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SMS API Angola — Send SMS from Your Application

Integrate powerful messaging infrastructure directly into your software. Send transactional SMS, OTPs, and bulk campaigns to Angolan phone numbers (+244) using our reliable, developer-friendly REST API.

Read the SMS API documentation Get your API Key

What is CastBrick's SMS API?

An SMS API is a software interface that allows developers to programmatically trigger and manage text messages from their own applications. Instead of logging into a dashboard to send messages manually, your backend code communicates with CastBrick via a simple HTTP request.

CastBrick provides a modern, RESTful SMS API designed for scale. By integrating our API, you can automate customer communications, send instant alerts, and verify user identities without having to manage complex telecom infrastructure or local carrier connections.

Send SMS to Angola with an API

Reaching users in Angola requires a reliable connection to local mobile networks. Our SMS Gateway is specifically optimized for routing messages to +244 phone numbers with high deliverability and minimal latency.

Whether you are a local business building a custom CRM or an international platform verifying Angolan users, CastBrick handles the complexities of local SMS delivery. From OTPs to bulk marketing blasts, your messages reach their destination quickly. [VERIFY: Supported operators (e.g., Unitel, Africell)]

Developer-first SMS API

  • ✓ REST API: Standardized endpoints returning clear JSON responses.
  • ✓ Authentication: Secure API key integration.
  • ✓ Delivery Status: Real-time tracking and webhooks.
  • ✓ Sender IDs: Custom alphanumeric sender names.
Explore the API reference →
curl -X POST "https://api.castbrick.co/v1/messages" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "to": "+244900000000",
    "sender_id": "YOURBRAND",
    "text": "Your verification code is 4829."
}'

SMS Use Cases

OTP & Verification

Secure your application with instant SMS verification. Send login codes, two-factor authentication (2FA), and password resets reliably to Angolan users.

Read the OTP documentation

Transactional SMS

Keep your customers informed automatically. Trigger order confirmations, appointment reminders, and payment receipts directly from your backend.

Learn about transactional messaging

Bulk SMS Angola

Scale your marketing efforts. Send high-volume promotional campaigns and product announcements to large contact lists quickly and efficiently.

Discover Bulk SMS

System Notifications

Ensure critical information is seen immediately. Dispatch server alerts, downtime notifications, and urgent internal business communications.

View API endpoints

Why use CastBrick for SMS in Angola?

Angola-Focused Infrastructure

Our routing is optimized for local delivery, ensuring your messages reach Angolan phone numbers without international gateway delays.

Built for Developers

A clean REST API, comprehensive developer documentation, and straightforward authentication make integration painless.

Delivery Tracking

Get real-time insights into your messaging. Track delivered, failed, and pending messages directly in your dashboard or via webhooks.

Sender ID Management

Build brand trust by sending messages from your custom alphanumeric Sender ID instead of a generic shortcode.

How much does SMS cost in Angola?

We believe in transparent, predictable pricing for developers and businesses. You pay a straightforward rate in Kwanza (AOA) per successful message delivered, with absolutely no hidden fees or monthly minimums.

View SMS pricing in Angola

Start sending SMS from your application

Join modern businesses and developers using CastBrick's messaging infrastructure. Integrate in minutes.

Read the SMS API documentation

Perguntas Frequentes

Tudo o que precisa de saber sobre a nossa infraestrutura de SMS em Angola.