> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.mercoa.com/embedded-ap-ar/api-reference/entity/external-accounting-system/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.mercoa.com/_mcp/server.

# External Accounting System


## API Docs

- External Accounting System [Get External System](https://docs.mercoa.com/embedded-ap-ar/api-reference/entity/external-accounting-system/get.md)
- External Accounting System [Create/Update External Entity](https://docs.mercoa.com/embedded-ap-ar/api-reference/entity/external-accounting-system/create.md)
- External Accounting System [Connect External System](https://docs.mercoa.com/embedded-ap-ar/api-reference/entity/external-accounting-system/connect.md)
- External Accounting System [Sync External System](https://docs.mercoa.com/embedded-ap-ar/api-reference/entity/external-accounting-system/sync.md)

## OpenAPI Specification

The raw OpenAPI 3.1 specification for this API is available at:
- [OpenAPI JSON](https://docs.mercoa.com/embedded-ap-ar/api-reference/entity/external-accounting-system/openapi.json)
- [OpenAPI YAML](https://docs.mercoa.com/embedded-ap-ar/api-reference/entity/external-accounting-system/openapi.yaml)