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

# Instalment API

> Endpoint for manipulating instalments

<CardGroup cols={2}>
  <Card title="Download OpenAPI specification" href="https://enfuce-public-resources.s3.eu-central-1.amazonaws.com/public/api/cia/external/instalment/instalment.json" />
</CardGroup>

For any questions, contact us:

* [Enfuce Support Portal](https://enfuce.atlassian.net/servicedesk/customer/portal/6)
* [Enfuce website](https://enfuce.com)

## Authentication

Basic authentication is used to authenticate towards Enfuce API. It is described in more detail in RFC 7617.

|                            |       |
| :------------------------- | :---- |
| Security Scheme Type:      | HTTP  |
| HTTP Authorization Scheme: | basic |

<Card title="Instalment Operations" icon="arrow-right" href="/payment/api/instalment-controller" horizontal />