# All API use cases

Choose a business outcome, then open its relevant API endpoints. The HTML catalog supports search by workflow, resource, or API name. Operation support varies by connector.

## Complete workflow source index

[Browse workflow contexts](https://developers.apideck.com/api/context) for task-specific Markdown source indexes across APIs. Each published context links the relevant operation docs and explains its scope and coverage limits.

## Accounting solution build guides

- [Accounts payable automation](https://developers.apideck.com/use-cases/accounts-payable.md): Create an approved supplier bill, record its payment, and reconcile the outstanding balance.
- [Invoicing & receivables](https://developers.apideck.com/use-cases/accounts-receivable.md): Keep your billing product and your customer’s receivables in step.
- [Expense management integrations](https://developers.apideck.com/use-cases/expenses.md): Give finance teams coded expense records they can reconcile.
- [Financial reporting & planning](https://developers.apideck.com/use-cases/reporting.md): Bring accounting actuals into a model your customers can inspect.
- [Lending & borrower monitoring](https://developers.apideck.com/use-cases/lending.md): Bring financial statements and receivables into your own credit workflow.
- [Bank feeds for accounting](https://developers.apideck.com/use-cases/bank-feeds.md): Put account activity where customers reconcile their books.

[Accounting workflow guides and demos](https://developers.apideck.com/use-cases/accounting.md)

## Interactive demos

These demos illustrate workflows with sample data. Query parameters on this catalog do not tailor this Markdown; it lists all APIs.

- [Purchase-to-pay demo](https://procurement.apideck.dev/)
- [Invoicing demo](https://vertical-saas.apideck.dev/)
- [Expense management demo](https://expense-management.apideck.dev/)
- [FP&A demo](https://fpa.apideck.dev/)
- [Lending demo](https://lending.apideck.dev/)
- [Bank feeds demo](https://banks.apideck.dev/)
- [HRIS employee sync demo](https://hris.apideck.dev/)
- [FX Payments demo](https://fx-payments.apideck.dev/)

## Explore by API

- [ERP & Accounting reference](https://developers.apideck.com/apis/accounting/reference.md)
- [CRM reference](https://developers.apideck.com/apis/crm/reference.md)
- [HRIS reference](https://developers.apideck.com/apis/hris/reference.md)
- [ATS reference](https://developers.apideck.com/apis/ats/reference.md)
- [File Storage reference](https://developers.apideck.com/apis/file-storage/reference.md)
- [Ecommerce reference](https://developers.apideck.com/apis/ecommerce/reference.md)

[Search the interactive catalog](https://developers.apideck.com/use-cases/all)