> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.send-2.com/llms.txt.
> For full documentation content, see https://docs.send-2.com/llms-full.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.send-2.com/_mcp/server.

# Introduction

This **SMS API** collection provides a streamlined interface for interacting with our SMS messaging service.

***

## Authentication

All requests are authenticated using a **Bearer token**, passed in the `Authorization` header in the following format:

```javascript
Authorization: Bearer <your_token>

```

```python
Authorization: Bearer <your_token>

```

```java
Authorization: Bearer <your_token>

```

```curl
Authorization: Bearer <your_token>

```

```bash
Authorization: Bearer <your_token>

```

**Obtain your API token** from your account dashboard or via your account administrator.

> **Security tip:** Always store your token as a **secret** variable type in your environment to prevent it from being exposed in logs etc.