# Qualys Authentication API

**Canonical:** https://apis.io/apis/qualys/authentication-api/  
**Provider:** Qualys — https://apis.io/providers/qualys/  
**Base URL:** https://gateway.qg1.apps.qualys.com  
**Documentation:** https://docs.qualys.com/en/vmdr-ot/api/vmdrot_api/ch01/get_started.htm

Qualys Authentication API is one of 2 APIs that [Qualys](https://apis.io/providers/qualys/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Authentication, JWT, and Identity. The published artifact set on APIs.io includes API documentation.

Authentication endpoint that issues JSON Web Tokens (JWT) used as Bearer credentials for newer Qualys APIs (VMDR OT, CSAM, TotalCloud). Clients post username and password to /auth and pass the returned token in the Authorization header on subsequent requests.

## Machine-readable artifacts (1)

- **Documentation** — https://docs.qualys.com/en/vmdr-ot/api/vmdrot_api/ch01/get_started.htm

## Other Qualys APIs (1)

- [Qualys VMDR API](https://apis.io/apis/qualys/vmdr-api/)

## Tags

Authentication, JWT, Identity

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/qualys/authentication-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/qualys/.