---
title: "Changes to Create Client (Onboarding)"
method: POST
path: "/v1/fhir-onboarding/client"
---

# Changes to Create Client (Onboarding)

`POST /v1/fhir-onboarding/client`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 2 of 3 revisions.

- **2026-10-01** `f754b29e3de5`: 6 breaking, 8 info
- **2026-09-10** `33e78eb36727`: 2 breaking, 4 warning, 3 info

## Changes

- **2026-10-01** `f754b29e3de5`: 6 breaking, 8 info
  - removed the enum value `FhirAggregator` of the request property `ClientType`
  - removed the enum value `FhirPayer` of the request property `ClientType`
  - removed the enum value `FhirProvider` of the request property `ClientType`
  - removed the enum value `FhirThirdParty` of the request property `ClientType`
  - removed the enum value `Payer` of the request property `EntityType`
  - removed the enum value `Provider` of the request property `EntityType`
  - the request property `Entities` became optional
  - the request property `EntityType` became optional
  - added the new `Aggregator` enum value to the request property `ClientType`
  - added the new `Payer` enum value to the request property `ClientType`
  - added the new `Provider` enum value to the request property `ClientType`
  - added the new `ThirdParty` enum value to the request property `ClientType`
  - request property `Entities` list-of-types was widened by adding types `null` to media type `application/json`
  - request property `EntityType` list-of-types was widened by adding types `null` to media type `application/json`
- **2026-09-10** `33e78eb36727`: 2 breaking, 4 warning, 3 info
  - added the new required request property `Entities`
  - added the new required request property `EntityType`
  - removed the request property `Agencies`
  - removed the request property `Payer`
  - removed the optional property `Data/AgencyUsers` from the response with the `201` status
  - removed the optional property `Data/PayerUser` from the response with the `201` status
  - added the optional property `Data/Entities` to the response with the `201` status
  - added the optional property `Data/EntityType` to the response with the `201` status
  - added the optional property `Data/OnboardingSummary/anyOf[subschema #1: OnboardingSummary]/GlobalEntityIds` to the response with the `201` status

---

[Operation](https://skmtc.dev/hhaexchange/apis/hhaexchange-api/docs/v1/fhir-onboarding/client/post.md) - [API](https://skmtc.dev/hhaexchange/apis/hhaexchange-api.md) - [Page](https://skmtc.dev/hhaexchange/apis/hhaexchange-api/changes/v1/fhir-onboarding/client/post)