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Intro

Explore the IntelSend Communication API in less than 5 minutes 🚀

Send messages via SMS, Email, or Voice with powerful tracking, scheduling, and templating features.

Getting Started​

Get started by choosing a communication API method.
Or jump right in and try the API with IntelSend.

What You'll Need
  • An API Key to authenticate requests
  • Keep your API key secure and never expose it publicly

Choose an API Method​

IntelSend offers three communication channels:

  • 📧 Email API → Send single or bulk emails with custom content, HTML, scheduling, and tracking.
  • 📱 SMS API → Send single or bulk SMS messages with templates, variables, and opt-out handling.
  • 🎤 Voice API → Send voice messages with text-to-speech, live and machine call detection, and retry options.

Email API Example​

Send a single email using the Email API. You can customize:

  • Subject
  • Plain text body
  • HTML body
  • Scheduling
  • Tracking with a unique uid
curl --location 'https://api.intelsend.com/send-msg' \
--header 'x-api-key: bUl1HuJu1x6VJo7kLw5qY4DmtJXVaQhf8IyaLPnF' \
--header 'Content-Type: application/json' \
--header 'Authorization: dedede' \
--data-raw '{
    "channel":"email",
    "uid": "12456",
    "to": "jaspreetsingh09912@gmail.com",
    "from": "info@intelsend.com",
    "template-id": "6761da1971c8c340961488c6",
    body: "html body"
    "params": {
        "NAME": "Riddhi",
        "AMOUNT":"$ 1234"
    }
}'
curl --location 'https://api.intelsend.com/send-msg' \
--header 'x-api-key: bUl1HuJu1x6VJo7kLw5qY4DmtJXVaQhf8IyaLPnF' \
--header 'Content-Type: application/json' \
--header 'Authorization: dedede' \
--data '{
    "channel": "sms",
    "uid": "12456",
    "to": "3233933379",
    "from": "9498671145",
    "template-id": "688b634bf19b87633060398f",
    "params": {
        "MEMBER_NAME": "Deepak Kumar Yadav",
        "MEMBERSHIP_LEVEL": "Gold",
        "MEMBERSHIP_ID": "MEM123410",
        "BALANCE": 250.00,
        "POINTS": 250,
        "JOIN_DATE": "2025-07-31",
        "FILE_URL": "https://voxtelesys-documentation.s3.ap-south-1.amazonaws.com/passes/0ec70aae-a257-4fb3-a34d-be94a0bd904b.pkpass"
    }
}'
curl --location 'https://api.intelsend.com/send-msg' \
--header 'x-api-key: bUl1HuJu1x6VJo7kLw5qY4DmtJXVaQhf8IyaLPnF' \
--header 'Content-Type: application/json' \
--header 'Authorization: dedede' \
--data '{
    "channel":"voice",
    "uid": "1245346",
    "to": "9495415188",
    "from": "9498671145",
    "template-id": "67a4868273af5742036b5f01",

    "params": {
        "NAME": "Riddhi"
    }
}'