# Ascend Documentation > Documentation for Ascend ## Guides - [Overview](https://developers.useascend.com/docs/webhooks.md) - [Invoice Webhooks](https://developers.useascend.com/docs/invoice-webhooks.md): Summary of invoice events - [Payout Webhooks](https://developers.useascend.com/docs/payout-webhooks.md): Summary of payout events - [Refund Webhooks](https://developers.useascend.com/docs/refund-webhooks.md): Summary of refund events ## API Reference - [Create attachment](https://developers.useascend.com/reference/createattachment.md) - [Get attachment](https://developers.useascend.com/reference/getattachment.md) - [Delete Attachments](https://developers.useascend.com/reference/deleteattachment.md) - [List Billables](https://developers.useascend.com/reference/listbillables.md) - [Create Billable](https://developers.useascend.com/reference/createbillable.md) - [Get Billable](https://developers.useascend.com/reference/getbillable.md) - [Update Billable](https://developers.useascend.com/reference/updatebillable.md) - [Delete Billable](https://developers.useascend.com/reference/deletebillable.md) - [List Cancelation Returns](https://developers.useascend.com/reference/getcancelationreturns.md) - [Create Cancelation Return](https://developers.useascend.com/reference/createcancelationreturns.md) - [Get Cancelation Return](https://developers.useascend.com/reference/getcancelationreturn.md) - [Update Cancelation Returns](https://developers.useascend.com/reference/updatecancelationreturn.md) - [List Contacts](https://developers.useascend.com/reference/get_v1-contacts.md) - [Create Contact](https://developers.useascend.com/reference/post_v1-contacts.md) - [Get Contact](https://developers.useascend.com/reference/get_v1-contacts-id.md) - [Update contact](https://developers.useascend.com/reference/patch_v1-contacts-id.md) - [Create Insured](https://developers.useascend.com/reference/createinsured.md) - [List Insureds](https://developers.useascend.com/reference/listinsureds.md) - [Get Insured](https://developers.useascend.com/reference/getinsured.md) - [Update Insured](https://developers.useascend.com/reference/updateinsured.md) - [List Loans](https://developers.useascend.com/reference/listloans.md) - [Get Loan](https://developers.useascend.com/reference/getloan.md) - [Create FinanceEstimate](https://developers.useascend.com/reference/post_v1-finance-estimates.md) - [Create premium reducing endorsement](https://developers.useascend.com/reference/post_v1-premium-reducing-endorsements.md) - [Show a premium reducing endorsement](https://developers.useascend.com/reference/get_v1-premium-reducing-endorsements-id.md) - [Update a premium reducing endorsement](https://developers.useascend.com/reference/patch_v1-premium-reducing-endorsements-id.md) - [delete premium reducing endorsement](https://developers.useascend.com/reference/delete_v1-premium-reducing-endorsements-id.md) - [List Programs](https://developers.useascend.com/reference/listprograms.md) - [Generate payment proposal document for a program](https://developers.useascend.com/reference/createpaymentproposal.md) - [Create Program](https://developers.useascend.com/reference/createprogram.md) - [Get Program](https://developers.useascend.com/reference/getprogram.md) - [Update program](https://developers.useascend.com/reference/updateprogram.md) - [Archive Program](https://developers.useascend.com/reference/deleteprogram.md) - [Notify User](https://developers.useascend.com/reference/notifyinsured.md) - [Unarchive program](https://developers.useascend.com/reference/unarchiveprogram.md) - [Loan Payoff Estimate](https://developers.useascend.com/reference/createloanpayoffestimate.md) - [Get installment plan](https://developers.useascend.com/reference/get_v1-installment-plans-id.md) - [Archive Installment Plan](https://developers.useascend.com/reference/archiveinstallmentplan.md): Archives a unpurchased installment plan. This will void all installments. - [Get returns](https://developers.useascend.com/reference/get_v1-installment-plans-installment-plan-id-returns.md) - [Create a return](https://developers.useascend.com/reference/post_v1-installment-plans-installment-plan-id-returns.md) - [Get a return](https://developers.useascend.com/reference/get_v1-installment-plans-installment-plan-id-returns-return-id.md) - [Update a return](https://developers.useascend.com/reference/patch_v1-installment-plans-installment-plan-id-returns-return-id.md) - [Void