Compliance Assessment Tool API alternatives
PCI DSS self-assessment for merchants: picks the SAQ type, returns filled SAQ + AoC PDFs. If it doesn't fit your project, here are the 10 best free Security APIs to use instead in 2026, out of 65 in the directory.
For reference, Compliance Assessment Tool API: Callable from the browser (CORS) · HTTPS.
- 1
DefenceLevel Index API
Online · 1080 msDaily cyber threat level (DEFCON 5 to 1) with open method, history in JSON/CSV and a badge.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 2
IPLogs API
Online · 1003 msFree VPN, proxy, Tor and datacenter IP detection. 13 sources, active probing.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 3

OSV API
Online · 455 msOpen source vulnerability database and distributed triage infrastructure.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 4

Passwordinator API
Online · 406 msGenerate random passwords of varying complexities.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 5

Presend API
Online · 529 msSecurity and developer utility API -- malware, vulnerability, and domain checks, no signup.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 6
IPGuardian API
Online · 1734 msCheck IP addresses against 140+ public threat intelligence blocklists.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 7
LoginRadius API
Online · 1078 msComprehensive documentation for integrating LoginRadius authentication, user management, and identity solutions.
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
apiKeyHTTPSCORS - 8
Maskbreak API
Online · 1054 msDetect VPNs, proxies, Tor, bots and antidetect browsers at signup, login and checkout.
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
apiKeyHTTPSCORS - 9

Sealed Rose API
Online · 612 msAI media forensics and synthetic content verification for video, audio, image, and text.
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
apiKeyHTTPSCORS - 10

SSL Labs API
Online · 310 msDeep SSL/TLS server analysis with A+ to F grading.
- No API key needed
- 100% uptime (30 days)
- Fast: 310 ms response
- HTTPS
No authHTTPSCORS ?
Compliance Assessment Tool API vs alternatives
| API | API key | HTTPS | CORS | Uptime | Response | Rating |
|---|---|---|---|---|---|---|
| Required | Yes | Yes | Up | 2000 ms | Not rated | |
| No | Yes | Yes | 100% | 1080 ms | Not rated | |
| No | Yes | Yes | 100% | 1003 ms | Not rated | |
| No | Yes | Yes | 100% | 455 ms | Not rated | |
| No | Yes | Yes | 100% | 406 ms | Not rated | |
| No | Yes | Yes | 100% | 529 ms | Not rated | |
| No | Yes | Yes | 100% | 1734 ms | Not rated | |
| Required | Yes | Yes | 100% | 1078 ms | Not rated | |
| Required | Yes | Yes | 100% | 1054 ms | Not rated |
See also: best Security APIs · all Security APIs
Compliance Assessment Tool API alternatives FAQ
What is the best free alternative to the Compliance Assessment Tool API in 2026?
The top-ranked free alternatives to the Compliance Assessment Tool API are DefenceLevel Index API, IPLogs API and OSV API, all in the Security category. Rankings combine access (API key, HTTPS, CORS), daily uptime checks and developer ratings.
Is there a Compliance Assessment Tool API alternative that doesn't need an API key?
Yes: DefenceLevel Index API, IPLogs API and OSV API work without an API key, unlike the Compliance Assessment Tool API, which uses apiKey authentication.
How many Security APIs are similar to the Compliance Assessment Tool API?
The directory lists 57 other free Security APIs. This page compares the top ones side by side.