#### Mechanism Handlers List

The Mechanism Handler List attribute stores information about the SASL mechanisms supported by the Authentication Web Service. It displays entries that contain key/value pairs separated by a pipe as in: `key=PLAIN|class=com.sun.identity.liberty.ws.authnsvc.mechanism.PlainMechanismHandler`. The parameters are explained in the following table.

Parameter | Value
--- | ---
`key` | The required `key` parameter defines the SASL mechanism supported by the Authentication Web Service.
`class` | The required `class` parameter specifies the name of the implementation class for the SASL mechanism. The Authentication Web Service layer provides a handler interface that needs to be implemented in order for each SASL mechanism to process the requested message and return a response.

To add a new Request Handler click Add, and see To Configure a New Mechanism Handler.