It is currently not possible to view via the API the user who approved a manual approval step. This user should be listed when requesting the data for the job that required approvalhttps: //circleci.com/docs/api/#recent-builds-for-a-single-projectThe API currently lists: "committer_name" : "Allen Rohner", "committer_email" : " arohner@gmail.com ", A similar convention for approval could be used, and to indicate if a job is an approval job. Example: approval: { "approval" : true "approver_name" : "Allen Rohner", "approver_email" : " arohner@gmail.com ", } CCI-I-822