Learn the different methods to authenticate with Eloqua's APIs.
HTTP Basic authentication
Basic authentication is a simple authentication scheme built into the HTTP protocol. Valid Eloqua instance credentials are required. This method is not as secure as OAuth 2.0. Learn more.
OAuth 2.0 authentication
OAuth 2.0 enables the safe retrieval of secure resources while protecting user credentials. Some apps may need to authenticate during the configuration phase and others may need OAuth only when a user invokes a service. Learn more.
Eloqua signs all outgoing calls with OAuth 1.0a. App providers should be aware of how Eloqua signs outgoing calls. Learn more.