> ## Documentation Index
> Fetch the complete documentation index at: https://docs.yume.cloud/llms.txt
> Use this file to discover all available pages before exploring further.

# Create chat

> Concrete view for creating a model instance.



## OpenAPI

````yaml /openapi/assistant.json post /v1/assistant/chat/
openapi: 3.0.3
info:
  title: Yume API — AI Ассистент
  version: 1.0.0
  description: SSE чат-шлюз и инструменты ассистента.
servers:
  - url: https://api.yume.cloud
    description: Production
  - url: https://api.stage.yume.cloud
    description: Stage
security: []
paths:
  /v1/assistant/chat/:
    post:
      tags:
        - chat
      summary: Create chat
      description: Concrete view for creating a model instance.
      operationId: chat_create
      parameters:
        - $ref: '#/components/parameters/TenantId'
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ChatStreamInput'
          application/x-www-form-urlencoded:
            schema:
              $ref: '#/components/schemas/ChatStreamInput'
          multipart/form-data:
            schema:
              $ref: '#/components/schemas/ChatStreamInput'
        required: true
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ChatStreamInput'
          description: ''
      security:
        - jwtAuth: []
components:
  parameters:
    TenantId:
      name: X-Tenant-Id
      in: header
      required: false
      schema:
        type: integer
      description: >-
        Компания, в контексте которой выполняется запрос — её id из `GET
        /v1/tenant/`. Пользователь должен состоять в этой компании: чужой id
        доступа к данным не даёт. Без заголовка компания определяется по домену
        запроса.
  schemas:
    ChatStreamInput:
      type: object
      properties:
        message:
          type: string
        session_id:
          type: string
          format: uuid
          nullable: true
        provider:
          allOf:
            - $ref: '#/components/schemas/ProviderEnum'
          default: anthropic
        tier:
          allOf:
            - $ref: '#/components/schemas/TierEnum'
          default: low
        model:
          type: string
        tools:
          type: array
          items:
            type: string
        thinking_effort:
          $ref: '#/components/schemas/ThinkingEffortEnum'
        page_context:
          type: string
        preset:
          type: string
      required:
        - message
    ProviderEnum:
      enum:
        - openai
        - anthropic
      type: string
      description: |-
        * `openai` - OpenAI
        * `anthropic` - Anthropic
    TierEnum:
      enum:
        - low
        - medium
        - high
      type: string
      description: |-
        * `low` - Низкое
        * `medium` - Среднее
        * `high` - Высокое
    ThinkingEffortEnum:
      enum:
        - low
        - medium
        - high
      type: string
      description: |-
        * `low` - Низкое
        * `medium` - Среднее
        * `high` - Высокое
  securitySchemes:
    jwtAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT

````