---
title: "Changes to Create Backend Cluster"
method: POST
path: "/v1/event-gateways/{gatewayId}/backend-clusters"
---

# Changes to Create Backend Cluster

`POST /v1/event-gateways/{gatewayId}/backend-clusters`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 7 of 87 revisions.

- **2026-10-15** `7aab863a6daa`: 1 breaking, 2 warning
- **2026-09-25** `68d43091b84d`: 2 warning
- **2026-09-18** `f324fb7610e4`: 2 breaking, 18 info
- **2026-01-29** `48b406d912db`: 2 info
- **2026-01-20** `7bc7400170e0`: 2 info
- **2025-12-22** `5e6b2a1afead`: 5 breaking
- **2025-12-03** `581456e3279f`: 1 info

## Changes

- **2026-10-15** `7aab863a6daa`: 1 breaking, 2 warning
  - added `#/components/schemas/InvalidParameterMinimumTime, #/components/schemas/InvalidParameterMaximumTime` to the `invalid_parameters/items/` response property `oneOf` list for the response status `400`
  - added the new `key_invalid` enum value to the `invalid_parameters/items/oneOf[#/components/schemas/InvalidParameterStandard]/rule` response property for the response status `400`
  - added the new `unique` enum value to the `invalid_parameters/items/oneOf[#/components/schemas/InvalidParameterStandard]/rule` response property for the response status `400`
- **2026-09-25** `68d43091b84d`: 2 warning
  - added the new `400.00` enum value to the `status` response property for the response status `400`
  - added the new `403.00` enum value to the `status` response property for the response status `403`
- **2026-09-18** `f324fb7610e4`: 2 breaking, 18 info
  - the response's body type changed from no type to `object` for status `400`
  - the response's body type changed from no type to `object` for status `403`
  - removed `#/components/schemas/BaseError, subschema #2` from the response body `allOf` list for the response status `400`
  - removed `#/components/schemas/BaseError, subschema #2` from the response body `allOf` list for the response status `401`
  - removed `#/components/schemas/BaseError, subschema #2` from the response body `allOf` list for the response status `403`
  - added the optional property `type` to the response with the `400` status
  - added the optional property `type` to the response with the `403` status
  - the response property `detail` became required for the status `401`
  - the response property `instance` became required for the status `401`
  - the response property `status` became required for the status `401`
  - the response property `title` became required for the status `401`
  - added the required property `detail` to the response with the `400` status
  - added the required property `detail` to the response with the `403` status
  - added the required property `instance` to the response with the `400` status
  - added the required property `instance` to the response with the `403` status
  - added the required property `invalid_parameters` to the response with the `400` status
  - added the required property `status` to the response with the `400` status
  - added the required property `status` to the response with the `403` status
  - added the required property `title` to the response with the `400` status
  - added the required property `title` to the response with the `403` status
- **2026-01-29** `48b406d912db`: 2 info
  - added the new optional request property `tls/client_identity`
  - added the optional property `tls/client_identity` to the response with the `201` status
- **2026-01-20** `7bc7400170e0`: 2 info
  - the `description` request property default value `` was added
  - the `description` response's property default value `` was added for the status `201`
- **2025-12-22** `5e6b2a1afead`: 5 breaking
  - the `authentication/oneOf[#/components/schemas/BackendClusterAuthenticationSaslPlain]/password` request property's minLength was increased from `0` to `1`
  - the `authentication/oneOf[#/components/schemas/BackendClusterAuthenticationSaslPlain]/username` request property's minLength was increased from `0` to `1`
  - the `authentication/oneOf[#/components/schemas/BackendClusterAuthenticationSaslScram]/password` request property's minLength was increased from `0` to `1`
  - the `authentication/oneOf[#/components/schemas/BackendClusterAuthenticationSaslScram]/username` request property's minLength was increased from `0` to `1`
  - the `tls/ca_bundle` request property's minLength was increased from `0` to `1`
- **2025-12-03** `581456e3279f`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/kong/apis/konnect-api-go-sdk/docs/v1/event-gateways/:gatewayId/backend-clusters/post.md) · [API](https://skmtc.dev/kong/apis/konnect-api-go-sdk.md) · [Page](https://skmtc.dev/kong/apis/konnect-api-go-sdk/changes/v1/event-gateways/:gatewayId/backend-clusters/post)