# Proactis Invoice API

**Canonical:** https://apis.io/apis/proactis/proactis-invoice/  
**Provider:** Proactis — https://apis.io/providers/proactis/  
**Base URL:** https://apiuk.proactiscloud.com  
**Documentation:** https://docs.proactis.com/apis/invoice-api/overview

Proactis Invoice API is one of 10 APIs that [Proactis](https://apis.io/providers/proactis/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Invoicing, Accounts Payable, and cXML. The published artifact set on APIs.io includes API documentation and an API reference.

Retrieve invoices from Proactis, receive them pushed to your own endpoint as they reach a configured status, and write back payment information. Entry number and payment date are the two fields updatable only through the API, and every change is retained in the invoice audit log. Invoices fetched with GET do not include attachments; pushed invoices carry them as a multipart request.

## Machine-readable artifacts (4)

- **Documentation** — https://docs.proactis.com/apis/invoice-api/overview
- **APIReference** — https://docs.proactis.com/invoice-api
- **Examples** — https://docs.proactis.com/apis/invoice-api/sample-messages
- **Schema** — https://docs.proactis.com/apis/invoice-api/export-definition

## Other Proactis APIs (9)

- [Proactis Accounting API](https://apis.io/apis/proactis/proactis-accounting/)
- [Proactis Contract API](https://apis.io/apis/proactis/proactis-contract/)
- [Proactis eInvoice API](https://apis.io/apis/proactis/proactis-einvoice/)
- [Proactis Order API](https://apis.io/apis/proactis/proactis-order/)
- [Proactis Receipt API](https://apis.io/apis/proactis/proactis-receipt/)
- [Proactis Requisition API](https://apis.io/apis/proactis/proactis-requisition/)
- [Proactis Supplier API](https://apis.io/apis/proactis/proactis-supplier/)
- [Proactis Timecard API](https://apis.io/apis/proactis/proactis-timecard/)
- [Proactis User API (SCIM 2.0)](https://apis.io/apis/proactis/proactis-user/)

## Tags

Invoicing, Accounts Payable, cXML

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/proactis/proactis-invoice/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/proactis/.