extensions property

Map<String, Map<String, Object?>>? get extensions

Optional MCP extensions that the client supports. Keys are extension identifiers (e.g., "io.modelcontextprotocol/oauth-client-credentials"), and values are per-extension settings objects. An empty object indicates support with no settings.

Keys MUST follow the , with a mandatory prefix.

Implementation

Map<String, Map<String, Object?>>? get extensions => $optional('extensions', $map($object));