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

# Write a Store item

> Store JSON data under a namespace and key. This reference documents the namespace, key and value fields handled by the server.



## OpenAPI

````yaml /api/openapi.sdk.json put /api/ai/store/items
openapi: 3.0.3
info:
  title: XpertAI SDK HTTP API
  version: 1.0.0
  description: >-
    Current HTTP endpoints used by the SDK guide. Authenticate with a
    server-side API Key using Authorization: Bearer <API_KEY> or x-api-key.
    These endpoints do not require ChatKit. The reference covers the guide
    examples, not every method exported by the SDK. Check deployment support
    before using additional fields.
servers:
  - url: https://api.xpertai.cn
    description: XpertAI API. Replace with your own API origin for private deployments.
security:
  - ApiKeyBearer: []
  - ApiKeyHeader: []
tags:
  - name: Assistants
  - name: Threads
  - name: Runs
  - name: Contexts
  - name: Store
paths:
  /api/ai/store/items:
    put:
      tags:
        - Store
      summary: Write a Store item
      description: >-
        Store JSON data under a namespace and key. This reference documents the
        namespace, key and value fields handled by the server.
      operationId: put_store_item
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                namespace:
                  type: array
                  items:
                    type: string
                  minItems: 1
                  description: >-
                    The first namespace segment is the agent ID. Segments must
                    not contain periods.
                key:
                  type: string
                value:
                  type: object
                  additionalProperties: true
              required:
                - namespace
                - key
                - value
            example:
              namespace:
                - 22222222-2222-4222-8222-222222222222
                - sdk-example
              key: key1
              value:
                value: 42
      responses:
        '200':
          description: Successful response.
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
              example:
                success: true
        '400':
          description: Invalid input, identifier mismatch or invalid operation state.
        '401':
          description: Missing or invalid API Key.
        '403':
          description: The caller cannot access the requested resource.
        '404':
          description: Resource not found or unavailable to the caller.
components:
  securitySchemes:
    ApiKeyBearer:
      type: http
      scheme: bearer
      description: Server-side API Key; do not expose it in browser code.
    ApiKeyHeader:
      type: apiKey
      in: header
      name: x-api-key

````

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