Chatous Send Message API
Send a message into a Chatous chat from your own account. Takes your connect.sid session cookie, the chat id (from chatous-poll-events or chatous-get-account-state) and the message text, up to 2000 characters. Returns whether Chatous acknowledged the send. The message is delivered to the other person immediately.
Last updated
How to call it
Send one POST to api.upapi.io/chatous-send-message.post with your key in the X-Api-Key header and the parameters below as a JSON body. Each call spends 1 weighted unit of your monthly quota. The operation times out after 30 seconds. Responses are not cached; every call runs the operation.
POST https://api.upapi.io/chatous-send-message.post
Chatous Send Message API reference
Request parameters
- chatId
- stringrequired — The chat to send into, from chatous-poll-events or -get-account-state.
- message
- stringrequired — The message text. It is delivered to a real person on Chatous.
- proxyUrl
- string — Optional proxy URL.
- connectSid
- stringrequired — The account's connect.sid cookie value.
Response fields
- sent
- booleanrequired — True only when Chatous acknowledged the message with return_code 0.
- chatId
- stringrequired
- sentAt
- stringrequired
- elapsedMs
- integerrequired
Example request and response
The example response is generated from this operation’s published output schema — it shows the shape and field names, not values from a recorded call.
{
"chatId": "example",
"message": "example",
"connectSid": "example"
}{
"sent": false,
"chatId": "example",
"sentAt": "example",
"elapsedMs": 1
}Code snippets
cURL
curl -X POST https://api.upapi.io/chatous-send-message.post \
-H 'Content-Type: application/json' \
-H 'x-api-key: YOUR_API_KEY' \
-d '{ "chatId": "example", "message": "example", "connectSid": "example" }'JavaScript
const response = await fetch('https://api.upapi.io/chatous-send-message.post', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
'x-api-key': 'YOUR_API_KEY',
},
body: JSON.stringify({
"chatId": "example",
"message": "example",
"connectSid": "example"
}),
});
const data = await response.json();
console.log(data);Python
import requests
response = requests.post(
'https://api.upapi.io/chatous-send-message.post',
headers={
'Content-Type': 'application/json',
'x-api-key': 'YOUR_API_KEY',
},
json={
"chatId": "example",
"message": "example",
"connectSid": "example"
},
)
print(response.json())Go
package main
import (
"bytes"
"encoding/json"
"fmt"
"io"
"net/http"
)
func main() {
payload := []byte(`{ "chatId": "example", "message": "example", "connectSid": "example" }`)
req, _ := http.NewRequest("POST", "https://api.upapi.io/chatous-send-message.post", bytes.NewBuffer(payload))
req.Header.Set("Content-Type", "application/json")
req.Header.Set("x-api-key", "YOUR_API_KEY")
client := &http.Client{}
resp, err := client.Do(req)
if err != nil {
panic(err)
}
defer resp.Body.Close()
body, _ := io.ReadAll(resp.Body)
var result map[string]any
json.Unmarshal(body, &result)
fmt.Println(result)
}PHP
<?php
$payload = json_encode([
'chatId' => 'example',
'message' => 'example',
'connectSid' => 'example',
]);
$ch = curl_init('https://api.upapi.io/chatous-send-message.post');
curl_setopt_array($ch, [
CURLOPT_POST => true,
CURLOPT_POSTFIELDS => $payload,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => [
'Content-Type: application/json',
'x-api-key: YOUR_API_KEY',
],
]);
$response = curl_exec($ch);
curl_close($ch);
$data = json_decode($response, true);
var_dump($data);Ruby
require 'net/http'
require 'uri'
require 'json'
uri = URI('https://api.upapi.io/chatous-send-message.post')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = uri.scheme == 'https'
request = Net::HTTP::Post.new(uri.path)
request['Content-Type'] = 'application/json'
request['x-api-key'] = 'YOUR_API_KEY'
request.body = { "chatId": "example", "message": "example", "connectSid": "example" }.to_json
response = http.request(request)
puts JSON.parse(response.body)Java
import okhttp3.*;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.Map;
OkHttpClient client = new OkHttpClient();
ObjectMapper mapper = new ObjectMapper();
String json = "{ \"chatId\": \"example\", \"message\": \"example\", \"connectSid\": \"example\" }";
RequestBody body = RequestBody.create(json, MediaType.get("application/json"));
Request request = new Request.Builder()
.url("https://api.upapi.io/chatous-send-message.post")
.post(body)
.addHeader("Content-Type", "application/json")
.addHeader("x-api-key", "YOUR_API_KEY")
.build();
try (Response response = client.newCall(request).execute()) {
Map<?, ?> result = mapper.readValue(response.body().string(), Map.class);
System.out.println(result);
}C#
using System.Net.Http;
using System.Net.Http.Json;
using System.Text.Json;
using var client = new HttpClient();
client.DefaultRequestHeaders.Add("x-api-key", "YOUR_API_KEY");
var payload = JsonSerializer.Deserialize<object>("{ \"chatId\": \"example\", \"message\": \"example\", \"connectSid\": \"example\" }");
var response = await client.PostAsJsonAsync("https://api.upapi.io/chatous-send-message.post", payload);
var result = await response.Content.ReadFromJsonAsync<JsonElement>();
Console.WriteLine(result);Frequently asked questions
How much does the Chatous Send Message API cost per call?
Each call spends 1 weighted unit of your plan's monthly quota. Full pricing is at https://upapi.io/pricing.
How do I authenticate to the Chatous Send Message API?
Send your key in the X-Api-Key header. A free guest key is available without creating an account.
Are Chatous Send Message API responses cached?
No — every call runs the operation live; responses are not cached.