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Amazon Lex
Developer Guide

Built-in Slot Types

Amazon Lex supports built-in slot types from the Alexa Skills Kit. You can create slots of these types in your intents. They eliminate the need to create enumeration values for commonly used slot data such as date, time, and location. Built-in slot types do not have versions.

For a list of available built-in slot types, see Slot Type Reference in the Alexa Skills Kit documentation.

Note

Amazon Lex doesn't support the AMAZON.LITERAL built-in slot type.

The following additional slot types are supported by Amazon Lex.

Slot Type Short Description Supported Languages Availability
AMAZON.EmailAddress Converts words that represent an email address into a standard email address. English (US) Developer Preview
AMAZON.Percentage Converts words that represent a percentage to a number and a percent sign (%). English (US) Developer Preview
AMAZON.PhoneNumber Converts words that represent a phone number into a numeric string. English (US) Developer Preview
AMAZON.SpeedUnit Converts words that represent a speed unit into a standard abbreviation. English (US) Developer Preview
AMAZON.WeightUnit Converts words that represent weight units into a standard abbreviation. English (US) Developer Preview

The following slot types have special considerations when used with Amazon Lex.

Slot Type Short Description Supported Languages Availability
AMAZON.NUMBER Converts numeric words into digits. English (US) Developer Preview
AMAZON.TIME Converts words that indicate times into a time format. English (US) Available