42Crunch provides API security testing and runtime protection, and applies contract-driven governance to MCP servers used by AI agents.
Alternatives to OWASP API Security Testing Framework
APISec Platform is an AI-based application security platform for validating exploits against APIs and applications.
WuppieFuzz is a free, open-source REST API fuzzer built on LibAFL to look for potential errors and security flaws.
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Beagle Security
Beagle Security is an agentic AI penetration testing platform for web applications, APIs, and GraphQL.
Free planWebAPI6.9From $99 a month - 5
StackHawk HawkScan
StackHawk HawkScan is a dynamic application security testing scanner for web applications and APIs.
WebAPILinuxmacOS6.8From $10 a month - 6
AquilaX API Security Scanner
AquilaX API Security Scanner checks APIs by analyzing their specifications and probing running endpoints.
Free planWebAPIExtensionSelf-hosted6.7From $19 a month - 7

Parasoft SOAtest
Parasoft SOAtest automates functional, security, and performance testing for APIs and microservices.
AndroidiOSAPILinux6.7 - 8
ZeroThreat
ZeroThreat is an AI-powered penetration-testing platform for web applications and APIs, available through web and API access.
Free planWebAPI6.7From $100 a month - 9

Indusface WAS
Indusface WAS is a cloud-based web application security scanner using dynamic application security testing to identify vulnerabilities.
Web6.6From $599 a year - 10

Bright Security DAST
Bright Security DAST is a dynamic application security testing tool offered as SaaS.
WebAPILinuxmacOS6.5 - 11
Pentest-Tools.com API Scanner
Pentest-Tools.com API Scanner is a cloud tool for assessing APIs and detecting vulnerabilities such as SQL injection, SSRF, local file inclusion,…
WebAPILinuxmacOS6.5From $95 a month - 12
PurpleTeam
PurpleTeam is a command-line tool and service for dynamic application security testing of web applications and APIs.
Free planAPISelf-hosted6.4From $85 a month - 13
Schemathesis
Schemathesis generates property-based tests from OpenAPI and GraphQL schemas to help engineers find API bugs.
Free planLinuxmacOSSelf-hostedWindows6.4Free plan - 14

ApyGuard API Security Scanner
ApyGuard API Security Scanner checks authenticated APIs before release for authorization problems, OWASP API Security Top 10 risks, and business-logic issues.
WebExtensionSelf-hosted6.2From $129 a month - 15
Automatic API Attack Tool
Automatic API Attack Tool is a free, open-source tool that generates and runs tests from an API specification.
Free planLinuxWindows6.2Free plan - 16
Pentestas API Scanner
Pentestas API Scanner examines live APIs, Swagger or OpenAPI specifications, and JWT claims for security weaknesses.
WebAPI6.2From $948 a year - 17

Pynt
Pynt tests API security by examining API traffic and creating simulated attacks to find vulnerabilities.
Free planWebAPILinuxSelf-hosted6.1Free plan - 18

Akto API Security Platform
WebAPILinuxSelf-hosted6.0 - 19

Equixly
Equixly is a paid API and application security platform that uses AI agents to discover, attack, and validate exploitable risks in running systems.
WebAPI6.0€4,999 one-time - 20
VulnAPI
VulnAPI is a free, open-source dynamic application security testing tool for scanning APIs for vulnerabilities and security risks.
Free planLinuxmacOSSelf-hostedWindows6.0Free plan - 21
5.7 - 22

Escape
Escape is an offensive security platform that brings together attack surface management, business-logic-aware dynamic application security testing…
WebAPI5.5 - 23

Operator
Operator is an autonomous API penetration testing agent that parses an OpenAPI or Swagger specification, enumerates documented operations, and tests them.
Web5.5 - 24
GraphQL-Cop
GraphQL-Cop is a free Python utility for checking GraphQL APIs for common security issues, including as part of CI/CD checks.
LinuxmacOSSelf-hostedWindows5.4 - 25
RapiFuzz APIFuzzer
RapiFuzz APIFuzzer is a self-hosted API security tool that sends invalid or unexpected data to API endpoints to uncover vulnerabilities and suggest mitigation.
Self-hosted5.4 - 26
RESTler
LinuxmacOSWindows4.9
