# Zus FHIR GraphQL API (FQS)

**Canonical:** https://apis.io/apis/zus/zus-fhir-graphql-api-fqs/  
**Provider:** Zus Health — https://apis.io/providers/zus/  
**Base URL:** https://fqs.zusapi.com/query  
**Documentation:** https://docs.zushealth.com/docs/graphql-api

Zus FHIR GraphQL API (FQS) is one of 7 APIs that [Zus Health](https://apis.io/providers/zus/) publishes on the [APIs.io](https://apis.io/) network. The published artifact set on APIs.io includes an API reference and API documentation.

The Zus FHIR Query Service (FQS) is a read-only GraphQL API over the FHIR data model, exposed at a single endpoint. Supports UPID-scoped (one-human) and builder-scoped queries across resource types in the Designated Record Set. Uses the same OAuth 2.0 bearer token as the REST API. Beta.

## Machine-readable artifacts (2)

- **APIReference** — https://fqs-docs.zusapi.com/
- **Documentation** — https://docs.zushealth.com/docs/graphql-api

## Other Zus Health APIs (6)

- [Zus Health Auth API](https://apis.io/apis/zus/zus-auth-api/)
- [Zus Health Documents API](https://apis.io/apis/zus/zus-documents-api/)
- [Zus Health FHIR API](https://apis.io/apis/zus/zus-fhir-api/)
- [Zus Health Patient API](https://apis.io/apis/zus/zus-patient-api/)
- [Zus Health Patient History API](https://apis.io/apis/zus/zus-patient-history-api/)
- [Zus FHIR & Platform API](https://apis.io/apis/zus/zus-fhir-platform-api/)

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