Knowledge Beacons: Web services for data harvesting of distributed biomedical knowledge.

Availability: The API and associated software is open source and currently available for access at https://github.com/NCATS-Tangerine/translator-knowledge-beacon.
Competing Interests: The commercial role of RMB within STAR Informatics / Delphinai Corporation is one of Founder CEO and Principal Scientist of the firm. All other authors working for the firm conducted the work under regular full-time or temporary employment contract basis, under primary supervision by RMB. The Biomedical Data Translator project outputs for this paper, open sourced and access in nature, as delivered by the consultancy subcontract, do not represent any other marketable commercial benefit to the firm in terms of patents, products in development, or marketed products. This does not alter our adherence to PLOS ONE policies on sharing data and materials.