---
title: "Senviok: Transactional Messaging API in Nigeria"
description: "Send email, SMS, WhatsApp and OTPs via one REST API. Acks under 20ms. Free plan with 3,000 emails per month, no card. Lagos node."
canonical_url: "https://liners.com/senviok"
markdown_url: "https://liners.com/senviok.md"
type: "product"
language: "en"
image: "https://assets.liners.com/storage/v1/object/public/media/tools/senviok/screenshot.webp?v=1789389638394"
published_at: "2026-09-18T08:14:01.151Z"
updated_at: "2026-10-01T03:01:22.616Z"
---

# Senviok: Transactional Messaging API in Nigeria

Send email, SMS, WhatsApp and OTPs via one REST API. Acks under 20ms. Free plan with 3,000 emails per month, no card. Lagos node.

## Breadcrumbs

- [Communication & Social](/categories/communication-social)
- [Senviok](/senviok)

## Summary

Transactional email, SMS, WhatsApp, and OTP via one API

A developer-first messaging infrastructure platform for engineering teams to send transactional email, SMS, WhatsApp, and OTPs globally with domain authentication and delivery logs.

## Product details

| Field | Value |
| --- | --- |
| Website | https://www.senviok.live/ |
| Tagline | Transactional email, SMS, WhatsApp, and OTP via one API |
| Primary country | Nigeria |
| Platforms | Web, API |
| Average rating |  |
| Published reviews | 0 |
| Verified listing | No |

## About the product

Senviok is a developer-first messaging infrastructure platform for engineering teams and product companies that need reliable delivery of **transactional email, SMS, WhatsApp messages, and OTPs** through a single REST API.

Key capabilities include:
- **Unified messaging API**: Send email, SMS, and WhatsApp with **one API key**, **one wallet**, and **one log stream**, using consistent endpoints such as `/v1/emails`, `/v1/sms`, and `/v1/whatsapp`.
- **Durable queueing and retries**: Requests are acknowledged in **under 20ms** and buffered in a durable ingestion queue with **automatic retries**, **exponential backoff with jitter (1s → 4s → 16s + jitter)**, and **dead-letter handling** to reduce message loss during provider outages or rate limits.
- **Email domain authentication automation**: Generates **DKIM (triple CNAME)**, **SPF**, and **DMARC** DNS records for sending domains, then monitors DNS propagation to support inbox placement without running mail servers.
- **Security and observability**: Supports **HMAC-SHA256 signed webhooks**, **live API key rotation** from the dashboard, **SHA-256 credential hashing**, plus an operational status page that publishes metrics like **30-day uptime**, ingestion latency, queue depth, and per-region latency.

Available via **Web dashboard** and **REST API** (with official **Node.js** and **Python** SDKs; usable from any language via HTTP).

Target users include **developers, engineering teams, and B2B product companies** building authentication, password resets, payment notifications, alerts, and other critical transactional messaging flows.

Notable for African teams, it lists a **Lagos** regional node and prices plans in **Naira (₦)** (with USD pricing also available), including a **free plan** with **3,000 emails/month** and no card required, plus a public status console at **status.senviok.live** for operational transparency.

## Features

- [Communication & Social](/categories/communication-social): Category
- [B2B](/tags/b2b): Product feature or technology
- [Messaging](/tags/messaging): Product feature or technology
- [Nigeria](/countries/nigeria): Market

## Related pages

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

## Access and citation

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