@simon-at-timeshift 

Yes you can try it via a search query

query searchRepos($qstr: String!, $first: Int!) {
  search(query: $qstr, type: ISSUE, first: $first) {
    nodes {
      __typename
      ... on PullRequest {
        url
        number
        author {
          login
        }
      }
    }
  }
}
{

"qstr": "repo:parithiban/git-slack-bot type:pr is:open author:parithiban",

"first": 5

}