Hi there. I have implemented a few types of SMS APIs before including my preferred options of Twillio and TextMagic. I use them to send me SMS when I receive orders on my own websites. These accounts both need to be topped-up via the control panel on their websites to make sure there are enough funds to send messages.
I developed that integration with PHP.
What do you need the SMS to do and is your site built on a framework?
I'd like to chat more with you about the project, to be sure my proposal is the correct amount - I am confident that it's just fine.
Hope to hear from you.
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In the meantime, let me tell you more about myself.
I worked for 11 years as the sole full-time in-house developer for a yacht charter company based in Cannes, working with PHP/MySQL/HTML/CSS/Javascript both front-end and back-end. I created their customer site complete with search, bookings, content/CMS, accounts/financial tools, sales rep tools with automated proposals, the list is endless. Since 10 years I have been running my own games website for a dice game, which I designed and built, it includes a forum, AJAX chat and AJAX game, with automated daily tournaments. I have been on Freelancer.com since May, please check out my reviews.
Please send me a message with any relevant details, if you like my proposal, even if I am offline, and let me know when is a good time to catch you. I will reply to any messages ASAP.