return](https://developers.useascend.com/reference/delete_v1-installment-plans-installment-plan-id-returns-return-id.md) - [Create installment plan](https://developers.useascend.com/reference/post_v1-installment-plans.md) - [Update Installment Plan](https://developers.useascend.com/reference/updateinstallmentplan.md) - [Cancel Installment Plan](https://developers.useascend.com/reference/cancelinstallmentplan.md): Cancels a purchased installment plan. This will void any unpaid installments, but existing payments will not be reversed. - [Notify User](https://developers.useascend.com/reference/sendinstallmentplanreminder.md) - [Get installment](https://developers.useascend.com/reference/get_v1-installments-id.md) - [Update installment](https://developers.useascend.com/reference/patch_v1-installments-id.md) - [List the insured's last-used payment method](https://developers.useascend.com/reference/listinsuredpaymentmethods.md) - [Charge a renewal program's initial checkout invoice using the insured's stored payment method](https://developers.useascend.com/reference/chargeinvoice.md) - [List One Time Payments](https://developers.useascend.com/reference/listonetimepayments.md) - [Create One Time Payment](https://developers.useascend.com/reference/createonetimepayment.md) - [Get One Time Payment](https://developers.useascend.com/reference/getonetimepayment.md) - [Update One Time Payment](https://developers.useascend.com/reference/updateonetimepayment.md) - [Void One Time Payment](https://developers.useascend.com/reference/voidonetimepayment.md) - [Notify User](https://developers.useascend.com/reference/sendonetimepaymentreminder.md) - [Get returns](https://developers.useascend.com/reference/get_v1-one-time-payments-one-time-payment-id-returns.md) - [Create a return](https://developers.useascend.com/reference/post_v1-one-time-payments-one-time-payment-id-returns.md) - [Get a return](https://developers.useascend.com/reference/get_v1-one-time-payments-one-time-payment-id-returns-return-id.md) - [Update a return](https://developers.useascend.com/reference/patch_v1-one-time-payments-one-time-payment-id-returns-return-id.md) - [Void return](https://developers.useascend.com/reference/delete_v1-one-time-payments-one-time-payment-id-returns-return-id.md) - [Create loan payoff invoice](https://developers.useascend.com/reference/createprogramloanpayoff.md) - [Get loan payoff invoice](https://developers.useascend.com/reference/getprogramloanpayoff.md) - [Void loan payoff invoice](https://developers.useascend.com/reference/voidprogramloanpayoff.md) - [List Invoices](https://developers.useascend.com/reference/listinvoices.md) - [Create invoice](https://developers.useascend.com/reference/createinvoice.md) - [Get Invoice](https://developers.useascend.com/reference/getinvoice.md) - [Update invoice](https://developers.useascend.com/reference/updateinvoice.md) - [Void invoice](https://developers.useascend.com/reference/voidinvoice.md) - [List Payouts](https://developers.useascend.com/reference/listpayouts.md) - [List Refunds](https://developers.useascend.com/reference/get_v1-refunds.md) - [List Carriers](https://developers.useascend.com/reference/listcarriers.md) - [List CoverageTypes](https://developers.useascend.com/reference/listcoveragetypes.md) - [List Wholesalers](https://developers.useascend.com/reference/listwholesalers.md) - [List Users](https://developers.useascend.com/reference/listusers.md) - [Create User](https://developers.useascend.com/reference/createuser.md) - [Get User](https://developers.useascend.com/reference/getuser.md) - [Update User](https://developers.useascend.com/reference/updateuser.md) - [List account users](https://developers.useascend.com/reference/listorgaccountusers.md) - [Create account user](https://developers.useascend.com/reference/createorgaccountuser.md) - [Get account user](https://developers.useascend.com/reference/getorgaccountuser.md) - [List Accounts](https://developers.useascend.com/reference/get_v1-accounts.md) - [Create Accounts](https://developers.useascend.com/reference/post_v1-accounts.md) - [Get account](https://developers.useascend.com/reference/get_v1-accounts-id.md) - [Update account](https://developers.useascend.com/reference/patch_v1-accounts-id.md) - [Initiate a cancelation for a billable](https://developers.useascend.com/reference/cancelbillable.md)