42Crunch API Security Platform vs WuppieFuzz
42Crunch API Security Platform
42crunch.comWuppieFuzz
github.comSide by side
| Figure | 42Crunch API Security Platform | WuppieFuzz |
|---|---|---|
| Price from | $9/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | Yes |
| Web | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 10 | 2 |
| Spec score · API Security Testing Software | 9.5 (#1) | 8.2 (#8) |
| Notable limitation | The CI/CD documentation says GraphQL federation is not supported in CI/CD integration, and the Jenkins instructions state GraphQL scanning requires a separate subscription. | The README says code coverage reporting is currently supported only for JaCoCo. |
| Notable news | 42Crunch announced an API Contract Generator for developer IDEs on January 19, 2026. | TNO announced its new REST API fuzzer on 15 October 2024 and presented it as easier to configure and interpret through a dashboard. |
| Privacy | The company says it commits to applicable privacy laws including GDPR, CCPA, UK GDPR, and Australia's APPs. | TNO states that fuzzing data is not shared with TNO or third parties. |
| Purpose | 42Crunch provides API security testing and runtime protection and extends its contract-driven governance to MCP servers used by AI agents. | WuppieFuzz is a coverage-guided REST API fuzzer built on LibAFL to find potential errors and security flaws. |
| Support | The Individual plan includes email support, Individual Pro includes community support, and enterprise pricing includes a dedicated support manager. | TNO invites users to contact it for help, ideas, or information about automated reliability and security testing tools. |
| What it does | 42Crunch is a SaaS API-security platform covering definition auditing, live API scanning, runtime protection and monitoring. | WuppieFuzz is a coverage-guided REST API fuzzer built on LibAFL. |
Plans
42Crunch API Security Platform
- FreeFree
- StarterFree
- Individual$9 a month
- Individual$9 a month
- Individual Pro$20 a month
- Individual Pro$20 a month
- Team 10$349 a month
- Team 25$599 a month
- EnterprisePriced on request
- Enterprise API Security PlatformPriced on request
In their own words
42Crunch API Security Platform
42Crunch API Security Platform has no write-up on Specifiction yet; its figures are above.
WuppieFuzz
WuppieFuzz is a free, open-source, self-hosted REST API fuzzer built on LibAFL. It generates and mutates requests from an OpenAPI specification to seek potential errors and security flaws. Black-box, grey-box, and white-box testing are supported, along with authentication and input-validation testing. Authentication formats include Bearer, custom, cookie, OAuth, and Web Fuzzing Commons. Code coverage is supported for Java, JavaScript, and Python, while code coverage reports currently support JaCoCo. The tool can produce endpoint coverage reports, and a Grafana dashboard can visualize request information from a fuzzing campaign. It runs on Windows, macOS, and Linux and uses the Apache 2.0 license. TNO says fuzzing data is not shared with TNO or third parties. The tool is described for software development, supply-chain quality control, or penetration testing. WuppieFuzz requires an OpenAPI document in JSON or YAML to generate requests, and API discovery is not supported. Its plan costs nothing.