# Nextiva Provider Authentication API

**Canonical:** https://apis.io/apis/nextiva/provider-authentication/  
**Provider:** Nextiva — https://apis.io/providers/nextiva/  
**Base URL:** https://api.nextiva.com  
**Documentation:** https://developer.nextiva.com/nextiva/reference/generatetokenwithauthorities

Nextiva Provider Authentication API is one of 5 APIs that [Nextiva](https://apis.io/providers/nextiva/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Authentication, Tokens, and Security. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

Login and token refresh for the Nextiva Contact Center platform. Basic authentication generates a JWT bearer token carrying the user's authorities; the token-refresh operation exchanges an existing bearer token for a new one. Every other Nextiva API requires the token this API issues.

## Machine-readable artifacts (4)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/nextiva/refs/heads/main/openapi/nextiva-authentication-openapi.yml
- **Overlay** — https://raw.githubusercontent.com/api-evangelist/nextiva/refs/heads/main/overlays/nextiva-authentication-overlay.yaml
- **Documentation** — https://developer.nextiva.com/nextiva/docs/authentication
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/nextiva/refs/heads/main/apis.yml

## Other Nextiva APIs (4)

- [Nextiva Provider Token Service API](https://apis.io/apis/nextiva/provider-token-service/)
- [Nextiva Workitem Service API](https://apis.io/apis/nextiva/workitem-service/)
- [Nextiva Conversation API](https://apis.io/apis/nextiva/conversation/)
- [Nextiva SMS Messaging API](https://apis.io/apis/nextiva/sms-messaging/)

## Tags

Authentication, Tokens, Security

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