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

# Delete a category

> Delete a category from this knowledge base's taxonomy.

Its documents are NOT deleted: they, and their topics, are reassigned to uncategorized first, then the category is soft-deleted.

Idempotent: deleting one that is already gone returns `deleted: false` rather than 404.



## OpenAPI

````yaml /api-reference/openapi.json delete /api/v2/knowledge_bases/{kb_id}/categories/{category_id}
openapi: 3.1.0
info:
  title: EverOS Cloud Memory API
  version: 2.0.0
  license:
    name: Apache-2.0
    identifier: Apache-2.0
  contact:
    name: EverMind AI
    email: service@evermind.ai
    url: https://github.com/EverMind-AI/everos-cloud-sdk-python
  description: >-
    Official Python client for the EverOS Cloud Memory API. Add, search,
    retrieve, and manage long-term memory for your AI applications over a typed
    interface (pydantic v2, with full type hints). Install and usage guides:
    https://github.com/EverMind-AI/everos-cloud-sdk-python
servers:
  - url: https://api.evermind.ai
    description: Production
security:
  - BearerAuth: []
paths:
  /api/v2/knowledge_bases/{kb_id}/categories/{category_id}:
    delete:
      tags:
        - Knowledge
      summary: Delete a category
      description: >-
        Delete a category from this knowledge base's taxonomy.


        Its documents are NOT deleted: they, and their topics, are reassigned to
        uncategorized first, then the category is soft-deleted.


        Idempotent: deleting one that is already gone returns `deleted: false`
        rather than 404.
      operationId: deleteCategory
      parameters:
        - name: kb_id
          in: path
          required: true
          schema:
            type: string
            title: Kb Id
        - name: category_id
          in: path
          required: true
          schema:
            type: string
            title: Category Id
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SuccessEnvelope_CategoryDeleteData_'
        '401':
          description: Missing or invalid bearer token.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GatewayError'
        '403':
          description: >-
            Authenticated but not permitted — either rejected by the auth
            service, or the account's memory API version does not match the
            interface version implied by the path (a v1 account calling an
            /api/v2 route).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GatewayError'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
        '429':
          description: Rate limit or quota exceeded.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GatewayError'
        '503':
          description: >-
            The gateway could not reach the authentication service. Transient —
            retry with backoff.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GatewayError'
components:
  schemas:
    SuccessEnvelope_CategoryDeleteData_:
      properties:
        request_id:
          type: string
          title: Request Id
          description: Request trace id (peer to data)
        data:
          $ref: '#/components/schemas/CategoryDeleteData'
          description: Endpoint-defined business result
      type: object
      required:
        - request_id
        - data
      title: SuccessEnvelope[CategoryDeleteData]
    GatewayError:
      type: object
      additionalProperties: true
      description: >-
        Gateway error body. NOTE: shape is not yet uniform across auth/quota/
        rate-limit paths — treat fields as best-effort. Commonly includes a
        `code`/`message` (flat) or an `error` object/string with a `message`.
      title: GatewayError
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
          description: One entry per field that failed validation.
      type: object
      title: HTTPValidationError
    CategoryDeleteData:
      properties:
        id:
          type: string
          title: Id
          description: Deleted category id
        deleted:
          type: boolean
          title: Deleted
          description: True if a live category was soft-deleted; False if absent
      type: object
      required:
        - id
        - deleted
      title: CategoryDeleteData
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
          description: Path to the offending field, from the body root.
        msg:
          type: string
          title: Message
          description: What is wrong with it.
        type:
          type: string
          title: Error Type
          description: Machine-readable validation-error kind.
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: 'API key issued by EverOS, sent as `Authorization: Bearer <api_key>`.'

````