KZAI
| 
 | |
|---|---|
| Broadcast area | Greater San Antonio | 
| Frequency | 103.7 MHz (HD Radio) | 
| Programming | |
| Language | English | 
| Format | Christian worship music | 
| Subchannels | 
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| Network | Air1 | 
| Ownership | |
| Owner | Educational Media Foundation | 
| KZLV, KZAR | |
| History | |
| First air date | May 20, 1968 (as KCTA-FM in Sinton) | 
| Former call signs | 
 | 
| Call sign meaning | Contains AI for "Air1" | 
| Technical information | |
| Licensing authority | FCC | 
| Facility ID | 7084 | 
| Class | A | 
| ERP | 2,300 watts | 
| HAAT | 119 meters (390 ft) | 
| Transmitter coordinates | 29°26′29.9″N 98°30′22.8″W / 29.441639°N 98.506333°W | 
| Translator(s) | 92.7 K224EH (Victoria) | 
| Links | |
| Public license information  | |
| Webcast | Listen Live Listen Live (HD2) | 
| Website | air1.com klove.com nuevavida.com (HD3) | 
KZAI (103.7 FM) is a radio station broadcasting a Christian worship music format through the nationally programmed Air1 network. The station is licensed to Balcones Heights, Texas, United States, and serves the San Antonio area. The transmitter is located in San Antonio proper, due north of downtown and adjacent to Interstate 10. KZAI is owned by the Educational Media Foundation.
Originally a station in the Corpus Christi area, the station moved in 2021 as part of a facilities shuffle that moved a third EMF signal into San Antonio (alongside existing K-Love outlet KZLV and rimshot Air1 outlet KZAR). The former 103.7 facilities and KXAI call sign were moved to another license, leaving Air1 programming seamlessly available to Corpus Christi-area listeners.