---
title: Token-based authentication
description: Token-based authentication for inbound REST APIs configuration using API Key or HMAC.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/platform-security/authentication/token-based-auth-api.html
release: brazil
product: Authentication
classification: authentication
topic_type: concept
last_updated: "2026-09-10"
reading_time_minutes: 1
breadcrumb: [API authentication, Authentication, Access Management]
---

# Token-based authentication

Token-based authentication for inbound REST APIs configuration using API Key or HMAC.

Support API tokens for REST API end points so that the ServiceNow can authenticate users.

Token-based authentication for inbound REST APIs configuration can be performed on the ServiceNow instance with the [API Key or HMAC token](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/platform-security/authentication/api-key-and-hmac-rest-apis.md).