# LKCloud Interop API

**Canonical:** https://apis.io/apis/ellkay/lkcloud-interop-api/  
**Provider:** ELLKAY — https://apis.io/providers/ellkay/  
**Base URL:** https://services.lkcloud.com  
**Documentation:** https://lkcloud-api.readme.io/docs/lk-cloud-overview

LKCloud Interop API is one of 2 APIs that [ELLKAY](https://apis.io/providers/ellkay/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Interoperability, EHR Integration, and Healthcare. The published artifact set on APIs.io includes API documentation and an API reference.

Single-endpoint healthcare interoperability API exposing proprietary LK* operations (appointments, patient bridge/search, documents, charges, patient balance, master lists) that bi-directionally connect applications to hundreds of EHR/PM data sources. JSON over HTTPS, invoked as POST operations; OAuth 2.0 Bearer + SiteServiceKey.

## Machine-readable artifacts (3)

- **Documentation** — https://lkcloud-api.readme.io/docs/lk-cloud-overview
- **APIReference** — https://lkcloud-api.readme.io/reference
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/ellkay/refs/heads/main/apis.yml

## Other ELLKAY APIs (1)

- [LKCloud FHIR R4 API](https://apis.io/apis/ellkay/lkcloud-fhir-r4-api/)

## Tags

Interoperability, EHR Integration, Healthcare

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