Overview
Quick Start
REST API & General
- REST format
- Authentication
- API limits
- Handling notifications
- Verifying notifications
- Currency codes
Voice API
- Make call
- Call conference
- Hangup
- Call history
- Call rate
- Query call status
Conference API
- Call conference
- Conference moderate
SMS API
- Send SMS
- Send bulk SMS
- Receive SMS
- SMS history
- SMS rate
- Query SMS status
IVR API
- An Overview
- Answer
- Dial
- Play
- Gather
- Record
- Monitor
- Transfer
- Hangup
Fax API
- Send fax
- Receive Fax
- Fax history
- Fax rate
- Query fax status
Number API
- List supported countries
- List available numbers
- Number rates
- Number subscription
- Configure forwarding URLs
- List subscribed numbers
Account API
- Credit balance
- Account info
SDK
- Java
- C#
- PHP
- Python
- Ruby
Examples
- Two-factor authentication
- Click-to-call
- Booking confirmation
- Conference call (outgoing)
- Conference call (incoming)
- Auto Attendant
API Reference
Free Trial
Developer Agreement

SMS API

SMS is one of the most popular forms of mobile communications. Chatting between friends, 2-factor authentication by your bank's online portal, receiving alerts from your stock market applications and SMS marketing are just some of the more popular uses of SMS.

The SMS API component of Hoiio API allows developers to send/receive SMS to/from more than 200 countries around the world at a very competitive rate.