---
title: "Create Response"
method: POST
path: "/v1/responses"
tags: ["responses"]
---

# Create Response

`POST /v1/responses`

OpenAI-compatible Responses endpoint.

## Request body

- ResponsesRequest — OpenAI Responses API-compatible request.
  - `input` unknown, required
  - `model` string, required
  - `stream` boolean
  - `user` string, nullable

## Response `200`

Successful Response

- unknown

## Other responses

- `422` — Validation Error

## Changes

- **2026-04-17** `0f43605bdc13` — 32 warning, 1 info
  - removed the request property `background`
  - removed the request property `conversation`
  - removed the request property `frequency_penalty`
  - removed the request property `guardrails`
  - …29 more

[Change history](https://skmtc.dev/mozilla-ai/apis/otari/changes/v1/responses/post.md)

---

[API](https://skmtc.dev/mozilla-ai/apis/otari.md) · [All operations](https://skmtc.dev/mozilla-ai/apis/otari/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/mozilla-ai/otari/revisions/bb754bbf3e78/schema)