v3.26.3
Cover Page
6 Months Ended
Jun. 30, 2026
Document Information [Line Items]  
Document Type S-4
Amendment Flag false
Entity Registrant Name Texas Ventures Acquisition III Corp
Entity Central Index Key 0002033991
Entity Primary SIC Number 6770
Entity Incorporation, State or Country Code E9
Entity Tax Identification Number 98-1802457
Entity Address, Address Line One 1012 Springfield Avenue
Entity Address, City or Town Mountainside
Entity Address, State or Province NJ
Entity Address, Postal Zip Code 07092
City Area Code 201
Local Phone Number 380-7500
Entity Filer Category Non-accelerated Filer
Entity Small Business true
Entity Emerging Growth Company true
Entity Ex Transition Period false
Business Contact [Member]  
Document Information [Line Items]  
Contact Personnel Name Troy Rillo
Entity Address, Address Line One 1012 Springfield Avenue
Entity Address, City or Town Mountainside
Entity Address, State or Province NJ
Entity Address, Postal Zip Code 07092
City Area Code 201
Local Phone Number 380-7500