Apsuhomya was one of the ṛṣi(s) (rishi; sage) who came to the sabhā (sabha; court) of Yudhiṣṭhira (Yudhishthira) after the foundation of Indraprastha.

Mahābhārata (Kinjawadekar)(2.4.12)
Mahābhārata Vols. 1-43 (Siddhāntabāgīśa)(2.4.9, see footnote, verse no. 3, vol.5, p.26)