---
title: "Create assistant for model (if missing) and return it"
method: POST
path: "/v1/calls/create"
tags: ["Calls"]
---

# Create assistant for model (if missing) and return it

`POST /v1/calls/create`

## Request body

- CreateCallRequestDto
  - `modelId` string, required — Model ID to create assistant for
  - `overrides` object — Optional overrides for assistant creation

## Response `200`

Assistant created or existing returned

- Assistant

## Other responses

- `400` — User not found in context or validation failed

---

[API](https://skmtc.dev/miaai/apis/backend-template-api.md) · [All operations](https://skmtc.dev/miaai/apis/backend-template-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/miaai/backend-template-api/revisions/2a8d88a5124f/schema)