How do I create an OAuth token to use the JIRA REST api

[Siomara Jimenez]

Hello I created an app to login to a tool that I made, I correctly did all the oauth dance and I retrieve an access token.

My question is how can I verify that the provided access token is correct?. I have an api that make requests to somewhere else and I want to send that access token to make sure only those user who are authenticated with Jira can fetch information?. I cant find any information and Im lost.