Exchange rates

Delete the currency exchange rate from 'from' to 'to' on the specified date.

DELETE

https://firefly.example.com/api/v1/exchange-rates/{from}/{to}/{date}

Delete the currency exchange rate from 'from' to 'to' on the specified date. It's important to know that the reverse exchange rate (from 'to' to 'from') will not be deleted and Firefly III will still be able to infer the correct exchange rate from the reverse one.

curl -X DELETE 'https://firefly.example.com/api/v1/exchange-rates/EUR/USD/2026-10-01' \
  -H 'X-Trace-Id: 40c71bbb-c676-4f24-83cf-cc725d7d7a00' \
  -H 'Authorization: Bearer YOUR_TOKEN'

const response = await fetch('https://firefly.example.com/api/v1/exchange-rates/EUR/USD/2026-10-01', {
  method: 'DELETE',
  headers: {
    'X-Trace-Id': '40c71bbb-c676-4f24-83cf-cc725d7d7a00',
    'Authorization': 'Bearer YOUR_TOKEN',
  },
});

const data = await response.text();

import requests

response = requests.delete(
    'https://firefly.example.com/api/v1/exchange-rates/EUR/USD/2026-10-01',
    headers={
        'X-Trace-Id': '40c71bbb-c676-4f24-83cf-cc725d7d7a00',
        'Authorization': 'Bearer YOUR_TOKEN',
    },
)
print(response.text)

{
  "message": "Bad Request",
  "exception": "BadRequestHttpException"
}

{
  "message": "Unauthenticated",
  "exception": "AuthenticationException"
}

{
  "message": "Resource not found",
  "exception": "NotFoundHttpException"
}

{
  "message": "Internal Exception",
  "exception": "InternalException"
}

Parameters

fromstringrequiredpath

The currency code of the 'from' currency.

tostringrequiredpath

The currency code of the 'to' currency.

datestringrequiredpath

Response

204No Content

Currency exchange rate(s) deleted.

400Bad RequestBadRequestResponse

Bad request

Response fields application/json

messagestring

Example

Bad Request

exceptionstring

Example

BadRequestHttpException

401UnauthorizedUnauthenticatedResponse

Unauthenticated

Response fields application/json

messagestring

Example

Unauthenticated

exceptionstring

Example

AuthenticationException

404Not FoundNotFoundResponse

Page not found

Response fields application/json

messagestring

Example

Resource not found

exceptionstring

Example

NotFoundHttpException

500Internal Server ErrorInternalExceptionResponse

Internal exception

Response fields application/json

messagestring

Example

Internal Exception

exceptionstring

Example

InternalException

Authorization

firefly_iii_authoauth2

OAuth2 authorization code flow. Create a client on your installation's /profile page; it authorizes at /oauth/authorize and issues tokens at /oauth/token there. The URLs below are the demo site's. How to use the API walks through it.

local_bearer_authhttp (bearer)

A Personal Access Token, sent as a bearer token. Create one on your installation under Options > Profile > OAuth > Personal Access Tokens.