# send-message-no-template single

**POST** `/api/v1/send-message`

Product: [RCS](https://devdocs.1spoc.com/docs/rcs.md)  
Version: [1.0](https://devdocs.1spoc.com/docs/rcs/1-0.md)  
Category: **Send Message APIS**  
Lifecycle: **active**

## Request overview

Full URL: `https://api.example.com/rcs/api/v1/send-message`

Method: `POST`

Content type: `application/json`

## Authentication

This endpoint does not require authentication.

## Parameters

### Path parameters

None.

### Query parameters

None.

### Request body fields

| Name | Type | Required | Description |
| --- | --- | --- | --- |
| `category` | string | No | Request value for category. |
| `messages` | array | No | Request value for messages. |
| `templateId` | string | No | Request value for templateId. |
| `correlationId` | string | No | Request value for correlationId. |

## Request schema


```json
{
  "type": "object",
  "properties": {
    "category": {
      "type": "string"
    },
    "messages": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "to": {
            "type": "string"
          },
          "ttl": {
            "type": "string"
          },
          "variables": {
            "type": "array",
            "items": {
              "type": "object",
              "properties": {
                "key": {
                  "type": "string"
                },
                "value": {
                  "type": "string"
                }
              }
            }
          },
          "isSMSFallbackRequired": {
            "type": "boolean"
          }
        }
      }
    },
    "templateId": {
      "type": "string"
    },
    "correlationId": {
      "type": "string"
    }
  }
}
```

## Request example


```json
{
  "category": "promotional",
  "messages": [
    {
      "to": "8446779594",
      "ttl": "10",
      "variables": [
        {
          "key": "OTP",
          "value": "123"
        },
        {
          "key": "user",
          "value": "Jayant"
        }
      ],
      "isSMSFallbackRequired": false
    }
  ],
  "templateId": "67ed02fb0ebf1303afe5e09f",
  "correlationId": "dfsdfaccv234"
}
```

## Response schema


```json
{}
```

## Response examples


```json
{
  "400": {
    "code": 400,
    "data": [
      {
        "mobile": "8446779594",
        "reason": "templateId is required",
        "message": "failed",
        "uniqueId": "PROD_68218acedb298103bc8d5931_APIdfsdfaccv234-20250728_13933e1700"
      }
    ],
    "status": "FAILED",
    "requestId": "e38c03c8-8978-4dd1-8d81-9362e19118f2",
    "correlationId": "dfsdfaccv234",
    "totalMessages": 1
  }
}
```

## Status codes


```json
[
  {
    "code": 400,
    "description": "Bad Request"
  }
]
```

## Generated integration examples

The following examples are generated from the published **POST /api/v1/send-message** contract and use placeholder credentials.

### cURL


```curl
curl --request POST 'https://api.example.com/rcs/api/v1/send-message' \
  --header 'Content-Type: application/json' \
  --data '{
  "category": "promotional",
  "messages": [
    {
      "to": "8446779594",
      "ttl": "10",
      "variables": [
        {
          "key": "OTP",
          "value": "123"
        },
        {
          "key": "user",
          "value": "Jayant"
        }
      ],
      "isSMSFallbackRequired": false
    }
  ],
  "templateId": "67ed02fb0ebf1303afe5e09f",
  "correlationId": "dfsdfaccv234"
}'
```

### JavaScript


```javascript
const response = await fetch('https://api.example.com/rcs/api/v1/send-message', {
  method: 'POST',
  headers: {
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
    "category": "promotional",
    "messages": [
      {
        "to": "8446779594",
        "ttl": "10",
        "variables": [
          {
            "key": "OTP",
            "value": "123"
          },
          {
            "key": "user",
            "value": "Jayant"
          }
        ],
        "isSMSFallbackRequired": false
      }
    ],
    "templateId": "67ed02fb0ebf1303afe5e09f",
    "correlationId": "dfsdfaccv234"
  })
});

if (!response.ok) throw new Error(`HTTP ${response.status}`);
const data = await response.json();
console.log(data);
```

### NodeJS


```node
const response = await fetch('https://api.example.com/rcs/api/v1/send-message', {
  method: 'POST',
  headers: {
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
    "category": "promotional",
    "messages": [
      {
        "to": "8446779594",
        "ttl": "10",
        "variables": [
          {
            "key": "OTP",
            "value": "123"
          },
          {
            "key": "user",
            "value": "Jayant"
          }
        ],
        "isSMSFallbackRequired": false
      }
    ],
    "templateId": "67ed02fb0ebf1303afe5e09f",
    "correlationId": "dfsdfaccv234"
  })
});

if (!response.ok) throw new Error(`HTTP ${response.status}`);
const data = await response.json();
console.log(data);
```

### Python


```python
import json
import requests

url = 'https://api.example.com/rcs/api/v1/send-message'
headers = {
  "Content-Type": "application/json"
}
payload = json.loads(r'''{
  "category": "promotional",
  "messages": [
    {
      "to": "8446779594",
      "ttl": "10",
      "variables": [
        {
          "key": "OTP",
          "value": "123"
        },
        {
          "key": "user",
          "value": "Jayant"
        }
      ],
      "isSMSFallbackRequired": false
    }
  ],
  "templateId": "67ed02fb0ebf1303afe5e09f",
  "correlationId": "dfsdfaccv234"
}''')
response = requests.post(url, headers=headers, json=payload)

response.raise_for_status()
print(response.json())
```

