API Reference > itwin-client > Authentication > IncludePrefix IncludePrefix Enumeration Beta Option to specify if the prefix identifying the token is included when serializing the access token. JWTs (Jason Web Tokens) are identified with a "Bearer" prefix. Typically the prefix is required for calls made across the wire. Members Name Value Description Yes 0 No 1 Defined in clients/itwin/src/Token.ts Line 19 Last Updated: 29 November, 2022