API Shield
API security, schema validation, mTLS
API Shield protects REST, GraphQL, and gRPC APIs against abuse, attacks, and unauthorized access. The system automatically discovers and catalogs all API endpoints, validates requests against OpenAPI/Swagger schemas, and enforces mutual TLS (mTLS) for critical integrations. Machine learning identifies anomalies in API call patterns, detecting credential stuffing, enumeration, and data exfiltration. Per-endpoint rate limiting protects against abuse and enables API monetization.
Enterprise-grade protection compliant with regulatory requirements and security standards
Fast deployment with minimal resource overhead
Dedicated support from a certified partner
Easy integration with your existing infrastructure
Key features
- Schema validation for OpenAPI 3.0, Swagger 2.0, and GraphQL introspection
- Mutual TLS (mTLS) with automatic certificate management
- API discovery automatically cataloging all endpoints and methods
- Sequence mitigation detecting unusual API call patterns
- GraphQL protection with query depth limiting and cost analysis
Business benefits
- 60% reduction in API attack surface by blocking invalid requests
- Protection against OWASP API Security Top 10 out of the box
- Full visibility into shadow APIs and undocumented endpoints
- Compliance with PCI DSS and SOC 2 standards for API security
- API monetization through granular rate limiting and tier management
Why Cloudflare?
A global security and performance network handling a significant share of the world's internet traffic. Cloudflare offers DDoS protection, WAF, Zero Trust network access, secure DNS, and many other services, protecting applications, APIs, and infrastructure from threats.
Need API Shield in your organization?
As a certified Cloudflare partner, we'll help you deploy and configure the solution.