Fern

Fern integration (Finance). Imported from open-connector.

API key7 toolshttps://api.fernhq.com

GET

fern_list_customers

List Fern customers with optional organization filtering and cursor pagination.

/customers

3 parameters

Param	Type	Required	Description
pageToken	string	optional	Token for forward pagination.
pageSize	integer	optional	Number of items per page, from 1 to 100.
organizationId	string	optional	Organization ID to filter customers.

GET

fern_get_customer

Retrieve one Fern customer by ID.

/customers/{customerId}

3 parameters

Param	Type	Required	Description
customerId	string	required	Unique identifier of the customer.
includeVerification	boolean	optional	Whether to include verification details.
includePaymentMethods	boolean	optional	Whether to include available payment methods in the response.

GET

fern_list_payment_accounts

List Fern payment accounts for a customer with cursor pagination.

/payment-accounts

3 parameters

Param	Type	Required	Description
customerId	string	required	Customer to list payment accounts for.
pageToken	string	optional	Token for forward pagination.
pageSize	integer	optional	Number of items per page, from 1 to 100.

GET

fern_get_payment_account

Retrieve one Fern payment account by ID.

/payment-accounts/{paymentAccountId}

1 parameter

Param	Type	Required	Description
paymentAccountId	string	required	Unique identifier of the payment account.

GET

fern_get_exchange_rate

Retrieve Fern exchange rate and fee details for source and destination currencies.

/exchange-rates

5 parameters

Param	Type	Required	Description
sourceCurrency	string	required	Currency label or contract address for the source currency.
sourcePaymentMethod	string	required	Payment method for the source exchange rate.
sourceAmount	string	optional	Amount to be sent. When provided, Fern returns fees and destination amount.
destinationPaymentMethod	string	required	Payment method for the destination exchange rate.
destinationCurrency	string	required	Currency label or contract address for the destination currency.

GET

fern_list_transactions

List Fern transactions with optional customer, payment account, and organization filters.

/transactions

5 parameters

Param	Type	Required	Description
pageToken	string	optional	Token for forward pagination.
pageSize	integer	optional	Number of items per page, from 1 to 100.
customerId	string	optional	Customer to list transactions for.
paymentAccountId	string	optional	Payment account to list transactions for.
organizationId	string	optional	Organization to list transactions for.

GET

fern_get_transaction

Retrieve one Fern transaction by ID.

/transactions/{transactionId}

1 parameter

Param	Type	Required	Description
transactionId	string	required	Unique identifier of the transaction.