# PROradius Invoicing API

> Build on the PROradius Invoicing API: REST endpoints, API keys and signed webhooks.

Authenticate with an organization API key as a Bearer token. v1 only receives additive changes. The full OpenAPI document is at /openapi.json.

## Documentation Sets

- [Abridged documentation](https://developers.invoicing.proradius.co/llms-small.txt): a compact version of the documentation for PROradius Invoicing API, with non-essential content removed
- [Complete documentation](https://developers.invoicing.proradius.co/llms-full.txt): the full documentation for PROradius Invoicing API

## Notes

- The complete documentation includes all content from the official documentation
- The content is automatically generated from the same source as the official documentation