# 42Crunch API Protection

42Crunch API Protection is an API Security product by 42Crunch. It runs in the cloud or on-premises (hybrid). Pricing is commercial (contact sales).

API runtime protection with content validation, threat detection & throttling

Listed January 2026.

## What is 42Crunch API Protection?

42Crunch API Protection provides runtime security for APIs through a micro-firewall approach that enforces security policies based on OpenAPI contracts. The platform combines shift-left security testing during design and development with shield-right runtime protection throughout the API lifecycle.

The solution automatically enforces content validation by deploying directly from CI/CD pipelines and reconfigures when OpenAPI contracts change. It uses a positive security model based on data conformance to OpenAPI specifications to distinguish legitimate API traffic from malicious attacks.

The platform detects OWASP API Security Top 10 issues including data leakage, overflows, mass assignment, broken authentication, and security misconfigurations. It identifies vulnerabilities triggered by wrong HTTP verbs, incorrect paths, wrong content types, improper data formats, violations of API constraints, and data injection attempts.

Traffic throttling capabilities actively prevent Denial of Service and brute-force attacks based on configurable criteria. In microservice deployments, API Protection is deployed separately with each microservice instance, enabling per-instance rate limiting enforcement.

The solution integrates with IDE, CI/CD pipelines, API gateways, runtime containers, and SIEM systems to provide comprehensive API security coverage from design through runtime.

Tags: OWASP, Traffic Filtering, WAF

## Where it fits in your security program (NIST CSF 2.0)

- [Protect](https://cybersectools.com/guides/building-protect-program-small-team): helps you prevent attacks and keep data safe.
- [Detect](https://cybersectools.com/guides/building-detect-program-small-team): helps you spot attacks and unusual activity.

## Quick facts

- Category: [Application Security](https://cybersectools.com/categories/application-security) · [API Security](https://cybersectools.com/categories/api-security)
- Vendor: [42Crunch](https://cybersectools.com/companies/42crunch)
- Deployment: Hybrid
- Company size fit: SMB, Mid-Market, Enterprise
- Pricing model: Commercial (contact sales)
- Features: 10 listed
- Integrations: 5 listed
- Website: 42crunch.com

The full feature and integration lists are on the page for signed-in visitors.

## Where it ranks

42Crunch API Protection is not a pick on the current [Best API Security Solutions for Business](https://cybersectools.com/shortlists/best-api-security-solutions).

## 42Crunch API Protection FAQ

### What is 42Crunch API Protection?

42Crunch API Protection is a product by 42Crunch in the API Security category. It covers OWASP, Traffic Filtering and WAF.

### What is the pricing for 42Crunch API Protection?

42Crunch API Protection is a commercial product. For pricing, visit https://42crunch.com/api-protection/ or contact 42Crunch.

### What are alternatives to 42Crunch API Protection?

Alternatives to 42Crunch API Protection listed on CybersecTools:

1. [Ammune API Discovery](https://cybersectools.com/tools/ammune-api-discovery) - API security platform with discovery, WAF, bot protection, and DDoS defense (Commercial)
2. [Imperva API Security](https://cybersectools.com/tools/imperva-api-security) - Unified API security platform for discovery, risk assessment, and mitigation (Commercial)
3. [Impart AI](https://cybersectools.com/tools/impart-ai) - AI-powered runtime protection platform for WAF, API, and AI security (Commercial)
4. [Operant AI API Threat Protection](https://cybersectools.com/tools/operant-ai-api-threat-protection) - Runtime API threat protection for Kubernetes environments with discovery (Commercial)
5. [Indusface AppTrana - API Protection](https://cybersectools.com/tools/indusface-apptrana-api-protection) - Managed API security platform with discovery, DAST, WAF, and 24x7 SOC (Commercial)

Compare all 42Crunch API Protection alternatives at [https://cybersectools.com/alternatives/42crunch-api-protection](https://cybersectools.com/alternatives/42crunch-api-protection)

### What deployment and organization size does 42Crunch API Protection fit?

42Crunch API Protection is available as cloud or on-premises (hybrid). It is listed for small businesses, mid-market companies and enterprises. Pricing is commercial. Ask 42Crunch for pricing and support terms.

## Compare 42Crunch API Protection with similar solutions

- [42Crunch API Protection vs Ammune API Discovery](https://cybersectools.com/compare/42crunch-api-protection-vs-ammune-api-discovery)
- [42Crunch API Protection vs Imperva API Security](https://cybersectools.com/compare/42crunch-api-protection-vs-imperva-api-security)
- [42Crunch API Protection vs Impart AI](https://cybersectools.com/compare/42crunch-api-protection-vs-impart-ai)

All alternatives to 42Crunch API Protection: [/alternatives/42crunch-api-protection](https://cybersectools.com/alternatives/42crunch-api-protection)

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Source: https://cybersectools.com/tools/42crunch-api-protection

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More on 42Crunch API Protection and 42Crunch: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=product-md