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42Crunch is the only API security platform that proactively tests, fixes, and protects APIs from vulnerabilities throughout the entire development lifecycle, embedding security at design time, enforcing it through CI/CD, and protecting every API at runtime with a specification-driven micro-firewall that virtually eliminates false positives.
Analyses OpenAPI contract definitions for security vulnerabilities and conformance to the OpenAPI Specification, providing each API with an instant security score from 0 to 100 and delivering prioritised, actionable remediation guidance directly in the developer's IDE before a single line of code is written.
Performs automated dynamic testing of live API endpoints against their OpenAPI contract, identifying vulnerabilities including all OWASP API Top 10 risks in running APIs, integrated directly into CI/CD pipelines to ensure insecure APIs are caught and blocked before they reach production.
A runtime API firewall that uses each API's own OpenAPI contract as the policy definition, automatically enforcing a positive security model that permits only the behaviour explicitly defined in the specification and blocks everything else, with virtually zero false positives and no AI training period required.
Automatically discovers APIs across the environment and generates OpenAPI contracts from live traffic, eliminating the shadow API blind spot and ensuring that every API, including undocumented and legacy endpoints, is brought into the security governance programme without manual effort.
42Crunch is a purpose-built API security company trusted by Fortune 500 organisations and used by over two million developers globally. Unlike general application security tools that treat APIs as one of many targets, 42Crunch was built exclusively for API security from the ground up, covering the full lifecycle from contract design through development, CI/CD testing, and runtime protection in a single unified platform. Its approach centres on the OpenAPI Specification as the foundation of a positive security model, where every API's own contract defines exactly what behaviour is permitted and everything else is blocked by default. The platform integrates natively into IDEs, code repositories, CI/CD pipelines, API gateways, SIEMs, and runtime containers, making security a continuous, automated part of the development process rather than a gate at the end of it. 42Crunch also extends its platform into agentic AI security, providing auditable execution trails and compliance alignment for organisations deploying AI agents that interact with APIs.
