Send a Message

Send an SMS message from a registered phone to a recipient.

Endpoint

POST /api/v1/messages Requires authentication (X-API-Key)

Request Body

Field	Type
from	string (E.164, must be a registered phone)
to	string (E.164, recipient number)
content	string (message text)
request_id	string (optional, for idempotency)

Common Error Responses

403 FORBIDDEN

Sender phone is not registered to your account.

402 INSUFFICIENT_CREDITS

Insufficient credits. Your group balance is 0.

409 DUPLICATE_REQUEST

A message with this request_id already exists.

Code Samples

curl -X POST https://api.palmtext.com/api/v1/messages \
  -H 'X-API-Key: YOUR_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{"from": "+15550001234", "to": "+15550005678", "content": "Hello from PalmText!"}'

import requests

resp = requests.post(
    'https://api.palmtext.com/api/v1/messages',
    headers={'X-API-Key': 'YOUR_API_KEY'},
    json={
        'from': '+15550001234',
        'to': '+15550005678',
        'content': 'Hello from PalmText!'
    }
)
print(resp.json())

const res = await fetch('https://api.palmtext.com/api/v1/messages', {
  method: 'POST',
  headers: { 'X-API-Key': 'YOUR_API_KEY', 'Content-Type': 'application/json' },
  body: JSON.stringify({
    from: '+15550001234',
    to: '+15550005678',
    content: 'Hello from PalmText!'
  })
});
const data = await res.json();

<?php
$ch = curl_init();
curl_setopt_array($ch, [
  CURLOPT_URL => 'https://api.palmtext.com/api/v1/messages',
  CURLOPT_POST => true,
  CURLOPT_HTTPHEADER => ['X-API-Key: YOUR_API_KEY', 'Content-Type: application/json'],
  CURLOPT_POSTFIELDS => json_encode([
    'from' => '+15550001234',
    'to' => '+15550005678',
    'content' => 'Hello from PalmText!'
  ]),
  CURLOPT_RETURNTRANSFER => true,
]);
$resp = curl_exec($ch);
echo $resp;
curl_close($ch);

package main

import (
  "bytes"
  "encoding/json"
  "fmt"
  "net/http"
)

func main() {
  body, _ := json.Marshal(map[string]string{
    "from": "+15550001234",
    "to": "+15550005678",
    "content": "Hello from PalmText!",
  })
  req, _ := http.NewRequest("POST",
    "https://api.palmtext.com/api/v1/messages", bytes.NewBuffer(body))
  req.Header.Set("X-API-Key", "YOUR_API_KEY")
  req.Header.Set("Content-Type", "application/json")
  resp, _ := http.DefaultClient.Do(req)
  defer resp.Body.Close()
  fmt.Println(resp.Status)
}