# Halo Connect > Australian healthcare interoperability platform (Brisbane, founded 2021) that exposes on-premise practice management system (PMS) databases — Best Practice, Zedmed, Dental4Windows — through a modern cloud API, via SQL passthrough or a standards-based FHIR R4 (4.0.1) facade built toward AU Base 4.1.0. Access is gated behind a Halo Cloud subscription (Azure API Management subscription keys; desktop apps also use bearer JWT + device id). No self-serve public API. ## APIs - [Halo Cloud API for Integrators](https://docs.haloconnect.io/halo-cloud/overview/): Site pairing, SQL passthrough (immediate + async), FHIR R4 search, and registered (recurring) queries. Auth: Ocp-Apim-Subscription-Key. - [Halo Cloud API for Desktop Applications](https://docs.haloconnect.io/halo-cloud/overview/): Token endpoint + query/FHIR operations under /desktop. Auth: subscription key + bearer JWT + DeviceId. - [Halo Cloud FHIR API](https://docs.haloconnect.io/halo-cloud/fhir-api/overview/): FHIR R4 (4.0.1) facade toward AU Base 4.1.0; search/read + Patient $summary. CapabilityStatement at {baseUrl}/metadata. ## Specs - [Integrator OpenAPI](https://raw.githubusercontent.com/api-evangelist/halo-connect/refs/heads/main/openapi/halo-connect-integrator-openapi.json) - [Desktop OpenAPI](https://raw.githubusercontent.com/api-evangelist/halo-connect/refs/heads/main/openapi/halo-connect-desktop-openapi.json) - [Webhooks AsyncAPI](https://raw.githubusercontent.com/api-evangelist/halo-connect/refs/heads/main/asyncapi/halo-connect-webhooks-asyncapi.yml) ## Docs - [Getting Started](https://docs.haloconnect.io/halo-cloud/getting-started/) - [FHIR API Overview](https://docs.haloconnect.io/halo-cloud/fhir-api/overview/) - [SQL Passthrough](https://docs.haloconnect.io/halo-cloud/sql-passthrough/) - [Webhooks](https://docs.haloconnect.io/halo-cloud/webhooks/) - [Troubleshooting / Errors](https://docs.haloconnect.io/halo-cloud/troubleshooting/) - [Release Notes](https://docs.haloconnect.io/release-notes/) - [Security](https://docs.haloconnect.io/security/) - [API Reference — Integrator](https://docs.haloconnect.io/api-reference/integrator-openapi.html) - [API Reference — Desktop](https://docs.haloconnect.io/api-reference/desktop-openapi.html) ## Company - [Website](https://haloconnect.io/) - [Trust & Security](https://haloconnect.io/trust) - [Status](https://status.haloconnect.io/) - [Blog](https://haloconnect.io/blog) - [SLA](https://haloconnect.io/sla) - [Contact](https://haloconnect.io/contact-us)