---
title: How to choose the right subdomain for my API integration?
slug: business-phone-system/how-to-choose-the-right-subdomain-for-my-api-integration
docTags: 
createdAt: 2025-10-10T16:08:06.327Z
---

## Choosing the Right Subdomain

Exotel operates on multiple clusters. Your account’s subdomain depends on the cluster it was created in.

**Singapore cluster**

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If your Exotel account URL is `my.exotel.com`, use this subdomain.
:::

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Subdomain: `api.exotel.com`
:::

**Mumbai cluster**

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If your Exotel account URL is `my.in.exotel.com`, use this subdomain.
:::

:::Paragraph{listStyleType="disc" listStart="2" indent="2"}
Subdomain: `api.in.exotel.com`
:::