17.9
42Crunch provides API security testing and runtime protection, and applies contract-driven governance to MCP servers used by AI agents.
Free planWebAPIExtension
Best API Security Testing Software in 2026
API security testing software varies in the risks it examines and the ways it can be deployed. Compare API discovery and supported API formats with authentication and authorization testing; business-logic and input-validation testing are further coverage points to weigh. Deployment options, free-plan availability and paid-from pricing help frame setup and access. 42Crunch API Security Platform, APISec Platform and…
27.5
APISec Platform is an AI-based application security platform for validating exploits against APIs and applications.
Free planWebAPIExtension
37.3
WuppieFuzz is a free, open-source REST API fuzzer built on LibAFL to look for potential errors and security flaws.
Free planOpen sourceAPILinuxmacOS
- 4
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