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Sling is a messaging API platform that lets you send SMS, RCS, and Truecaller messages to recipients in Nigeria. With a single REST API and your API token, you can integrate powerful messaging capabilities into any application.

Quick Start

Send your first message in minutes with a step-by-step walkthrough.

Authentication

Get your API token and learn how to authenticate every request.

API Reference

Exact endpoint fields, response fields, and request formats.

Guides

Step-by-step guides for sending messages and managing contacts.

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Get started in 3 steps

1

Create your account

Sign up at app.sling.com.ng and log in to your dashboard.
2

Get your API token

Visit Account → API in your dashboard to copy your API token.
3

Send your first message

Make a POST request to /api/v1/send-sms with your token in the Authorization header and start messaging.

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What you can do with Sling

Send SMS

Deliver transactional and promotional SMS to individuals, contact lists, or groups.

Send RCS

Rich messaging with cards, carousels, images, and interactive suggestions. Use fallback_sms and fallback_sms_sender for SMS fallback when RCS is unavailable.

Truecaller Messaging

Reach users on Truecaller with branded, verified messages.

Manage Contacts

Create groups, add contacts, and target entire lists with a single API call.
Have questions? Email [email protected] — the Sling team is happy to help.