Best API Security Software in 2026
Updated
In short: 42Crunch API Security Platform is ranked #1 of 28 as of 4 October 2026, ahead of F5 BIG-IP APM and APISec Platform. The best-ranked option with a free plan is APISec Platform. The lowest first paid tier on this page is 42Crunch API Security Platform at $9/mo.
Protecting APIs can involve knowing what is exposed, setting expectations for their design, and monitoring activity as they run. Compare Wallarm API Security, Akto API Security Platform, and 42Crunch API Security Platform on API discovery, posture management, runtime protection, and sensitive data detection. Specification governance adds a view of how API requirements are handled. Deployment model can matter to where a product fits, while free-plan availability and paid-from pricing help you weigh access and cost. The 22 entries are ranked; use that order together with the listed criteria to compare which parts of API security each product addresses.
28 API security software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
#1 42Crunch API Security Platform Top pick · 7.8 Free plan · $9/mo
#2 F5 BIG-IP APM Runner-up · 7.7 
#3 APISec Platform Also great · 7.4 Free plan · $690/mo
- Free planFree trial apiextensionLinuxmacOSself-hostedWebWindows
- Free plan
- No
- API discovery
- Yes
- Runtime protection
- Yes
- API posture management
- Yes
- Sensitive data detection
- Yes
RecognisedDocumentedPlatformsFree planFree trial$9/mofirst paid tier About 42Crunch API Security PlatformVisit site - Free trial AndroidapiiOSLinuxmacOSself-hostedWebWindows
- Free plan
- No
RecognisedDocumentedPlatformsFree planFree trial - Free planFree trial apiextensionLinuxself-hostedWeb
- Free plan
- Yes
- Paid from
- 690 /mo
- API discovery
- Yes
RecognisedDocumentedPlatformsFree planFree trial$690/mofirst paid tier About APISec PlatformVisit site - Free plan apiLinuxself-hostedWeb
- Free plan
- Yes
- API discovery
- Yes
- Runtime protection
- Yes
- API posture management
- Yes
- Sensitive data detection
- Yes
RecognisedDocumentedPlatformsFree planFree trial - apiLinuxself-hostedWeb
- Free plan
- Yes
- API discovery
- Yes
- Runtime protection
- Yes
- API posture management
- Yes
- Sensitive data detection
- Yes
RecognisedDocumentedPlatformsFree planFree trial - apiLinuxWeb
- API discovery
- Yes
- Runtime protection
- Yes
- API posture management
- Yes
- Sensitive data detection
- Yes
RecognisedDocumentedPlatformsFree planFree trial - Free trial apiself-hostedWeb
- API discovery
- Yes
- Runtime protection
- Yes
- API posture management
- Yes
- Sensitive data detection
- Yes
RecognisedDocumentedPlatformsFree planFree trial - Free trial apiself-hostedWeb
- Free plan
- No
- API discovery
- Yes
- Runtime protection
- Yes
- API posture management
- Yes
- Sensitive data detection
- Yes
RecognisedDocumentedPlatformsFree planFree trial - Web
- Free plan
- No
RecognisedDocumentedPlatformsFree planFree trial - apiself-hostedWeb
- API discovery
- Yes
- Runtime protection
- Yes
- API posture management
- Yes
- Sensitive data detection
- Yes
RecognisedDocumentedPlatformsFree planFree trial - apiself-hostedWeb
- Free plan
- No
- API discovery
- Yes
- Runtime protection
- No
- API posture management
- Yes
- Sensitive data detection
- Yes
RecognisedDocumentedPlatformsFree planFree trial - apiWebRecognisedDocumentedPlatformsFree planFree trial
- WebiOSAndroid
- Free plan
- No
- Paid from
- 3,830 /mo
- Runtime protection
- Yes
RecognisedDocumentedPlatformsFree planFree trial - Web
- API discovery
- Yes
- Runtime protection
- Yes
- API posture management
- Yes
- Sensitive data detection
- Yes
RecognisedDocumentedPlatformsFree planFree trial - Web
- Free plan
- No
- Paid from
- 70 /mo
- API discovery
- Yes
- Runtime protection
- No
- API posture management
- Yes
- Sensitive data detection
- Yes
RecognisedDocumentedPlatformsFree planFree trial - Web
- API discovery
- Yes
- Runtime protection
- Yes
- API posture management
- Yes
- Sensitive data detection
- Yes
RecognisedDocumentedPlatformsFree planFree trial - Web
- Free plan
- No
- API discovery
- Yes
- Runtime protection
- Yes
- API posture management
- Yes
- Sensitive data detection
- Yes
RecognisedDocumentedPlatformsFree planFree trial - Web
- API discovery
- No
- Runtime protection
- No
- API posture management
- No
- Sensitive data detection
- No
RecognisedDocumentedPlatformsFree planFree trial -
- Free plan
- Yes
- Paid from
- 9 /mo
- API discovery
- Yes
- Runtime protection
- No
- API posture management
- Yes
- Sensitive data detection
- Yes
RecognisedDocumentedPlatformsFree planFree trial - Web
- Free plan
- Yes
- API discovery
- Yes
- API posture management
- Yes
- Sensitive data detection
- Yes
RecognisedDocumentedPlatformsFree planFree trial - Web
- API discovery
- Yes
- Runtime protection
- Yes
- API posture management
- Yes
- Sensitive data detection
- Yes
RecognisedDocumentedPlatformsFree planFree trial - Web
- API discovery
- Yes
- Runtime protection
- Yes
- API posture management
- Yes
- Sensitive data detection
- Yes
RecognisedDocumentedPlatformsFree planFree trial - Web
- API discovery
- Yes
- Runtime protection
- Yes
- API posture management
- Yes
- Sensitive data detection
- Yes
RecognisedDocumentedPlatformsFree planFree trial - Web
- Free plan
- Yes
- Paid from
- 22 /mo
- API discovery
- Yes
- API posture management
- Yes
RecognisedDocumentedPlatformsFree planFree trial - Web
- API discovery
- Yes
- Runtime protection
- Yes
- API posture management
- Yes
- Sensitive data detection
- Yes
RecognisedDocumentedPlatformsFree planFree trial
Is your tool on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which API security software is ranked first on Specifiction?
42Crunch API Security Platform is ranked #1 of 28 with a score of 7.8. F5 BIG-IP APM is second and APISec Platform third.
How many of these have a free plan?
3 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, 42Crunch API Security Platform has the lowest first paid tier we found: $9/mo.
How is this list ranked?
Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing. Paid placements never change a rank.