Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2023	Nov. 06, 2023
Document Information Line Items
Entity Registrant Name	authID Inc.
Trading Symbol	AUID
Document Type	10-Q
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		7,874,962
Amendment Flag	false
Entity Central Index Key	0001534154
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Document Period End Date	Sep. 30, 2023
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Shell Company	false
Entity Ex Transition Period	true
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	001-40747
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	46-2069547
Entity Address, Address Line One	1580 North Logan Street
Entity Address, Address Line Two	Suite 660, Unit 51767
Entity Address, City or Town	Denver
Entity Address, State or Province	CO
Entity Address, Postal Zip Code	80203
City Area Code	516
Local Phone Number	274-8700
Title of 12(b) Security	Common Stock par value $0.0001 per share
Security Exchange Name	NASDAQ
Entity Interactive Data Current	Yes