Automatically managing personal token

We are using personal token management https://host:port/oidc/endpoint/(provider id)/personalTokenManagement to generate app-token for non-browser clients. The same is being used (as bearer token) while accessing OSLC API. As per documentation, default validity is for 90 days which we can configure (using appPasswordLifetime attribute).

Is it possible to generate app-token programmatically (so that we need not track expiry date and regenerate it manually)?