Send a message

curl -X POST 'https://app.mailyte.com/api/v1/messages' \
  -H 'Authorization: Bearer mk_live_YOUR_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{
    "to": [
      "Ada Lovelace <ada@example.com>"
    ],
    "cc": [
      "accounts@acme.com"
    ],
    "from": "hello@yourdomain.com",
    "reply_to": "support@yourdomain.com",
    "subject": "Your receipt from Acme",
    "html": "<h1>Thanks, {{first_name}}</h1><p>Your order is on its way.</p>",
    "text": "Thanks, {{first_name}}\nYour order is on its way.",
    "variables": {
      "first_name": "Ada"
    },
    "tags": [
      "receipt"
    ],
    "headers": {
      "X-Order-Id": "ord_1234"
    },
    "metadata": {
      "order_id": "ord_1234",
      "tier": "pro"
    },
    "attachments": [
      {
        "name": "invoice.pdf",
        "content": "JVBERi0xLjQKJ...",
        "content_type": "application/pdf"
      }
    ]
  }'

const response = await fetch('https://app.mailyte.com/api/v1/messages', {
  method: 'POST',
  headers: {
    Authorization: 'Bearer mk_live_YOUR_API_KEY',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    "to": [
      "Ada Lovelace <ada@example.com>"
    ],
    "cc": [
      "accounts@acme.com"
    ],
    "from": "hello@yourdomain.com",
    "reply_to": "support@yourdomain.com",
    "subject": "Your receipt from Acme",
    "html": "<h1>Thanks, {{first_name}}</h1><p>Your order is on its way.</p>",
    "text": "Thanks, {{first_name}}\nYour order is on its way.",
    "variables": {
      "first_name": "Ada"
    },
    "tags": [
      "receipt"
    ],
    "headers": {
      "X-Order-Id": "ord_1234"
    },
    "metadata": {
      "order_id": "ord_1234",
      "tier": "pro"
    },
    "attachments": [
      {
        "name": "invoice.pdf",
        "content": "JVBERi0xLjQKJ...",
        "content_type": "application/pdf"
      }
    ]
  }),
});
const { data } = await response.json();

import requests
response = requests.post(
    "https://app.mailyte.com/api/v1/messages",
    headers={"Authorization": "Bearer mk_live_YOUR_API_KEY"},
    json={
      "to": [
        "Ada Lovelace <ada@example.com>"
      ],
      "cc": [
        "accounts@acme.com"
      ],
      "from": "hello@yourdomain.com",
      "reply_to": "support@yourdomain.com",
      "subject": "Your receipt from Acme",
      "html": "<h1>Thanks, {{first_name}}</h1><p>Your order is on its way.</p>",
      "text": "Thanks, {{first_name}}\nYour order is on its way.",
      "variables": {
        "first_name": "Ada"
      },
      "tags": [
        "receipt"
      ],
      "headers": {
        "X-Order-Id": "ord_1234"
      },
      "metadata": {
        "order_id": "ord_1234",
        "tier": "pro"
      },
      "attachments": [
        {
          "name": "invoice.pdf",
          "content": "JVBERi0xLjQKJ...",
          "content_type": "application/pdf"
        }
      ]
    },
)
data = response.json()["data"]

<?php

$response = Http::withToken('mk_live_YOUR_API_KEY')
    ->post('https://app.mailyte.com/api/v1/messages', [
    'to' => [
        'Ada Lovelace <ada@example.com>',
    ],
    'cc' => [
        'accounts@acme.com',
    ],
    'from' => 'hello@yourdomain.com',
    'reply_to' => 'support@yourdomain.com',
    'subject' => 'Your receipt from Acme',
    'html' => '<h1>Thanks, {{first_name}}</h1><p>Your order is on its way.</p>',
    'text' => 'Thanks, {{first_name}}
Your order is on its way.',
    'variables' => [
        'first_name' => 'Ada',
    ],
    'tags' => [
        'receipt',
    ],
    'headers' => [
        'X-Order-Id' => 'ord_1234',
    ],
    'metadata' => [
        'order_id' => 'ord_1234',
        'tier' => 'pro',
    ],
    'attachments' => [
        [
            'name' => 'invoice.pdf',
            'content' => 'JVBERi0xLjQKJ...',
            'content_type' => 'application/pdf',
        ],
    ],
]);

$data = $response->json('data');

require "net/http"
require "json"
uri = URI("https://app.mailyte.com/api/v1/messages")
request = Net::HTTP::Post.new(uri)
request["Authorization"] = "Bearer mk_live_YOUR_API_KEY"
request["Content-Type"] = "application/json"
request.body = {
  "to": [
    "Ada Lovelace <ada@example.com>"
  ],
  "cc": [
    "accounts@acme.com"
  ],
  "from": "hello@yourdomain.com",
  "reply_to": "support@yourdomain.com",
  "subject": "Your receipt from Acme",
  "html": "<h1>Thanks, {{first_name}}</h1><p>Your order is on its way.</p>",
  "text": "Thanks, {{first_name}}\nYour order is on its way.",
  "variables": {
    "first_name": "Ada"
  },
  "tags": [
    "receipt"
  ],
  "headers": {
    "X-Order-Id": "ord_1234"
  },
  "metadata": {
    "order_id": "ord_1234",
    "tier": "pro"
  },
  "attachments": [
    {
      "name": "invoice.pdf",
      "content": "JVBERi0xLjQKJ...",
      "content_type": "application/pdf"
    }
  ]
}.to_json
response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |http| http.request(request) }

{
  "message": "Message submitted successfully",
  "code": 200,
  "success": true,
  "data": {
    "message_id": "<01JBT8XQ2M@yourdomain.com>",
    "event_id": "01JBT8XQ2M9WYC3K4F6R7S8T9V",
    "to": "ada@example.com",
    "from": "hello@yourdomain.com",
    "subject": "Your receipt from Acme",
    "submitted_at": "2026-09-17T10:04:11.000000Z"
  }
}