# Incard Developer API > Public API reference and integration guides for the Incard Developer Gateway. ## Docs - [Create outbound invoice](https://docs.incard.com/api-reference/invoices/create-outbound-invoice.md): Creates an outbound invoice for the authenticated company. Requires permission `request_payments`. - [Delete outbound invoice](https://docs.incard.com/api-reference/invoices/delete-outbound-invoice.md): Deletes an outbound invoice for the authenticated company. Requires permission `request_payments`. - [Get outbound invoice](https://docs.incard.com/api-reference/invoices/get-outbound-invoice.md): Returns a single outbound invoice for the authenticated company. Requires permission `request_payments`. - [Get outbound invoice stats](https://docs.incard.com/api-reference/invoices/get-outbound-invoice-stats.md): Returns aggregated outbound invoice stats in the company's base currency. Requires permission `request_payments`. - [Get outbound invoice suggestions](https://docs.incard.com/api-reference/invoices/get-outbound-invoice-suggestions.md): Suggests the next invoice number and default template for a recipient. Requires permission `request_payments`. - [List outbound invoices](https://docs.incard.com/api-reference/invoices/list-outbound-invoices.md): Lists outbound invoices for the authenticated company. Requires permission `request_payments`. - [Update outbound invoice](https://docs.incard.com/api-reference/invoices/update-outbound-invoice.md): Updates an outbound invoice for the authenticated company. Requires permission `request_payments`. - [Authentication](https://docs.incard.com/guides/authentication.md): API keys, access tokens, and permissions. - [Introduction](https://docs.incard.com/guides/introduction.md): Overview of the Incard Developer API. - [Quickstart](https://docs.incard.com/guides/quickstart.md): Make your first Developer API call. - [Webhooks](https://docs.incard.com/guides/webhooks.md): Receive signed Webhook notifications ## OpenAPI Specs - [company.openapi](https://docs.incard.com/specs/company.openapi.yaml)