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Cover - USD ($)
 12 Months Ended
Dec. 31, 2023
Mar. 19, 2024
Jun. 30, 2023
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2023    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2023    
Current Fiscal Year End Date --12-31    
Entity File Number 001-40792    
Entity Registrant Name BTCS Inc.    
Entity Central Index Key 0001436229    
Entity Tax Identification Number 90-1096644    
Entity Incorporation, State or Country Code NV    
Entity Address, Address Line One 9466 Georgia Avenue #124    
Entity Address, City or Town Silver Spring    
Entity Address, State or Province MD    
Entity Address, Postal Zip Code 20910    
City Area Code (202)    
Local Phone Number 430-6576    
Title of 12(b) Security Common Stock, par value $0.001    
Trading Symbol BTCS    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Reporting Status Current Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 11.0
Entity Common Stock, Shares Outstanding   15,691,209  
Documents Incorporated by Reference Portions of the registrant’s Proxy Statement for the 2024 Annual Meeting of Stockholders are incorporated herein by reference in Part III of this Annual Report on Form 10-K to the extent stated herein. Such Proxy Statement will be filed with the Securities and Exchange Commission (the “SEC”) within 120 days of the registrant’s fiscal year ended December 31, 2023.    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Auditor Name RBSM LLP    
Auditor Firm ID 587    
Auditor Location Las Vegas, Nevada