Simple, Powerful,
Integrate FastSMS features into your own software
using your preferred programming language.
Get instant access to everything you need to start integrating SMS
functionality into your software including 20 free credits for testing.
Our APIs are changing!
We’re upgrading our APIs and our platform; please visit our Developer Centre to learn more.
We support all languages (PHP, .NET, C#, Java, Python, Ruby etc) and new SDKs are being added to our documentation all the time.
SMS API Features
Access powerful fastsms features from within your own application using HTTP or SMTP
Send SMS via API
Send text messages up to 918 characters long from your app via HTTP or SMTP
Inbound SMS via API
Get inbound messages direct into your app using automatic HTTP POST forwarding
Manage Users
Create sub-users on the fly with their own credits, contact information & settings
Manage Contacts
Keep your data clean by syncing your fastsms contacts with your own application
Custom Reports
Retrieve the data from reports for specific users to check usage, message content & more
Message Status
Check the status of a specific sent message to see if it was delivered
