Fastly API Security vs Impart WAF: Side-by-Side Comparison (2026)

Fastly API Security: API security platform for discovery, monitoring, and protection at edge. built by Fastly. Core capabilities include Automatic API discovery at edge network, Detection of new and unintentional API calls, Integration with Next-Gen WAF for API traffic protection..

Impart WAF: Modern WAF with code-based rules and developer-focused workflow integration. built by Impart Security. Core capabilities include OWASP Top 10 threat detection including SQL injection and XSS, Account takeover detection for credential stuffing and password spraying, Attribute-based blocking by API token, authorization header, or session cookie..

Both serve the API Security market but differ in approach, feature depth, and target audience.

Fastly API Security differentiates with Automatic API discovery at edge network, Detection of new and unintentional API calls, Integration with Next-Gen WAF for API traffic protection. Impart WAF differentiates with OWASP Top 10 threat detection including SQL injection and XSS, Account takeover detection for credential stuffing and password spraying, Attribute-based blocking by API token, authorization header, or session cookie.

Fastly API Security is developed by Fastly. Impart WAF is developed by Impart Security. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Fastly API Security and Impart WAF serve similar API Security use cases: both are API Security tools, both cover WAF. Review the feature comparison above to determine which fits your requirements.