TNZ REST API v3.00

Build reliable communications with one API

Send SMS, Email, Voice, Fax, WhatsApp and RCS messages through one consistent JSON API. Manage contacts, opt-outs, replies and message results without stitching together separate platforms.

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Specification

OpenAPI YAML

Use the complete machine-readable definition to generate clients, validate requests or explore every endpoint.

View specification → AI-ready reference

LLM documentation

Give coding assistants a concise text reference containing endpoints, schemas and implementation examples.

View LLM reference → Testing toolkit

Postman collection

Import a ready-to-use collection and start testing TNZ API requests in your own Postman workspace.

Get the collection →