Getting Started

httpSMS is an open-source service that converts your Android phone into an SMS Gateway so you can send and receive SMS messages using an intuitive HTTP API with support for end-to-end encryption.

Authentication

API requests to httpSMS are authenticated using API keys in the x-api-key header. Any request that doesn't include an API key will return a 401 (Unauthorized) response.

You can get your API key from the dashboard at https://httpsms.com/settings

Install the Android App

To send and receive SMS messages using your android phone, you will need to download and install our android app on your phone so it can be triggered to send an SMS message when you make a request to the HTTP SMS API.

Android App 👉 https://github.com/NdoleStudio/httpsms/releases/latest/download/HttpSms.apk

Send an SMS

To send an SMS message using an android phone, send an authenticated POST request to the https://api.httpsms.com/v1/messages/send endpoint.

Send an SMS message

post

Add a new SMS message to be sent by your Android phone

Authorizations

x-api-KeystringRequired

Body

contentstringRequiredExample: This is a sample text message

encryptedbooleanOptional

Encrypted is an optional parameter used to determine if the content is end-to-end encrypted. Make sure to set the encryption key on the httpSMS mobile app

fromstringRequiredExample: +18005550199

request_idstringOptional

RequestID is an optional parameter used to track a request from the client's perspective

Example: 153554b5-ae44-44a0-8f4f-7bbac5657ad4

send_atstringOptional

SendAt is an optional parameter used to schedule a message to be sent in the future. The time is considered to be in your profile's local timezone and you can queue messages for up to 20 days (480 hours) in the future.

Example: 2025-12-19T16:39:57-08:00

tostringRequiredExample: +18005550100

Responses

200

application/json

400

Bad Request

application/json

401

Unauthorized

application/json

422

Unprocessable Entity

application/json

500

Internal Server Error

application/json

post

/messages/send

POST /v1/messages/send HTTP/1.1
Host: api.httpsms.com
x-api-Key: YOUR_API_KEY
Content-Type: application/json
Accept: */*
Content-Length: 193

{
  "content": "This is a sample text message",
  "encrypted": false,
  "from": "+18005550199",
  "request_id": "153554b5-ae44-44a0-8f4f-7bbac5657ad4",
  "send_at": "2025-12-19T16:39:57-08:00",
  "to": "+18005550100"
}

{
  "data": {
    "contact": "+18005550100",
    "content": "This is a sample text message",
    "created_at": "2022-06-05T14:26:02.302718+03:00",
    "delivered_at": "2022-06-05T14:26:09.527976+03:00",
    "encrypted": false,
    "expired_at": "2022-06-05T14:26:09.527976+03:00",
    "failed_at": "2022-06-05T14:26:09.527976+03:00",
    "failure_reason": "UNKNOWN",
    "id": "32343a19-da5e-4b1b-a767-3298a73703cb",
    "last_attempted_at": "2022-06-05T14:26:09.527976+03:00",
    "max_send_attempts": 1,
    "order_timestamp": "2022-06-05T14:26:09.527976+03:00",
    "owner": "+18005550199",
    "received_at": "2022-06-05T14:26:09.527976+03:00",
    "request_id": "153554b5-ae44-44a0-8f4f-7bbac5657ad4",
    "request_received_at": "2022-06-05T14:26:01.520828+03:00",
    "scheduled_at": "2022-06-05T14:26:09.527976+03:00",
    "scheduled_send_time": "2022-06-05T14:26:09.527976+03:00",
    "send_attempt_count": 0,
    "send_time": 133414,
    "sent_at": "2022-06-05T14:26:09.527976+03:00",
    "sim": "DEFAULT",
    "status": "pending",
    "type": "mobile-terminated",
    "updated_at": "2022-06-05T14:26:10.303278+03:00",
    "user_id": "WB7DRDWrJZRGbYrv2CKGkqbzvqdC"
  },
  "message": "Request handled successfully",
  "status": "success"
}

You can also use the code samples below to send an SMS message using our API on your favorite programing language.

// initialize guzzle client https://github.com/guzzle/guzzle
$client = new GuzzleHttp\Client();

$apiKey = "Get API Key from https://httpsms.com/settings";

$res = $client->request('POST', 'https://api.httpsms.com/v1/messages/send', [
  'headers' => [
    'x-api-key' => $apiKey,
  ],
  'json'    => [
    'content' => 'This is a sample text message',
    'from'    => "+18005550199",
    'to'      => '+18005550100'
  ]
]);

echo $res->getBody();

let apiKey = "Get API Key from https://httpsms.com/settings";

fetch('https://api.httpsms.com/v1/messages/send', {
    method: 'POST',
    headers: {
        'x-api-key': apiKey,
        'Accept': 'application/json',
        'Content-Type': 'application/json'
    },
    body: JSON.stringify({
        "content": "This is a sample text message",
        "from": "+18005550199",
        "to": "+18005550100"
    })
})
.then(res => res.json())
.then((data) => console.log(data));

import requests
import json

api_key = "Get API Key from https://httpsms.com/settings"

url = 'https://api.httpsms.com/v1/messages/send'

headers = {
    'x-api-key': api_key,
    'Accept': 'application/json',
    'Content-Type': 'application/json'
}

payload = {
    "content": "This is a sample text message",
    "from": "+18005550199",
    "to": "+18005550100"
}

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

print(response.json())

curl --location --request POST 'https://api.httpsms.com/v1/messages/send' \
--header 'x-api-key: Get API Key from https://httpsms.com/settings' \
--header 'Content-Type: application/json' \
--data-raw '{
    "from": "+18005550199",
    "to": "+18005550100",
    "content": "This is a sample text message"
}'

import "github.com/NdoleStudio/httpsms-go"

client := htpsms.New(htpsms.WithAPIKey(/* API Key from https://httpsms.com/settings */))

client.Messages.Send(context.Background(), &httpsms.MessageSendParams{
    Content: "This is a sample text message",
    From:    "+18005550199",
    To:      "+18005550100",
})

var client = new HttpClient();
client.DefaultRequestHeaders.Add("x-api-key", ""/* Get API Key from https://httpsms.com/settings */);

var response = await client.PostAsync(
    "https://api.httpsms.com/v1/messages/send",
    new StringContent(
        JsonSerializer.Serialize(new {
            from = "+18005550199",
            To = "+18005550100",
            Content = "This is a sample text message",
        }),
        Encoding.UTF8,
        "application/json"
    )
);

Console.WriteLine(await response.Content.ReadAsStringAsync());

var client = HttpClient.newHttpClient();

var apiKey = "Get API Key from https://httpsms.com/settings";

JSONObject request = new JSONObject();
request.put("content", "This is a sample text message");
request.put("from", "+18005550199")
request.put("to", "+18005550100")

// create a request
var request = HttpRequest.newBuilder()
  .uri(URI.create("https://api.httpsms.com/v1/messages/send"))
  .header("accept", "application/json")
  .header("x-api-key", apiKey)
  .setEntity(new StringEntity(request.toString()))
  .POST()
  .build();

// use the client to send the request
var response = client.send(request, new JsonBodyHandler<>(APOD.class));

// the response:
System.out.println(response.body().get());

Install

The best way to interact with the httpSMS API is by using one of our official SDK client libraries:

npm install httpsms
# or
yarn install httpsms

NextIntroduction

Last updated 9 months ago

hashtagAuthentication

hashtagInstall the Android App

hashtagSend an SMS

hashtagSend an SMS message

hashtagInstall

Authentication

Install the Android App

Send an SMS

Send an SMS message

Install