---
title: "Create new calling extension settings for a specific app."
method: POST
path: "/crm/extensions/calling/2026-03/{appId}/settings"
tags: ["Basic"]
---

# Create new calling extension settings for a specific app.

`POST /crm/extensions/calling/2026-03/{appId}/settings`

## Request

- Base URL: `https://api.hubapi.com`
- URL: `https://api.hubapi.com/crm/extensions/calling/2026-03/{appId}/settings`
- Auth: one of:
  - HTTP bearer
  - API key in query parameter `hapikey`
  - none

Create new settings for the calling extension associated with the specified appId.

## Path parameters

- `appId` integer, required

## Request body

- CrmExtensionsCallingSettingsRequest
  - `height` integer, required: Specifies the height of the calling extension interface.
  - `isReady` boolean, required: Indicates if the calling extension is ready for use.
  - `name` string, required: The name of the calling extension.
  - `supportsCustomObjects` boolean, required: Indicates if the calling extension supports custom objects.
  - `supportsInboundCalling` boolean, required: Indicates if the calling extension supports inbound calling.
  - `url` string, required: The URL associated with the calling extension.
  - `usesCallingWindow` boolean, required: Indicates if the calling extension uses a separate calling window.
  - `usesRemote` boolean, required: Indicates if the calling extension uses remote services.
  - `width` integer, required: Specifies the width of the calling extension interface.

## Response `200`

successful operation

- CrmExtensionsCallingSettingsResponse
  - `createdAt` string, date-time, required: The date and time when the calling extension settings were created.
  - `height` integer, required: The height of the calling extension interface.
  - `isReady` boolean, required: Specifies whether the calling extension settings are ready for use.
  - `name` string, required: The name of the calling extension.
  - `supportsCustomObjects` boolean, required: Indicates if the calling extension supports custom objects.
  - `supportsInboundCalling` boolean, required: Indicates if the calling extension supports inbound calling.
  - `updatedAt` string, date-time, required: The date and time when the calling extension settings were last updated.
  - `url` string, required: The URL associated with the calling extension.
  - `usesCallingWindow` boolean, required: Specifies if the calling extension uses a dedicated calling window.
  - `usesRemote` boolean, required: Indicates if the calling extension uses a remote service.
  - `width` integer, required: The width of the calling extension interface.

## Other responses

- `default`: An error occurred.

## Changes

> 14 revisions in range; 1 not diffed, 2 could not be searched.

- **2026-04-08** `b0d8bc008db9`: 1 info
  - api operation id `post-/crm/extensions/calling/2026-03/{appId}/settings_create` removed and replaced with `post-/crm/extensions/calling/2026-03/{appId}/settings`
- **2026-03-25** `62586336cea2`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/hubspot/apis/hubspot-api-specification/changes/crm/extensions/calling/2026-03/:appId/settings/post.md)

---

[API](https://skmtc.dev/hubspot/apis/hubspot-api-specification.md) - [All operations](https://skmtc.dev/hubspot/apis/hubspot-api-specification/llms.txt) - [OpenAPI document](https://skmtc.dev/hubspot/apis/hubspot-api-specification/revisions/f9c7181056c5?raw)