One Wallet · Five Services · Everything Online

Everything you need,
in one platform.

Virtual numbers, AI chat, text-to-speech & transcription, bulk SMS, and a marketplace for digital products — all billed from a single balance.

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Virtual Numbers AI Chat Speech Studio Bulk SMS Marketplace Virtual Numbers AI Chat Speech Studio Bulk SMS Marketplace

Five services. One balance.

Top up once in KES and use whichever tool you need — nothing to sign up for separately.

from KES 20 / number
Virtual Numbers

Buy SMS-verified numbers for WhatsApp, Telegram, Google and more — delivered instantly after payment, with automatic refund if an OTP fails to arrive.

Get a number
KES 0.20 / word
AI Chat

Ask anything and get natural, fast answers powered by leading language models — billed only for the words you actually send.

Start chatting
from KES 0.30 / word
Speech Studio

Turn text into natural voice in multiple accents, or convert speech to text by pasting a link, uploading a file, or recording live.

Open Speech Studio
from KES 0.80 / message
Bulk SMS

Send a single message or reach thousands in one batch, with delivery logs and reports for every campaign you send.

Send SMS
priced by seller
Marketplace

Buy ready-made websites, database templates, and ebooks — or upload your own and get paid straight into your wallet.

Browse the store
for developers
Developer & Reseller API

Integrate any of the above into your own product — virtual numbers, AI chat, speech, or SMS — with a single API key and full documentation.

View documentation

Developer & Reseller Ecosystem

We provide a comprehensive, industry-leading API for resellers and developers to assist in the seamless integration of our services into your existing software stack. Whether you are automating virtual number provisioning, embedding AI chat, running speech conversion at scale, sending bulk SMS, or extending our marketplace, our API is engineered to facilitate effortless, reliable, and secure connectivity.

Enterprise-Grade Infrastructure

Engineered for uncompromising performance, global scalability, and developer-centric flexibility.

Real-Time Data Synchronization

Our proprietary, low-latency architecture utilizes distributed nodes to ensure instantaneous provisioning across every service, from numbers to AI replies.

Multi-Layered Security Protocols

AES-256 encryption for data at rest and in transit, with an AI-driven threat detection engine continuously monitoring for anomalies.

Elastic Global Infrastructure

Auto-scaling, cloud-native backbone keeps every service responsive during demand surges, wherever your users are.

Intelligent Analytical Dashboards

Granular, visually rich reports across all five services — spend, usage, and performance in one dashboard.

Priced like a utility, not a subscription

No tiers, no lock-in — one wallet, transparent per-unit rates.

Service Rate
Virtual Numbers
per number, country-dependent
from KES 20
AI Chat
per word sent
KES 0.20
Text to Speech
per word converted
KES 0.20
Speech to Text
per word transcribed
KES 0.30
Bulk SMS
per message
from KES 0.80
Marketplace items
per download
set by seller

Why Our Virtual Numbers Stand Out

Reliable, fast, and secure numbers built for modern online verification needs.

Instant Activation

Get your virtual number immediately after purchase with no delays or manual setup.

Privacy & Security

Protect your personal SIM number while safely verifying accounts online.

Worldwide Access

Choose from multiple countries and platforms including WhatsApp, Telegram, Google, and more.

Fair Usage & Refund Policy

If an OTP fails to be delivered, your balance is automatically refunded. Once an OTP is successfully received, the order is considered completed and is non-refundable.

Get Your Number Now

Questions before you start

The things people usually ask before creating a wallet.

No. Whatever you top up stays in your wallet until you spend it, across any of the five services — no monthly reset.

Yes. Virtual numbers, AI Chat, Speech Studio, Bulk SMS, and the Marketplace all draw from the same wallet — no separate sign-ups or top-ups needed.

You're automatically refunded. You're only charged once the OTP is successfully delivered.

When someone buys your upload, the price is credited straight to your wallet balance, ready to spend on any other service or withdraw.

Yes — every service (numbers, AI chat, speech, SMS) is available through our Developers API for integration into your own product.

Start Building with NEXISIM

One wallet. Five services. Everything online, in one place.

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