Documentation
One set of guides for everyone, business owners, first-time builders and working developers. Every page is labelled so you know before you click whether it expects you to write code.
How the labels work
- EveryoneNo coding required. Plain language, concepts only.
- BeginnerYour first hands-on steps. Clicking through a dashboard, not writing code.
- DeveloperCode, endpoints and integration detail.
- ReferenceLook-up tables. Come here when something breaks.
Use the filter at the top of the sidebar to hide the levels that aren't yours.
Get started
What is Digimart?
The idea in plain language: charge Grameenphone users from inside your app.
How you get paid
Revenue share, taxes, and where the money actually goes.
Glossary for newcomers
MSISDN, OTP, SDK, callback, every bit of jargon on this site, decoded.
Create a developer account
Sign up, verify your email with an OTP, and log in.
Provision your app
Register an app, enable the CaaS API, and submit it for approval.
Charging
Quickstart
From zero to your first successful charge, end to end.
Subscription Charging SDK
Recurring billing: subscribe, renew, and unsubscribe users.
One-Time Charging SDK (CaaS)
Charge a specific amount once, for a single purchase or unlock.
Signatures & authentication
How to build the SHA-512 request signature, in five languages.
REST API reference
Subscriber lists, charging info and unsubscription: the JSON APIs you call after a subscriber exists.