---
title: "Changes to Create a response"
method: POST
path: "/api/responses"
---

# Changes to Create a response

`POST /api/responses`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 4 of 12 revisions.

- **2026-10-21** `c30bcb383ee8`: 7 breaking, 13 info
- **2026-10-02** `b830b79cfd52`: 3 breaking, 4 info
- **2026-09-17** `6fa8242da8c2`: 1 warning, 1 info
- **2026-09-12** `22b868ef3f22`: 1 info

## Changes

- **2026-10-21** `c30bcb383ee8`: 7 breaking, 13 info
  - request body became required
  - the response property `error/code` became nullable for the status `400`
  - the response property `error/code` became nullable for the status `401`
  - the response property `error/code` became nullable for the status `422`
  - the response property `error/param` became nullable for the status `400`
  - the response property `error/param` became nullable for the status `401`
  - the response property `error/param` became nullable for the status `422`
  - api operation id `gateway_createResponse` removed and replaced with `createResponse`
  - api tag `Gateway` added
  - api tag `gateway` removed
  - the request optional property `respan_params/credential_override/additionalProperties/api_key` became write-only
  - added the new enum value `bedrock` to the `header` request parameter `X-Respan-Route-Provider`
  - the `cache_ttl` request property format was generalized from `double` to no format
  - the `respan_params/cache_ttl` request property format was generalized from `double` to no format
  - removed `subschema #1, subschema #2` from the `error/code` response property `oneOf` list for the response status `400`
  - removed `subschema #1, subschema #2` from the `error/code` response property `oneOf` list for the response status `401`
  - removed `subschema #1, subschema #2` from the `error/code` response property `oneOf` list for the response status `422`
  - removed `subschema #1, subschema #2` from the `error/param` response property `oneOf` list for the response status `400`
  - removed `subschema #1, subschema #2` from the `error/param` response property `oneOf` list for the response status `401`
  - removed `subschema #1, subschema #2` from the `error/param` response property `oneOf` list for the response status `422`
- **2026-10-02** `b830b79cfd52`: 3 breaking, 4 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 `401`
  - the response's body type changed from no type to `object` for status `422`
  - added the non-success response with the status `403`
  - added the required property `error` to the response with the `400` status
  - added the required property `error` to the response with the `401` status
  - added the required property `error` to the response with the `422` status
- **2026-09-17** `6fa8242da8c2`: 1 warning, 1 info
  - deleted the `header` request parameter `Authorization`
  - the endpoint scheme security `RespanApiKey` was added to the API
- **2026-09-12** `22b868ef3f22`: 1 info
  - api operation id `create-response` removed and replaced with `gateway_createResponse`

---

[Operation](https://skmtc.dev/respan/apis/respan-api/docs/api/responses/post.md) - [API](https://skmtc.dev/respan/apis/respan-api.md) - [Page](https://skmtc.dev/respan/apis/respan-api/changes/api/responses/post)