“At Harvard, we’re big fans of TextMarks. Not only have students been using SBOY [shuttle text service] for years to get shuttle schedules on demand, the underlying TextMarks API is so simple that we’ve introduced it in CS50 to teach students how to use APIs.”
The easiest to use, most reliable SMS API available:
TextMarks Text Message API
- Clear documentation and a commitment to excellent customer support.
- No speed limit. Others limit you to 1 per second.
- No long term contracts, no hidden fees, and simple pricing.
- No ads or forced headers. Control all 160 characters of your message.
- List management abstractions. Much more than a simple gateway.
- Stable at high speeds/volume. Your messages processed on time.
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Advanced API
Advanced API Integrations
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The “Send Text Messages by API” above is part of our larger API, ready for you to access more data, manage keywords, statistics, group membership, and more -- enough to build your own white label version of the TextMarks service!
Did you know...
Did you know that the entire www.TextMarks.com web site is built on top of our own API?That's how powerful and reliable it is. If our API is down, we're down.
Our API is built on modern lightweight web standards like basic HTTP and JSON. Our documentation and tools let you discover what's possible and make calls in your browser without writing a single line of code. Our protocols are open and easy to implement, and we offer production-ready client libraries for Python, PHP, Java, and .NET.
More Information
- Start Free Trial
- Text Message Request/Response (“SMS Auto-Responder”)
- Send Text Messages by API
- Download Client Libraries / SDKs
- API Error / Result Code reference
- API Function reference
- Terms of Use
- Support / FAQ / Help
- Reach a TextMarks engineer any time through our special API hotline: 415-326-4801
Ready to start?
Sign up today for a free trial and experience the power and simplicity of the best text message API you'll find.