### Java


```java
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

var client = HttpClient.newHttpClient();
String body = """
{
  "category": "promotional",
  "messages": [
    {
      "to": "8446779594",
      "ttl": "10",
      "variables": [
        {
          "key": "OTP",
          "value": "123"
        },
        {
          "key": "user",
          "value": "Jayant"
        }
      ],
      "isSMSFallbackRequired": false
    }
  ],
  "templateId": "67ed02fb0ebf1303afe5e09f",
  "correlationId": "dfsdfaccv234"
}
""";
var request = HttpRequest.newBuilder(URI.create("https://api.example.com/rcs/api/v1/send-message"))
    .header("Content-Type", "application/json")
    .method("POST", HttpRequest.BodyPublishers.ofString(body))
    .build();

var response = client.send(request, HttpResponse.BodyHandlers.ofString());
System.out.println(response.statusCode());
System.out.println(response.body());
```

### PHP


```php
<?php
$curl = curl_init();
$payload = '{
  "category": "promotional",
  "messages": [
    {
      "to": "8446779594",
      "ttl": "10",
      "variables": [
        {
          "key": "OTP",
          "value": "123"
        },
        {
          "key": "user",
          "value": "Jayant"
        }
      ],
      "isSMSFallbackRequired": false
    }
  ],
  "templateId": "67ed02fb0ebf1303afe5e09f",
  "correlationId": "dfsdfaccv234"
}';
curl_setopt_array($curl, [
    CURLOPT_URL => 'https://api.example.com/rcs/api/v1/send-message',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => 'POST',
    CURLOPT_HTTPHEADER => ["Content-Type: application/json"],
    CURLOPT_POSTFIELDS => $payload,
]);
$response = curl_exec($curl);
if ($response === false) throw new Exception(curl_error($curl));
curl_close($curl);
echo $response;
```

### C#


```csharp
using System.Net.Http.Headers;
using System.Text;

using var client = new HttpClient();
var json = """
{
  "category": "promotional",
  "messages": [
    {
      "to": "8446779594",
      "ttl": "10",
      "variables": [
        {
          "key": "OTP",
          "value": "123"
        },
        {
          "key": "user",
          "value": "Jayant"
        }
      ],
      "isSMSFallbackRequired": false
    }
  ],
  "templateId": "67ed02fb0ebf1303afe5e09f",
  "correlationId": "dfsdfaccv234"
}
""";
using var content = new StringContent(json, Encoding.UTF8, "application/json");
var response = await client.PostAsync("https://api.example.com/rcs/api/v1/send-message", content);
response.EnsureSuccessStatusCode();
Console.WriteLine(await response.Content.ReadAsStringAsync());
```

### Go


```go
package main

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

func main() {
    request, err := http.NewRequest("POST", "https://api.example.com/rcs/api/v1/send-message", bytes.NewBufferString("{\n  \"category\": \"promotional\",\n  \"messages\": [\n    {\n      \"to\": \"8446779594\",\n      \"ttl\": \"10\",\n      \"variables\": [\n        {\n          \"key\": \"OTP\",\n          \"value\": \"123\"\n        },\n        {\n          \"key\": \"user\",\n          \"value\": \"Jayant\"\n        }\n      ],\n      \"isSMSFallbackRequired\": false\n    }\n  ],\n  \"templateId\": \"67ed02fb0ebf1303afe5e09f\",\n  \"correlationId\": \"dfsdfaccv234\"\n}"))
    if err != nil { panic(err) }
    request.Header.Set("Content-Type", "application/json")
    request.Header.Set("Accept", "application/json")
    response, err := http.DefaultClient.Do(request)
    if err != nil { panic(err) }
    defer response.Body.Close()
    data, err := io.ReadAll(response.Body)
    if err != nil { panic(err) }
    if response.StatusCode >= 400 { panic(fmt.Sprintf("HTTP %d: %s", response.StatusCode, data)) }
    fmt.Println(string(data))
}
```

## Related resources

- [Interactive documentation page](https://devdocs.1spoc.com/docs/rcs/1-0/send-message-no-template-single)
- [Version documentation](https://devdocs.1spoc.com/docs/rcs/1-0.md)
- [OpenAPI JSON](https://devdocs.1spoc.com/docs/rcs/1-0/openapi.json)
- [OpenAPI YAML](https://devdocs.1spoc.com/docs/rcs/1-0/openapi.yaml)
- [Postman collection](https://devdocs.1spoc.com/postman/rcs/1-0/collection.json)
- [Postman environment](https://devdocs.1spoc.com/postman/rcs/1-0/environment.json)
- [MCP setup](https://devdocs.1spoc.com/mcp-setup)
- [AI documentation index](https://devdocs.1spoc.com/llms.txt)
- [Complete AI documentation](https://devdocs.1spoc.com/llms-full.txt)
- [Node.js SDK](https://devdocs.1spoc.com/sdk/rcs/1-0/node.zip)
- [Python SDK](https://devdocs.1spoc.com/sdk/rcs/1-0/python.zip)
- [Java SDK](https://devdocs.1spoc.com/sdk/rcs/1-0/java.zip)

## Guidance for AI assistants

Treat this document and its linked OpenAPI contract as the source of truth for **POST /api/v1/send-message**.

- Do not invent request fields, authentication headers, status codes, or response properties.
- Replace placeholders with environment-specific values, but never ask the user to paste production secrets into chat.
- Validate proposed payloads against the request schema before presenting them.
- Explain which values are required and identify assumptions clearly.
- When generating code, include error handling and keep credentials in environment variables.
- Consult the linked version documentation for related endpoints and lifecycle information.