Integrations & API

Connect Saymatic to your CRMs and apps, or use the REST API to send messages programmatically.

Authentication

Pass your API key in the X-API-Key header with every request.

curl -X POST https://api.saymatic.ai/api/v1/messages/template \
  -H "X-API-Key: sm_your_key_here" \
  -H "Content-Type: application/json" \
  -d '{"to": "919876543210", "template": "invoice_notify", "variables": ["Rahul", "INV-001", "₹5,900", "01 Jun 2026", "https://pay.link/abc"]}'

HTTPS onlyBase URL: https://api.saymatic.ai

Your API Keys

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API Reference

Send a pre-approved WhatsApp template message to any number. Templates are created and approved under the Templates section. This endpoint works at any time — including outside the 24-hour conversation window.

Parameters

Field	Type	Required	Description
to	string	required	Recipient phone number (e.g. "919876543210"). Accepts +91 format too.
template	string	required	Exact name of the approved template (e.g. "invoice_notify").
language	string	optional	Template language code. Default: "en_US".
variables	array	optional	Array of values to fill {{1}}, {{2}}, {{3}}… placeholders in the template body.
header_variable	string	optional	Text value for the template header variable (only if your template has a {{1}} in the header).

Request Body

{
  "to": "919876543210",
  "template": "invoice_notify",
  "language": "en_US",
  "variables": [
    "Rahul Sharma",
    "INV-001",
    "₹5,900",
    "01 Jun 2026",
    "https://pay.razr.com/abc123"
  ]
}

cURL Example

curl -X POST https://api.saymatic.ai/api/v1/messages/template \
  -H "X-API-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "to": "919876543210",
  "template": "invoice_notify",
  "language": "en_US",
  "variables": [
    "Rahul Sharma",
    "INV-001",
    "₹5,900",
    "01 Jun 2026",
    "https://pay.razr.com/abc123"
  ]
}'

Response

{ "success": true, "messageId": "msg_tpl456" }