AnchorGrid's door detection API for construction floor plans has failed to deliver reliable results, exposing critical limitations in its OCR capabilities. The service, designed to detect doors in architectural PDFs by accepting a document ID and page numbers, queues jobs and returns bounding box coordinates in PDF space. However, users report consistent failures where the API returns no detections or erroneous results, even for simple, well-scanned documents.

This undermines its core promise of automating door identification in blueprints, a crucial task for construction professionals and estimators. The API's failure highlights a significant gap between the marketed capabilities and actual performance, raising concerns about its reliability for professional use.