Checkmarx One Assist vs GuardRails: Side-by-Side Comparison (2026)

Checkmarx One Assist: AI-powered AppSec platform with agentic agents for vulnerability prevention & fix. built by Checkmarx. Core capabilities include Real-time vulnerability detection in IDE, AI-powered automated remediation across SAST, SCA, secrets, and IaC, Malicious package detection..

GuardRails: DevSecOps platform for vulnerability detection and developer security training. built by GuardRails. Core capabilities include Automated repository scanning for new and existing code, Support for 22 programming languages, SAST, DAST, SCA, IaC, and secret detection capabilities..

Both serve the Static Application Security Testing market but differ in approach, feature depth, and target audience.

Checkmarx One Assist differentiates with Real-time vulnerability detection in IDE, AI-powered automated remediation across SAST, SCA, secrets, and IaC, Malicious package detection. GuardRails differentiates with Automated repository scanning for new and existing code, Support for 22 programming languages, SAST, DAST, SCA, IaC, and secret detection capabilities.

Checkmarx One Assist is developed by Checkmarx. GuardRails is developed by GuardRails. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Checkmarx One Assist integrates with Azure DevOps. GuardRails integrates with GitHub, GitLab, Bitbucket, Azure DevOps. Check integration compatibility with your existing security stack before deciding.

Checkmarx One Assist and GuardRails serve similar Static Application Security Testing use cases: both are Static Application Security Testing tools, both cover SCA, Secret Detection. Review the feature comparison above to determine which fits your requirements.