---
updatedAt: 2025-12-14T07:46:30.000Z
agentTools:
  projectIndex: https://developer.clevertap.com/llms.txt
---

# Common API Components

Understand the common components used in CleverTap APIs.

CleverTap APIs contain several common components in their design and usage.\
This page details the common components available in CleverTap APIs.

# Region

The following table lists your API endpoint based on the region of your account:

| Region                  | API Endpoint             | CleverTap Dashboard URL                                                                              |
| :---------------------- | :----------------------- | :--------------------------------------------------------------------------------------------------- |
| India                   | `in1.api.clevertap.com`  | [https://in1.dashboard.clevertap.com/login.html](https://in1.dashboard.clevertap.com/login.html#/)   |
| Singapore               | `sg1.api.clevertap.com`  | [https://sg1.dashboard.clevertap.com/login.html](https://sg1.dashboard.clevertap.com/login.html#/)   |
| United States           | `us1.api.clevertap.com`  | [https://us1.dashboard.clevertap.com/login.html](https://us1.dashboard.clevertap.com/login.html#/)   |
| Indonesia               | `aps3.api.clevertap.com` | [https://aps3.dashboard.clevertap.com/login.html](https://aps3.dashboard.clevertap.com/login.html#/) |
| Middle East (UAE)       | `mec1.api.clevertap.com` | [https://mec1.dashboard.clevertap.com/login.html](https://mec1.dashboard.clevertap.com/login.html#/) |
| Europe (default region) | `api.clevertap.com`      | [https://eu1.dashboard.clevertap.com/login.html](https://eu1.dashboard.clevertap.com/login.html#/)   |

# API Headers

The API headers are used while processing the API request. The below headers are required when you use CleverTap APIs:

The `X-CleverTap-Account-Id` and `X-CleverTap-Passcode` authenticate the request.

| Header                 | Description                                             | Type   | Example Value                         |
| :--------------------- | :------------------------------------------------------ | :----- | :------------------------------------ |
| X-CleverTap-Account-Id | Your CleverTap Account ID.                              | string | "X-CleverTap-Account-Id: ACCOUNT\_ID" |
| X-CleverTap-Passcode   | Your CleverTap Account Passcode.                        | string | "X-CleverTap-Passcode: PASSCODE"      |
| Content-Type           | Request content-type is always set to application/json. | string | "Content-Type: application/json"      |

Refer to the [API Authentication](https://developer.clevertap.com/docs/authentication) to obtain the header values. To understand the common queries and concerns related to CleverTap APIs, refer to [API FAQs](https://developer.clevertap.com/docs/api-faqs).