---
title: "Create additional cost"
method: POST
path: "/v1/additional_costs"
tags: ["Additional costs"]
---

# Create additional cost

`POST /v1/additional_costs`

## Request

- Base URL: `https://yourbaseurl.talon.one`
- URL: `https://yourbaseurl.talon.one/v1/additional_costs`
- Auth: one of:
  - API key in header `Authorization`
  - API key in header `Authorization`
- TypeScript: <https://skmtc.dev/talon/apis/management-api/docs/v1/additional_costs/post.ts> (a function with typed inputs; its response is checked against the schema)

> [!note] Management API endpoints are **not** meant to be used in real-time integrations that directly serve your end users. Rate limit: 3 requests per second.

Create an [additional cost](https://docs.talon.one/docs/product/account/dev-tools/managing-additional-costs).

These additional costs are shared across all applications in your account, and are never required.

## Request body

- NewAdditionalCost
  - `name` string, required: The internal name used in API requests.
  - `title` string, required: The human-readable name for the additional cost that will be shown in the Campaign Manager. Like `name`, the combination of entity and title must also be unique.
  - `description` string, required: A description of this additional cost.
  - `subscribedApplicationsIds` integer[]: A list of the IDs of the applications that are subscribed to this additional cost.
  - `type` 'session' | 'item' | 'both': The type of additional cost. Possible value: - `session`: Additional cost will be added per session. - `item`: Additional cost will be added per item. - `both`: Additional cost will be added per item and session.

## Response `201`

Created

- AccountAdditionalCost
  - `id` integer, required: The internal ID of this entity.
  - `created` string, date-time, required: The time this entity was created.
  - `accountId` integer, required: The ID of the account that owns this entity.
  - `name` string, required: The internal name used in API requests.
  - `title` string, required: The human-readable name for the additional cost that will be shown in the Campaign Manager. Like `name`, the combination of entity and title must also be unique.
  - `description` string, required: A description of this additional cost.
  - `subscribedApplicationsIds` integer[]: A list of the IDs of the applications that are subscribed to this additional cost.
  - `type` 'session' | 'item' | 'both': The type of additional cost. Possible value: - `session`: Additional cost will be added per session. - `item`: Additional cost will be added per item. - `both`: Additional cost will be added per item and session.

---

[API](https://skmtc.dev/talon/apis/management-api.md) - [All operations](https://skmtc.dev/talon/apis/management-api/llms.txt) - [OpenAPI document](https://skmtc.dev/talon/apis/management-api/revisions/7ef1b9504c3a?raw)