Get donation fee
This endpoint calculates the processing fee for a given donation amount and currency. Fee amounts vary by organization, so always use this endpoint to get the exact values — don't calculate the fee independently. This endpoint requires the same API key scope as creating a donation (Donations — Write).
Query parameters
Specifies whether the request is executed in live or test mode. Required for API keys created after 30th January 2026.
Three-letter ISO currency code, in lowercase.
Donation amount in the selected currency. Must be a decimal string in the format {NNN}[.nn]. Examples: 9.99 (for USD), 200 (for JPY).
Response
On success, the API returns the calculated fee and the total amount including the fee.
Example response
{
"amount": "99.99",
"amount_with_fee": "103.19",
"fee_amount": "3.20"
}Changes
No recorded changes to this endpoint across all 4 revisions of this API.