> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ca.cryptoprocessing.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Invoice callbacks

> Sent to your callback URL whenever the status of an invoice changes.

> [!TIP]
>
> Documentation for invoices: [Overview](https://docs.ca.cryptoprocessing.com/invoices), [Fees](https://docs.ca.cryptoprocessing.com/invoices/fees), [Create invoice](https://docs.ca.cryptoprocessing.com/api-reference/endpoints/invoices-create), [Cancel invoice](https://docs.ca.cryptoprocessing.com/api-reference/endpoints/invoices-cancel), [Callbacks](https://docs.ca.cryptoprocessing.com/api-reference/callbacks/invoice-payment-callbacks).
>
> For new integrations, **consider [migrating to payment requests](https://docs.ca.cryptoprocessing.com/payment-requests/migration-guide.md) instead**.


## OpenAPI

````yaml api-reference/invoice-payment-callbacks.openapi.yaml webhook invoice
openapi: 3.1.0
info:
  title: Invoice callbacks
  version: '1.0'
  description: Sent to your callback URL whenever the status of an invoice changes.
servers: []
security: []
paths: {}

````

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