SMS in Sao Tome and Principe

Bulk SMS, OTP & SMS API
in Sao Tome and Principe.

Reach every subscriber on CST & Unitel with direct routes into Sao Tome and Principe. Bulk campaigns, transactional alerts, OTP verification and SMPP - one platform, local sender IDs, from STN 1.9432 per SMS.

Start free View Sao Tome and Principe pricing

Direct operator routes Local sender IDs 99.9% uptime

Networks we reach in Sao Tome and Principe

CSTUnitel

Hub

Sao Tome

Status

Live in production

Send your first SMS

Everything for Sao Tome and Principe

One account for messaging in Sao Tome and Principe.

Bulk SMS

Send campaigns, alerts and notifications to any Sao Tome and Principe number with delivery reports.

See rates

SMS API

A simple REST API and SDKs (Python, Node, PHP, Go) to send SMS from your app in Sao Tome and Principe.

Read the docs

OTP & Verify

Generate, send and check one-time passcodes for Sao Tome and Principe sign-ups and 2FA in two API calls.

Explore Verify

SMPP Gateway

Bind over SMPP 3.4 for high-throughput A2P traffic into Sao Tome and Principe networks.

SMPP access

Transactional and marketing email with SPF, DKIM and DMARC set up for you.

eSMS Mail

Short Links

Branded short links and QR codes with click, country and device analytics.

eSMS Links

Sao Tome and Principe pricing

Transparent SMS rates.

Live rates - updated automatically.

Full pricing

Basic

STN 2.2685/ SMS

STN 0 - STN 16,455

Intl: USD 0.1067 / SMS

Business

STN 2.1069/ SMS

STN 16,476 - STN 65,844

Intl: USD 0.0991 / SMS

Enterprise

STN 1.9432/ SMS

STN 65,865+

Intl: USD 0.0914 / SMS

Why eSMS Africa

Built to deliver in Sao Tome and Principe.

Direct routes in Sao Tome and Principe

Traffic reaches CST & Unitel over direct, monitored connections - not grey routes - so delivery and speed stay high.

Local sender IDs

Compliance built in

We handle sender-ID rules, DND and regulator requirements in Sao Tome and Principe so your traffic stays clean and stays live.

Delivery you can see

Real-time delivery reports, per-message logs and analytics for every campaign and OTP you send into Sao Tome and Principe.

Banks & fintech

OTP, transaction alerts and fraud notifications for Sao Tome and Principe customers.

E-commerce

Order confirmations, delivery updates and win-back campaigns.

Health & NGOs

Appointment reminders and field alerts that reach rural Sao Tome and Principe.

Logistics

Dispatch, pickup and tracking messages to drivers and customers.

FAQ

SMS in Sao Tome and Principe, answered.

Everything about sending bulk SMS, OTP and API messages to Sao Tome and Principe networks.

How do I send bulk SMS in Sao Tome and Principe?

Create a free eSMS Africa account, top up, add your sender ID and send from the dashboard or the SMS API. We route directly to CST & Unitel in Sao Tome and Principe with delivery reports on every message.

Which mobile networks do you cover in Sao Tome and Principe?

We deliver to all major operators in Sao Tome and Principe: CST, Unitel.

How much does an SMS cost in Sao Tome and Principe?

Local A2P SMS in Sao Tome and Principe starts from STN 1.9432 per message, with lower rates as your volume grows. See the pricing page for current basic, business and enterprise tiers.

Can I send OTP and 2FA codes in Sao Tome and Principe?

Yes. eSMS Verify generates, sends, rate-limits and checks one-time passcodes for Sao Tome and Principe numbers with your branded sender ID and templates - two API calls, no code state to manage.

Do you support SMPP in Sao Tome and Principe?

Yes. High-volume senders can bind over SMPP 3.4 for Sao Tome and Principe traffic with per-bind throughput, delivery receipts and a client portal. Request SMPP access from the dashboard.

Sao Tome and Principe guides