curl --request POST \
  --url https://sg.sandbox.api.reap.global/fees/ \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Reap-Version: <reap-version>' \
  --data '
{
  "type": "FX_MARKUP",
  "scope": {
    "type": "ACCOUNT",
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  },
  "value": {
    "unit": "BPS",
    "bps": 51
  }
}
'

const options = {
  method: 'POST',
  headers: {
    'Reap-Version': '<reap-version>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    type: 'FX_MARKUP',
    scope: {type: 'ACCOUNT', id: '3c90c3cc-0d44-4b50-8888-8dd25736052a'},
    value: {unit: 'BPS', bps: 51}
  })
};

fetch('https://sg.sandbox.api.reap.global/fees/', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://sg.sandbox.api.reap.global/fees/"

payload = {
    "type": "FX_MARKUP",
    "scope": {
        "type": "ACCOUNT",
        "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
    },
    "value": {
        "unit": "BPS",
        "bps": 51
    }
}
headers = {
    "Reap-Version": "<reap-version>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "type": "FX_MARKUP",
  "value": {
    "unit": "BPS",
    "bps": 51
  },
  "scope": {
    "type": "PROJECT"
  },
  "version": 0,
  "createdAt": "<string>",
  "updatedAt": "<string>"
}

{
  "error": {
    "code": "FEE_SCOPE_NOT_FOUND",
    "message": "<string>",
    "detail": {}
  }
}

{
  "error": {
    "code": "DUPLICATE_FEE",
    "message": "<string>",
    "detail": {}
  }
}