Reliable messaging at scale

The enterprise bulk SMS platform for Africa

Send bulk and scheduled SMS, run OTP and automation, and integrate your billing system with M-Pesa payments, multi-gateway failover, and a developer-first API.

No setup fees · Pay as you go · from KES 0.25 / SMS

Cloud messaging chat bubbles connecting through the cloud
“Your OTP is 4821”

99.9%

Uptime SLA

<3s

Avg. delivery

3+

Payment rails

Millions

Messages / day

Features

Everything you need to send at scale

A complete messaging platform from bulk sends and OTP to billing integrations and analytics.

Bulk & single SMS

Send to one number or millions with per-recipient personalization, merge fields, and instant queueing.

Scheduled campaigns

Plan, schedule, throttle, and track campaigns with live delivery analytics and audience groups.

Multi-gateway failover

Least-cost routing across providers with automatic failover, delivery reports, and health checks.

OTP & verification

Generate and verify one-time passcodes over SMS with TTL, attempt limits, and resend control.

Wallet & M-Pesa top-ups

Prepaid wallet with a full ledger. Top up with M-Pesa, card, or bank units never expire.

REST API & webhooks

A clean, versioned API with scoped keys and signed, retried webhooks for every delivery event.

Contacts & groups

Import via CSV, segment into groups, and manage blacklists and opt-outs automatically.

Analytics & reports

Delivery rates, spend, and campaign performance filterable and exportable to CSV on demand.

ISP billing gateway

Drop-in gateway URL for SmartISP, WHMCS, and other billing systems to send SMS in minutes.

Channels

One API, every messaging channel

Reach customers over the rails that matter reliably and with full delivery visibility.

SMS

Reliable transactional and promotional SMS with branded, approved sender IDs.

OTP

Secure verification flows with time-to-live, attempt limits, and resend throttling.

Webhooks

Signed, retried delivery-status callbacks so your systems always stay in sync.

REST API

A developer-first API to send, schedule, and query messages from any stack.

How it works

Live in three simple steps

From sign-up to your first campaign in minutes no lengthy onboarding.

01

Create your account

Sign up in seconds and verify your email and phone. Get free trial credits to test.

02

Fund your wallet

Top up instantly with M-Pesa or card. Credits never expire and you pay as you go.

03

Send & integrate

Send from the dashboard, schedule campaigns, or wire the REST API into your app.

Pricing

Simple, prepaid pricing

Buy SMS units in packages. No monthly fees, no expiry pay only for what you send larger bundles cost less per SMS.

Starter

KES 200

625 SMS units

KES 0.32 / SMS
  • 625 SMS units
  • Lifetime validity
  • All channels
  • API access
Most popular

Growth

KES 500

1,724 SMS units

KES 0.29 / SMSSave 9%
  • 1,724 SMS units
  • Priority routing
  • Webhooks & OTP
  • Custom sender ID

Scale

KES 3,000

12,000 SMS units

KES 0.25 / SMSSave 22%
  • 12,000 SMS units
  • Dedicated routes
  • Failover guarantees
  • Priority support

Need a custom volume or dedicated routes? Talk to us.

FAQ

Frequently asked questions

Everything you need to know before you start sending.

You buy SMS units in prepaid packages. One unit sends one 160-character SMS segment; longer messages use more units. Units never expire and there are no monthly fees.

You can top up with M-Pesa, card, and bank via our secure hosted checkout. Units are credited to your wallet automatically once payment is verified.

Yes. Every message is tracked from queued → sent → delivered, with provider delivery reports and signed webhooks so your systems stay in sync.

Absolutely. Request an alphanumeric sender ID from the dashboard; once approved by the networks it applies to all your messages.

Yes a clean, versioned REST API with scoped keys, plus a drop-in gateway URL for ISP billing software like SmartISP and WHMCS.

Failed sends are automatically refunded to your wallet, and you can see the exact failure reason on each message in Reports.

Contact

Talk to us

Questions about pricing, integrations, or high-volume sending? We'd love to help.

Email us

kweyudelron37@gmail.com

Call us

+254 742766340

Find us

Nairobi, Kenya

Enterprise & ISP billing?

Ask about dedicated routes, volume pricing, and white-label options.

Opens your email app, pre-filled to kweyudelron37@gmail.com.

Start sending in minutes

Join businesses and ISPs sending reliable messages with Cloud SMS Engine.