Cloud hosted dashboard for management and message sending. →
Developer-centric APIs for simple integration with custom tools. →
Other connection methods. →
Programmatically send SMS messages to New Zealand, Australia and 200+ countries. →
Reduce no-shows with automated reminders synced from your CRM, Calendar or API. →
Send critical alerts and notifications using SMS, Voice & Email in real-time. →
Reach your customers effectively with targeted SMS marketing campaigns. →
Send secure and personalised emails that reach the inbox. →
For mission-critical alerts, automate alerts as voice calls. →
Easily manage and deploy SMS campaigns in New Zealand with dedicated short codes. →
Sending timely, personalised broadcast messages to your audience has never been easier. →
Topics: News – 17 Jul, 2026
Upgrade your TNZ integration with simpler request structures, more communication channels, workflow automation, and a new way to connect AI tools to TNZ messaging.
Latest API release
v3.00
Built for cleaner integrations
OpenAPI 3.1 specification
Flattened message payloads
Expanded APIs and workflow support
Build and maintain message requests without the MessageData object.
MessageData
Work with contacts, opt-outs, partners, WhatsApp, RCS, and more.
Trigger multi-step TNZ workflows directly from your application.
Use the TNZ MCP Client to add messaging capabilities to AI tools and agents.
REST API v3.00 keeps the familiar TNZ messaging model while making everyday requests easier to construct. The most visible change is a flatter payload: message fields now sit in the primary object, so your integration no longer needs to wrap them in MessageData. The release also brings more TNZ services into one modern API, including improved Address Book API, Opt-Out API, WhatsApp and RCS.
In v2.04, message content and options are nested inside MessageData. In v3.00, fields such as Message and Destination can be supplied at the root level. That makes payloads easier to read, generate, validate, and troubleshoot.
Message
Destination
{ "MessageData": { "Message": "Your appointment is tomorrow", "Destinations": [ { "Recipient": "+6421000001" } ] } }
{ "Message": "Your appointment is tomorrow", "Destination": "+6421000001" }
These examples show the structural change only. Refer to the v3.00 documentation for the complete request schema and current field requirements.
Version 3.00 extends the range of TNZ services your applications can use. Existing API users can move beyond individual message sends and connect more of their communication operations.
Create, update, find, and organise contacts and groups, then send to saved contacts from your integration.
Bring opt-out management and relevant partner functions into your connected applications.
Use newly published APIs for richer messaging channels alongside TNZ's established SMS, email, voice, and fax services.
Start a multi-step workflow with a WorkflowTemplateID, giving your application a simple way to trigger more complete communication journeys.
WorkflowTemplateID
The TNZ MCP Client connects compatible AI tools and agents with TNZ services. It runs on your machine and passes the requests needed for delivery to TNZ, giving your AI workflows a direct route to real communication channels.
WHAT DOES MCP ENABLE?
Send SMS, email, and voice messages
Check delivery outcomes and replies
Manage Address Book contacts and groups
Act on communication results
Review the new request structure, identify the changes relevant to your v2.04 integration, and use the updated documentation to plan and test your upgrade.
Ready to revolutionise your messaging?Connect with people anywhere - boost engagement, responses and conversations.
20 credits over 14-days. No obligation. No credit card required.