---
title: "Calculate Exchange Rates"
method: POST
path: "/v1/fee-calculation"
tags: ["Fees & FX Rates"]
---

# Calculate Exchange Rates

`POST /v1/fee-calculation`

Calculate exchange rates and applicable fees for a transaction.

## Request body

- object
  - `source_currency` string
  - `source_amount` number
  - `destination_amount` number
  - `destination_currency` string
  - `beneficiary_id` string, uuid

## Response `200`

Fee calculation completed successfully

- object
  - `data` object
    - `source_currency` string
    - `destination_currency` string
    - `source_amount` number
    - `exchange_rate` number, float
    - `destination_amount` number
    - `valid_till` string, date-time
    - `fee` object
      - `fixed` number
      - `percentage` number
      - `total` number
      - `is_fee_applied` boolean

## Other responses

- `401` — Authentication failed due to invalid credentials

---

[API](https://skmtc.net/fin/apis/fin-com-api.md) · [All operations](https://skmtc.net/fin/apis/fin-com-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/fin/fin-com-api/revisions/6e69503ee7b8/schema)