Hey there @kristen-s welcome to the community, and thanks for the detailed description of what you’re experiencing
Looking at our quickstart for calling an API leads me to believe you’d want to add the audience to your Auth0ClientOptions
like:
const options: Auth0ClientOptions = {
domain: <tenant>.us.auth0.com,
clientId: <clientId>,
audience: <your_api_identifier>,
authorizationParams: {
redirect_uri: http://localhost:<port>/,
}
};
You are correct though in that you will need an audience in the context of using it against your Express server:
Keep us posted!