---
title: "Helliomessaging: Bulk SMS, OTP and Email API"
description: "Enterprise messaging API for African businesses: bulk/transactional SMS, OTP & 2FA, voice, email, WhatsApp, plus number lookup and web console."
canonical_url: "https://liners.com/hellio"
markdown_url: "https://liners.com/hellio.md"
type: "product"
language: "en"
image: "https://assets.liners.com/storage/v1/object/public/media/tools/helliomessaging/screenshot.webp?v=1789989808580"
published_at: "2026-09-22T16:41:56.073Z"
updated_at: "2026-09-24T15:45:55.847Z"
---

# Helliomessaging: Bulk SMS, OTP and Email API

Enterprise messaging API for African businesses: bulk/transactional SMS, OTP & 2FA, voice, email, WhatsApp, plus number lookup and web console.

## Breadcrumbs

- [Communication & Social](/categories/communication-social)
- [Hellio](/hellio)

## Summary

Enterprise SMS, OTP, voice and email via one API

An enterprise messaging platform for African businesses to send bulk SMS, OTP & 2FA, voice, email, WhatsApp, and number lookup via a single API.

## Product details

| Field | Value |
| --- | --- |
| Website | https://helliomessaging.com/ |
| Tagline | Enterprise SMS, OTP, voice and email via one API |
| Primary country | Ghana |
| Platforms | Web, API |
| Average rating |  |
| Published reviews | 0 |
| Verified listing | No |

## About the product

Hellio is an **enterprise messaging platform** for African businesses that need bulk and transactional communications across SMS, voice, email, WhatsApp, and number lookup.

Key capabilities include:

- **Bulk and transactional SMS** built for high volume delivery, with smart routing and reported **98%+ delivery** across **800+ direct carriers**
- **OTP and 2FA** delivery over **SMS, voice, WhatsApp, or email**, designed for sub-second verification flows (for example, login and payment approvals)
- **Voice messaging** using **text-to-speech** and audio calls for alerts, verification, and notifications
- **Transactional email** for messages such as receipts, welcome emails, and login alerts
- **Number Lookup (HLR lookup)** to validate numbers, check network and portability, and detect inactive lines before sending
- **Developer tools** including a **REST API** with JSON requests/responses, **secure webhooks** for delivery receipts, scoped API keys, official **SDKs** (Node.js, Python, PHP), and API reference documentation
- **Self-serve web console** to register, fund a wallet, import contacts (CSV/Excel), choose sender IDs, and send or schedule campaigns

Available on **Web** and via **API**.

It primarily serves **B2B teams** such as fintechs, banks, telecoms, e-commerce, logistics, healthcare, and government agencies, plus **resellers** using its **white-label program** to launch branded messaging services.

It is notable in Ghana and broader African markets for its focus on mission-critical messaging, published reliability targets such as a **99.9% uptime SLA**, and region-relevant tooling including wallet funding and Ghana-focused bulk SMS resources, plus a public status page at **status.helliomessaging.com**.

## Features

- [Communication & Social](/categories/communication-social): Category
- [B2B](/tags/b2b): Product feature or technology
- [Messaging](/tags/messaging): Product feature or technology
- [White-label](/tags/white-label): Product feature or technology
- [Ghana](/countries/ghana): Market

## Related pages

- [Alternatives](/hellio/alternatives)
- [Reviews](/hellio/reviews)
- [Transparency](/hellio/transparency)

## Access and citation

- [Canonical HTML page](https://liners.com/hellio)
- [Markdown route index](/sitemap.md)
- [Agent access guide](/llms.txt)