---
title: "Calculate the study cost"
method: POST
path: "/api/v1/study-cost-calculator/"
tags: ["studies"]
---

# Calculate the study cost

`POST /api/v1/study-cost-calculator/`

Calculate the study cost, including VAT and fees.

## Headers

- `Authorization` string, required

## Request body

- StudyCostRequest
  - `reward` number, double, required — How much are you going to pay the participants in cents. We use the currency of your account
  - `total_available_places` number, double, required — How many participants are you looking to recruit

## Response `200`

Calculated total cost

- StudyCostResponse
  - `total_cost` number, double, required — Total cost of the study including VAT and fees in cents. We use your account VAT and Fee percentage. The amount is in your account's currency.

## Other responses

- `400` — Error

---

[API](https://skmtc.net/prolific/apis/api-reference.md) · [All operations](https://skmtc.net/prolific/apis/api-reference/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/prolific/api-reference/revisions/dc6f073a9827/schema)