public apis
/
CategoriesMCPBlogRandomStar491.6K
Public APIs

A searchable directory of 2,000+ free public APIs, curated by the community and maintained with APILayer.

Powered byAPILayer

Popular

  • Weather APIs
  • Finance APIs
  • Crypto APIs
  • Geocoding APIs
  • Machine learning APIs
  • Games APIs

Directory

  • Categories
  • All APIs
  • MCP servers
  • FAQ
  • Stats
  • JSON API
  • llms.txt

APILayer

  • Browse the API suite ↗
  • Get a free API key ↗
  • APILayer blog ↗
  • Postman collection ↗
  • Discord community ↗

Project

  • public-apis on GitHub ↗
  • Contribute an API ↗
Public APIs · by APILayerData from public-apis (MIT)
  1. Home
  2. /Categories
  3. /Authentication & Authorization

Free Authentication & Authorization APIs

7 free public Authentication & Authorization APIs for developers. 7 support HTTPS, 4 allow CORS from the browser and 0 need no API key.

APILayerOne account · one API key
Get API key→

Showing 7 of 7 APIs

Auth0 logo

Auth0

Easy to implement, adaptable authentication and authorization platform

apiKeyHTTPSCORS
GetOTP logo

GetOTP

Implement OTP flow quickly

apiKeyHTTPSNo CORS
Micro User Service logo

Micro User Service

User management and authentication

apiKeyHTTPSNo CORS
MojoAuth logo

MojoAuth

Secure and modern passwordless authentication platform

apiKeyHTTPSCORS
S

SAWO Labs

Simplify login and improve user experience by integrating passwordless authentication in your app

apiKeyHTTPSCORS
Stytch logo

Stytch

User infrastructure for modern applications

apiKeyHTTPSNo CORS
W

Warrant

APIs for authorization and access control

apiKeyHTTPSCORS

Authentication & Authorization API FAQ

How many free Authentication & Authorization APIs are there?

There are 7 free public Authentication & Authorization APIs in the directory. 7 support HTTPS, 4 are confirmed to allow CORS and 0 need no API key.

Which Authentication & Authorization APIs can I call from the browser?

APIs with CORS enabled can be called directly from front-end JavaScript. In Authentication & Authorization, that includes Auth0, MojoAuth, SAWO Labs and Warrant.