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

# Delete a hub

> Deletes a knowledge hub. The removal is soft: the hub stops appearing in any endpoint and stops grounding campaigns, and its knowledge store is retained. The default hub refuses deletion (409 `KNOWLEDGE_HUB_DEFAULT_UNDELETABLE`) — make another hub the default first. A hub whose first build has not produced a knowledge store yet — one still `processing`, or a `draft` whose build failed — cannot be deleted and answers 409 `KNOWLEDGE_HUB_NOT_READY`. Deleting a hub that is already deleted answers 404.

Errors:
- `404` `KNOWLEDGE_HUB_NOT_FOUND` — No hub with that id, it was already deleted, or it belongs to another team.
- `409` `KNOWLEDGE_HUB_DEFAULT_UNDELETABLE` — The hub is the default one; make another hub the default first.
- `409` `KNOWLEDGE_HUB_NOT_READY` — The hub is still building or its build failed before a knowledge store existed, so it cannot be deleted.
- `422` `VALIDATION_FAILED` — hubId is not a 24-character hex id.
- `429` `RATE_LIMITED` — More than 30 knowledge-hub/campaign requests in a minute (or 1000 in a day). Knowledge hubs share the campaigns bucket.

Requires one of the following token scopes: campaigns.



## OpenAPI

````yaml /openapi.json delete /business/knowledge-hubs/{hubId}
openapi: 3.1.0
info:
  title: Fuse Business API
  version: 1.0.0
  description: >-
    External API for lists, campaigns, prospect search and contacts.
    Authenticate with your API token as HTTP Basic. All paths are under /api/v1.
servers:
  - url: https://api.tryfuse.ai/api/v1
    description: Production
security:
  - basicAuth: []
tags:
  - name: Lists
  - name: Custom columns
  - name: Smart columns
  - name: Exports
  - name: Campaigns
  - name: Knowledge hubs
  - name: Analytics
  - name: Website intent
  - name: Account
  - name: Prospect search
  - name: Campaign steps
  - name: Scheduled sends
  - name: Campaign templates
  - name: Agents
  - name: Research
  - name: Company search
  - name: Saved searches
  - name: Folders
  - name: Contacts
paths:
  /business/knowledge-hubs/{hubId}:
    delete:
      tags:
        - Knowledge hubs
      summary: Delete a hub
      description: >-
        Deletes a knowledge hub. The removal is soft: the hub stops appearing in
        any endpoint and stops grounding campaigns, and its knowledge store is
        retained. The default hub refuses deletion (409
        `KNOWLEDGE_HUB_DEFAULT_UNDELETABLE`) — make another hub the default
        first. A hub whose first build has not produced a knowledge store yet —
        one still `processing`, or a `draft` whose build failed — cannot be
        deleted and answers 409 `KNOWLEDGE_HUB_NOT_READY`. Deleting a hub that
        is already deleted answers 404.


        Errors:

        - `404` `KNOWLEDGE_HUB_NOT_FOUND` — No hub with that id, it was already
        deleted, or it belongs to another team.

        - `409` `KNOWLEDGE_HUB_DEFAULT_UNDELETABLE` — The hub is the default
        one; make another hub the default first.

        - `409` `KNOWLEDGE_HUB_NOT_READY` — The hub is still building or its
        build failed before a knowledge store existed, so it cannot be deleted.

        - `422` `VALIDATION_FAILED` — hubId is not a 24-character hex id.

        - `429` `RATE_LIMITED` — More than 30 knowledge-hub/campaign requests in
        a minute (or 1000 in a day). Knowledge hubs share the campaigns bucket.


        Requires one of the following token scopes: campaigns.
      operationId: deleteKnowledgeHub
      parameters:
        - name: hubId
          in: path
          required: true
          description: >-
            24-character hex id of the knowledge hub (from GET
            /business/knowledge-hubs).
          schema:
            type: string
            description: >-
              24-character hex id of the knowledge hub (from GET
              /business/knowledge-hubs).
      responses:
        '204':
          description: Deleted
          headers:
            RateLimit-Limit:
              schema:
                type: integer
              description: Requests permitted in the current window.
            RateLimit-Remaining:
              schema:
                type: integer
              description: Requests remaining in the current window.
            RateLimit-Reset:
              schema:
                type: integer
              description: Seconds until the current window resets.
        '400':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '402':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '403':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '409':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '422':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '429':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '500':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
      security:
        - basicAuth: []
components:
  schemas:
    Error:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
            message:
              type: string
            param:
              type:
                - string
                - 'null'
            doc_url:
              type:
                - string
                - 'null'
            request_id:
              type:
                - string
                - 'null'
          required:
            - code
            - message
      required:
        - error
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
      description: >-
        Your API token (`af_…`) as the Basic-auth username, with an empty
        password.

````