Information Centre
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API & Developer Documents
Interfaces (851kb)
HTTP API Overview (323kb)
Receiving SMS API (75kb)
Additional Message Features (288kb)
Sending Message over HTTP using PHP (113kb)
Kapow SMS Libraries - v1.0 Windows DLL (93kb)
Kapow SMS Libraries - v1.0 PHP (145kb)
Guides
Receiving SMS (205kb)
SMS Coverage (1,022kb)
GSM Character Set (122kb)
Premium SMS (82kb)
Charity Shortcode Donation Guidelines (39kb)
Sending Standard Rate SMS to USA (252kb)
Charity PSMS (81kb)
Case Studies
Building your SMS Marketing Database (129kb)
Missing People Case Study (50kb)
Optimising SMS in the Travel Industry (55kb)
Honeys Case Study (94kb)
Good to know
Why add SMS to YOUR Software (39kb)
How to Choose An SMS Provider (49kb)
Compare Contact Methods (44kb)
SMS Facts & Figures (42kb)
Privacy Notice (98kb)
Popular Business Uses and Users of SMS (35kb)
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See how it can work for you
"Kapow's email2SMS service fulfils VolvoIT's desire to have a fast cheap and reliable solution for email to sms with very low administrative overhead... The fact that Kapow are still improving and developing the service is testament to... " – Nigel Frost, Volvo IT Read more
"We've never had a single problem in all of these years. In two words: "It works." These guys really do what they say on the tin....and there's nothing more you can ask, which means we'll be Kapowing for many years to come!" – Triston Russell, Amherst Consultants LLP Read more
"KAPOW! delivers text messaging to our mobile phone users in 10 seconds....Accounting is streamlined, and purchasing new messaging units is easy. Very recommendable." – Telecommunications Manager, London School of Economics Read more
"Just about all our customers have mobile phones and all our sales people do so SMS as a broadcast or individual communication managed seamlessly through Kapow's gateway " – Richard Whitbread, Seiko UK Read more
"I have been delighted with the service I have received from Kapow. They were quickly able to pick up on our requirements and gave prompt and helpful responses to my queries. I would recommend this company to anyone. " – Val Whetton, Motofix Accident Repair Centres Read more
