Authkey

Authkey

Authkey.io
SendSeven

SendSeven

SendSeven GmbH
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About

Authkey is a multi-channel CPaaS platform providing SMS API, WhatsApp Business API, Voice API, Email API, and Google RCS. It helps businesses send notifications, promotional messages, transactional messages, OTPs, 2FA, and more. Designed for responsiveness and ease of use, Authkey allows you to start without adding any credit cards. Authkey offers a free sandbox account for building, testing, and deploying. It supports easy-to-integrate APIs for all channels and over 1,000 automation options via Zapier, Pabbly, Integrately, and other partners. You can easily push bulk campaigns through all channels. WhatsApp Chatbot for intelligent customer query responses. Join over 200 active businesses working with us and grow together.

About

SendSeven is a GDPR-compliant unified messaging and customer engagement platform that connects WhatsApp, SMS, Email, Instagram, Messenger, Live Chat, Telegram, and browser push through one REST API and one shared inbox. Official Meta Business Partner. Core capabilities: • Shared inbox for support & marketing — all channels with assignments, tags, notes • WhatsApp Business API with Coexistence — connect your number without migrating • AI chatbot & Knowledge Base — RAG answers from your content, human handoff • Visual Flow Builder — no-code automation • Campaigns — WhatsApp broadcasts, SMS, email, and browser push • REST API, webhooks, Zapier & n8n — one endpoint, every channel • Analytics and auto-translation (100+ languages) Plans from €49/month; API Only from €9/channel/month. No per-user fees. Unlimited seats and contacts. Free inbound. EU servers (Frankfurt). Made in Germany. EU AI Act ready. 14-day free trial, 100 test messages, no credit card.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Business looking for message sending via SMS API integration, Whatsapp business API, Voice call API, OTP authentication & authorization

Audience

Developers integrating messaging via API, marketing teams running multi-channel campaigns, customer support teams managing conversations, IT departments consolidating communication tools, SaaS companies, e-commerce businesses, digital agencies, and SMBs to enterprises needing WhatsApp, Telegram, SMS, and Email in one platform.

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

$0
5,000 Messages Rs.1,350
10,000 Messages Rs.2,200
1,00,000 Messages Rs.14,000
5,00,000 Messages Rs.55,000
10,00,000 Messages Rs.1,05,000
Free Version
Free Trial

Pricing

€9 per channel/month
Fixed monthly plans, each with an included message bundle; beyond it you pay a transparent per-message rate. Basic €49, Professional €79 (adds AI & automation), Scale €199, Enterprise €499. Developers can use API Only from €9 per channel/month. No per-user fees, unlimited users and contacts, inbound messages always free, cancel monthly. No hidden fees, no setup costs — the plan price is what you pay. Includes a 14-day free trial with 100 test messages, no credit card.
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 5.0 / 5
ease 4.0 / 5
features 5.0 / 5
design 4.0 / 5
support 5.0 / 5

Pros & Cons from Real Users

Pros

  • All features, such as chatbots and live translation, are included. The chatbot builder uses a drag-and-drop interface and is easy to use. The provider offers not only WhatsApp but also many other channels, such as email, Instagram, Telegram, and SMS. We really appreciated the ability to continue using our WhatsApp Business app alongside the platform. The automations for customer service and marketing are very helpful.

Cons

  • The wide range of settings seems very complex at first and isn't immediately clear without the instructions and tutorials.

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Authkey.io
Founded: 2020
India
authkey.io

Company Information

SendSeven GmbH
Founded: 2026
Germany
sendseven.com

Alternatives

Alternatives

MirrorFly

MirrorFly

CONTUS TECH
Lime Connect

Lime Connect

Lime Connect (formerly Userlike)

Categories

Categories

Customer Communications Management Features

Batch Communications
Chat / Messaging
Content Management
Email Distribution
Interactive Content
Multi-Channel Communications
On-Demand Communications
Personalization
Print Management
Template Management
Video Content

Integrations

Zapier
Facebook Messenger
HubSpot CRM
HubSpot Customer Platform
Instagram
Integrately
Kylas
Pabbly Connect
Telegram
WhatsApp
n8n

Integrations

Zapier
Facebook Messenger
HubSpot CRM
HubSpot Customer Platform
Instagram
Integrately
Kylas
Pabbly Connect
Telegram
WhatsApp
n8n
Claim Authkey and update features and information
Claim Authkey and update features and information
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