Delete a fiat integration

DELETE /api/v1/partner/customers/{customerId}/fiat-integrations/{integrationId}

Required scope: payments:create. No Idempotency-Key.

Removes an integration from your customer.

Read this before you call it

Deleting has two side effects that are not limited to the integration row:

What	What happens
Existing fiat orders	Survive, with their `integration_id` cleared. Payment history is not erased, and deleting is not a way to erase it.
The merchant’s webhooks	Any webhook the merchant registered against this integration is deleted with it.

The second is the one worth pausing on: tidying up an integration you created can take a merchant’s notification wiring with it. There is no undo.

Request

curl -X DELETE https://www.niftipay.com/api/v1/partner/customers/pc-1/fiat-integrations/95d92bb0-65a4-462f-ae14-90be85bea223 \
  -H "Authorization: Bearer <partner_api_key>"

No request body.

Response `200`

{
  "request_id": "req-1",
  "api_version": "2026-08-01",
  "data": {
    "deleted": true,
    "integration_id": "95d92bb0-65a4-462f-ae14-90be85bea223"
  }
}

Deleting something that is not there is `404`

Not a silent 200. A delete that “succeeded” against a mistyped id would leave you believing something was removed that is still live and still able to take payments.

So a second DELETE on the same id answers 404, and that is the correct answer rather than a quirk: the integration is gone either way, and your next read agrees.

Errors

Status	code	Meaning
403	insufficient_scope	Token was not minted with `payments:create`.
404	resource_not_found	No such integration on this customer, or already deleted.
503	temporarily_unavailable	Transient database failure. Retry.