Free Tools

Free API security tools — no platform sign-up required.

Run the same audit and scan engines behind the 42Crunch platform against a single OpenAPI definition, free.

No sign-up required

Three tools, free to run today

The same audit and scan engines that power the platform, available standalone for a single API definition.

OpenAPI (Swagger) Editor

Create and edit OpenAPI design files with Intellisense, a live “Try it” tester against real endpoints, and instant Preview.

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API Audit

Static analysis of your API definition. Checks the quality and security of the contract and returns an instant score with remediation guidance.

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API Scan

Dynamic testing against a running API. Tests for conformance to the definition and for OWASP API Top 10 vulnerabilities such as BOLA.

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Ready to run these across your whole API estate?