reproducible proof-of-concept scripts, exploitation steps, and remediation guidance. Novee also handles automated retesting and black-box, gray-box, and white-box assessments.

Key capabilities:

• Continuous AI-powered penetration testing
• Business logic and authorization testing
• Cross-tenant vulnerability discovery
• Black-box, gray-box, and white-box testing
• Reproducible findings and automated retesting

3. XBOW

Best for: Organizations that need autonomous penetration testing across multiple web applications and APIs.

XBOW uses multi-agent AI to explore web applications, investigate attack vectors, and validate potential vulnerabilities. Its approach automates key testing stages, from application discovery to exploitation and evidence collection.

For B2B portals and partner APIs, XBOW can help teams assess large application environments more efficiently. It accepts live target URLs and can also use credentials, source code, and API specifications to support different testing scenarios.

The platform includes testing controls such as rate limiting to help manage operational risks. Teams should evaluate its coverage of authenticated endpoints, partner permissions, and complex business logic.

Key capabilities:

• Autonomous, multi-agent penetration testing
• Automated application and endpoint discovery
• Exploitation and proof-of-concept generation
• Authenticated testing and API specification support
• Configurable testing safeguards

4. StackHawk

Best for: Development teams integrating API security testing into CI/CD pipelines.

StackHawk is a DAST platform — dynamic application security testing — and it’s built for developers first. It finds vulnerabilities in running applications and APIs, then weaves security scans into development workflows. The goal: catch issues before releases reach production.

For B2B portals and partner APIs, StackHawk supports API discovery and testing. That covers common vulnerabilities and authorization weaknesses, including broken object-level authorization (BOLA) and broken function-level authorization (BFLA). Depending on the test configuration, of course.

It also integrates with AI coding assistants. Developers can investigate findings, make code changes, and rescan applications to check that fixes hold up.

Key capabilities:

• Dynamic application and API security testing
• CI/CD pipeline integration
• API discovery and OpenAPI specification support
• BOLA and BFLA testing
• AI coding assistant integrations
• Automated rescanning to verify fixes

Conclusion

AI pentesting tools strengthen B2B portals and partner APIs in different ways. Aikido combines offensive testing with wider app security and remediation workflows. Novee focuses on continuous AI-driven vulnerability discovery. XBOW leans into autonomous testing at scale. StackHawk brings runtime checks into the development pipeline.

The right pick comes down to your priorities, your architecture, and your testing needs. Test each platform against real API workflows and partner access scenarios. See which one actually covers your environment.

 

Author Bio: Willem Delbare is the Co-Founder, CTO, and CEO of Aikido Security, a cybersecurity company developing tools to help organizations identify and address software vulnerabilities. With a background in computer science and SaaS entrepreneurship, he focuses on making application security more accessible to developers through an integrated platform.