TextBelt

TextBelt (http://textbelt.com) is a texting API that uses carrier-specific gateways to deliver your text messages for free. This is nice for a low-cost texting app or testing without running down your Twilio balance.

Usage is dead simple:

$ curl http://textbelt.com/text \
   -d number=5551234567 \
   -d "message=I sent this message for free with textbelt.com"

Success and Failure

Sample success:

{"success":true}

Sample failure:

{"success":false,"message":"Exceeded quota for this phone number."}

Notes and Limitations

• IP addresses are limited to 75 texts per day. Phone numbers are limited to 3 texts every 3 minutes. If you need increased limits, please contact admin@textbelt.com.

• Some carriers may deliver text messages from "txt@textbelt.com"

• We support the following U.S. providers: Alltel, Ameritech, AT&T Wireless, Boost, CellularOne, Cingular, Edge Wireless, Sprint PCS, Telus Mobility, T-Mobile, Metro PCS, Nextel, O2, Orange, Qwest, Rogers Wireless, US Cellular, Verizon, Virgin Mobile.