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POST
/
transactional_messages
/
send_rcs_text
Send an RCS Text Message
curl --request POST \
  --url https://api.v3.tatango.com/transactional_messages/send_rcs_text \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "phoneNumber": "+14803585269",
  "webhookUrl": "https://webhook.site/e5b3a6c2-ffe1-4efc-922c-2f6e8aaaa49f",
  "rcsPayload": {
    "text": "Hello world, this my RCS Text message."
  },
  "smsFailover": "Hello world, this is my SMS fallback in case RCS delivery fails."
}
'
{
  "message": "Request accepted, sending message to recipient",
  "transactionId": "019687e1-1b54-70f4-a68a-60af7fa776f4"
}
RCS (Rich Communication Services) provides enhanced messaging features compared to SMS and MMS.RCS Message Features:
  • Character Limit: Up to 3,000 characters
  • Rich Text Features: Bold, italic, underline, strikethrough and emojis
  • Fallback: Automatic SMS fallback if RCS delivery fails
Requirements: Valid U.S. phone number with RCS support

Authorizations

​
x-api-key
string
header
required

Your Tatango API key. This is required for all requests to the API. You can find your API key in the Tatango App under My Account -> API -> Create API Key.

Body

application/json

The RCS Text message request with SMS fallback.

​
phoneNumber
string
required

The destination phone number. Can be provided in any format (e.g., +1 555-123-4567, (555) 123-4567, 5551234567) but must be a valid U.S. or Canadian phone number.

​
webhookUrl
string
required

URL where webhooks will be sent. Must be a valid HTTPS URL.

Maximum string length: 255
​
rcsPayload
object
required

RCS message payload, only text is supported for this endpoint.

​
smsFailover
string
required

SMS fallback message content used when primary delivery method fails. Must contain only GSM 7-bit characters.

Required string length: 1 - 160

Response

RCS message accepted.

​
message
string
required

Success message indicating the request was accepted.

​
transactionId
string
required

Unique transaction identifier for tracking the message.