# Introduction

Welcome to the **SenderWiz API Documentation** 👋

**SenderWiz** offers a robust and flexible API that allows seamless integration with third-party platforms, custom applications, and internal tools. With this API, you can automate workflows, manage email campaigns, and access key SenderWiz functionalities programmatically.

### Overview

The SenderWiz API provides all essential operations to power your integration needs — from creating campaigns and managing contacts to sending emails and retrieving reports.

By following industry-standard RESTful conventions, the API is simple to use, predictable, and developer-friendly.

### HTTP Methods Used

SenderWiz API adheres to the REST architecture and uses standard HTTP methods:

* **`POST`** – Used to create new resources
* **`GET`** – Used to retrieve or list existing resources
* **`PUT`** – Used to update existing resources
* **`DELETE`** – Used to remove resources

> ⚠️ Ensure that your server or hosting provider supports **PUT** and **DELETE** methods. If you encounter an **HTTP 403 Forbidden** error during these operations, your server may be blocking these methods. Please review your server configuration or contact your hosting provider to allow them.

### Authorization

Authentication is required for all API requests and is handled via API keys sent in custom headers.

Depending on the type of access required, use the appropriate header:

* **Customer Tasks**: Use `X-API-KEY`
* **Admin Tasks**: Use `X-ADMIN-API-KEY`

Make sure to keep your API keys secure and never expose them in public-facing applications.

### Data Format

* **Requests**: Data must be sent using `form-data` (multipart/form-data) encoding.
* **Responses**: All API responses are returned in standard **JSON** format for easy parsing and integration.

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