Best API Security Testing Software in 2026
Updated
In short: 42Crunch API Security Platform is ranked #1 of 27 as of 4 October 2026, ahead of APISec Platform and Pynt. The best-ranked option with a free plan is APISec Platform. The lowest first paid tier on this page is Pentestas API Scanner at $6.58/mo.
Assessing API security calls for comparing both testing coverage and deployment. These entries are compared on API discovery, supported API formats, authentication and authorization testing, business-logic testing, and input validation. Free-plan availability and paid-from pricing provide additional points for evaluating access and cost. Levo.ai, Pynt, and Akto API Security Platform lead the displayed entries, followed by Operator and APISec Platform. Use the criteria to identify which stated testing areas and deployment details matter for the APIs and setup you need to assess.
27 API security testing software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
8 of the 25 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 1 | 42Crunch API Security PlatformWeb · Windows · Mac · Linux · Self-hosted · API · Extension | Three bars | — | 4 of 6 | $9/mo | 6.6 | |
| 2 | APISec PlatformWeb · Linux · Self-hosted · API · Extension | Two bars | — | 2 of 6 | $690/mo | 6.5 | |
| 3 | PyntWeb · Linux · Self-hosted · API | Two bars | — | 2 of 6 | Free | 6.5 | |
| 4 | SchemathesisWindows · Mac · Linux · Self-hosted | Three bars | — | 3 of 6 | Free | 6.5 | |
| 5 | VulnAPIWindows · Mac · Linux · Self-hosted | Three bars | — | 3 of 6 | Free | 6.5 | |
| 6 | AquilaX API Security ScannerWeb · Self-hosted · API · Extension | Two bars | — | 1 of 6 | $19/mo | 6.4 | |
| 7 | Beagle SecurityWeb · API | Two bars | — | 1 of 6 | $99/mo | 6.4 | |
| 8 | ZeroThreatWeb · API | Two bars | — | 1 of 6 | $100/mo | 6.4 | |
| 9 | Bright Security DASTWeb · Windows · Mac · Linux · Self-hosted · API | Two bars | — | — | 4 of 6 | — | 5.7 |
| 10 | Levo.aiWeb · Windows · Mac · Linux · Self-hosted · API · Extension | Two bars | — | — | 4 of 6 | — | 5.7 |
| 11 | Parasoft SOAtestWindows · Mac · Linux · Android · iPhone · Self-hosted · API | Two bars | — | — | 5 of 6 | — | 5.7 |
| 12 | Pentest-Tools.com API ScannerWeb · Mac · Linux · API | Two bars | — | — | 3 of 6 | $95/mo | 5.6 |
| 13 | Akto API Security PlatformWeb · Linux · Self-hosted · API | One bar | — | — | 2 of 6 | — | 5.5 |
| 14 | ApyGuard API Security ScannerWeb · Self-hosted · Extension | One bar | — | — | 1 of 6 | $129/mo | 5.5 |
| 15 | OperatorWeb | One bar | — | — | 1 of 6 | — | 5.5 |
| 16 | Pentestas API ScannerWeb · API | One bar | — | — | 1 of 6 | $6.58/mo | 5.5 |
| 17 | EscapeWeb · API | One bar | — | — | 1 of 6 | — | 5.4 |
| 18 | GraphQL-CopWindows · Mac · Linux | Two bars | — | — | 3 of 6 | — | 5.4 |
| 19 | OWASP AmassWindows · Mac · Linux | Two bars | — | — | 3 of 6 | — | 5.4 |
| 20 | Automatic API Attack ToolWindows · Linux | No signal | — | — | 2 of 6 | — | 5.3 |
| 21 | WuppieFuzzWindows · Mac · Linux | One bar | — | — | 3 of 6 | — | 5.3 |
| 22 | RapiFuzz APIFuzzerNo platforms listed | One bar | — | — | 0 of 6 | — | 5.2 |
| 23 | RESTlerWindows · Mac · Linux | One bar | — | — | 3 of 6 | — | 5.2 |
| 24 | StackHawk HawkScanWeb · Windows · Mac · Linux | One bar | — | — | 4 of 6 | — | 5.2 |
| 25 | PurpleTeamNo platforms listed | No signal | — | — | 0 of 6 | — | 5.1 |
Is your app 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 testing software is ranked first on Freedom251?
42Crunch API Security Platform is ranked #1 of 27 with a score of 6.6. APISec Platform is second and Pynt third.
How many of these have a free plan?
8 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Pentestas API Scanner has the lowest first paid tier we found: $6.58/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation. Paid placements never change a rank.