Send Text Safe

cURL

curl --request POST \
  --url https://app.hypersender.com/api/whatsapp/v1/{instance}/send-text-safe \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "chatId": "[email protected]",
  "text": "Hi there!",
  "reply_to": "string",
  "link_preview": false,
  "link_preview_high_quality": false
}
'

import requests

url = "https://app.hypersender.com/api/whatsapp/v1/{instance}/send-text-safe"

payload = {
    "chatId": "[email protected]",
    "text": "Hi there!",
    "reply_to": "string",
    "link_preview": False,
    "link_preview_high_quality": False
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    chatId: '[email protected]',
    text: 'Hi there!',
    reply_to: 'string',
    link_preview: false,
    link_preview_high_quality: false
  })
};

fetch('https://app.hypersender.com/api/whatsapp/v1/{instance}/send-text-safe', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://app.hypersender.com/api/whatsapp/v1/{instance}/send-text-safe",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'chatId' => '[email protected]',
    'text' => 'Hi there!',
    'reply_to' => 'string',
    'link_preview' => false,
    'link_preview_high_quality' => false
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://app.hypersender.com/api/whatsapp/v1/{instance}/send-text-safe"

	payload := strings.NewReader("{\n  \"chatId\": \"[email protected]\",\n  \"text\": \"Hi there!\",\n  \"reply_to\": \"string\",\n  \"link_preview\": false,\n  \"link_preview_high_quality\": false\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://app.hypersender.com/api/whatsapp/v1/{instance}/send-text-safe")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"chatId\": \"[email protected]\",\n  \"text\": \"Hi there!\",\n  \"reply_to\": \"string\",\n  \"link_preview\": false,\n  \"link_preview_high_quality\": false\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.hypersender.com/api/whatsapp/v1/{instance}/send-text-safe")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"chatId\": \"[email protected]\",\n  \"text\": \"Hi there!\",\n  \"reply_to\": \"string\",\n  \"link_preview\": false,\n  \"link_preview_high_quality\": false\n}"

response = http.request(request)
puts response.read_body

{
  "key": {
    "remoteJid": "[email protected]",
    "fromMe": true,
    "id": "3EB0CD3810439716606547"
  },
  "message": {
    "extendedTextMessage": {
      "text": "Hi there!"
    }
  },
  "messageTimestamp": 1741359489,
  "status": "PENDING"
}

POST

{instance}

send-text-safe

cURL

curl --request POST \
  --url https://app.hypersender.com/api/whatsapp/v1/{instance}/send-text-safe \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "chatId": "[email protected]",
  "text": "Hi there!",
  "reply_to": "string",
  "link_preview": false,
  "link_preview_high_quality": false
}
'

import requests

url = "https://app.hypersender.com/api/whatsapp/v1/{instance}/send-text-safe"

payload = {
    "chatId": "[email protected]",
    "text": "Hi there!",
    "reply_to": "string",
    "link_preview": False,
    "link_preview_high_quality": False
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    chatId: '[email protected]',
    text: 'Hi there!',
    reply_to: 'string',
    link_preview: false,
    link_preview_high_quality: false
  })
};

fetch('https://app.hypersender.com/api/whatsapp/v1/{instance}/send-text-safe', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://app.hypersender.com/api/whatsapp/v1/{instance}/send-text-safe",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'chatId' => '[email protected]',
    'text' => 'Hi there!',
    'reply_to' => 'string',
    'link_preview' => false,
    'link_preview_high_quality' => false
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://app.hypersender.com/api/whatsapp/v1/{instance}/send-text-safe"

	payload := strings.NewReader("{\n  \"chatId\": \"[email protected]\",\n  \"text\": \"Hi there!\",\n  \"reply_to\": \"string\",\n  \"link_preview\": false,\n  \"link_preview_high_quality\": false\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://app.hypersender.com/api/whatsapp/v1/{instance}/send-text-safe")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"chatId\": \"[email protected]\",\n  \"text\": \"Hi there!\",\n  \"reply_to\": \"string\",\n  \"link_preview\": false,\n  \"link_preview_high_quality\": false\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.hypersender.com/api/whatsapp/v1/{instance}/send-text-safe")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"chatId\": \"[email protected]\",\n  \"text\": \"Hi there!\",\n  \"reply_to\": \"string\",\n  \"link_preview\": false,\n  \"link_preview_high_quality\": false\n}"

response = http.request(request)
puts response.read_body

{
  "key": {
    "remoteJid": "[email protected]",
    "fromMe": true,
    "id": "3EB0CD3810439716606547"
  },
  "message": {
    "extendedTextMessage": {
      "text": "Hi there!"
    }
  },
  "messageTimestamp": 1741359489,
  "status": "PENDING"
}

Send Text Message Safe

The Send Text Safe endpoint functions similarly to the standard send-text endpoint but with enhanced safety features designed specifically to protect your WhatsApp number from being blocked or flagged for suspicious activity.

WhatsApp has strict policies against automated messaging, and using the standard send-text endpoint too frequently can lead to your number being flagged or blocked.
This endpoint is designed to mimic human behavior more closely, making it less likely for WhatsApp to detect automated activity.

It:

Automatically calculates the appropriate delay between messages based on text length, by adding a few seconds for thinking/reviewing before sending
Simulates typing behavior in WhatsApp before sending the message
Significantly reduces the risk of your WhatsApp number being blocked due to automated messaging patterns
Reduces the risk of being flagged for automated behavior

Sending link preview

If the text has a link - it generates a preview for that link. You can adjust the behaviour by setting

link_preview: true - to enable link preview
link_preview_high_quality: true - to enable high-quality link preview

You can still send messages directly with send-text endpoint, but we highly recommend using this endpoint for regular messaging operations to maintain a more natural communication pattern, and keep your whatsapp number safe from being blocked.

Quick Demo

Learn how to use Hypersender whatsapp API to send a message using Postman: Demo Link

Authorizations

Authorization

string

header

required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Headers

string

application/json

Example:

"application/json"

Content-Type

string

application/json

Example:

"application/json"

Path Parameters

instance

string

required

Instance UUID copied from hypersender dashboard

Example:

"{{ instance_id }}"

Body

application/json

chatId

string

required

Contact number - learn what is chatId

Example:

"[email protected]"

text

string

required

Text Message

reply_to

string

Reply to message id

link_preview

boolean

Link Preview

link_preview_high_quality

boolean

Link Preview High Quality

Response

Successful response

key

object

Show child attributes

message

object

Show child attributes

messageTimestamp

string

status

string

Overview

WhatsApp API

Whatsapp Webhooks

Send Text Message Safe

It:

Sending link preview

Quick Demo

Authorizations

Headers

Path Parameters

Body

Response

​Send Text Message Safe

​It:

​Sending link preview

​Quick Demo

Authorizations

Headers

Path Parameters

Body

Response

Send Text Message Safe

It:

Sending link preview

Quick Demo