> ## 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. # A hub's full detail > The hub's full detail: its websites, its notes (with the ids the attachment endpoints address), its build status and whether it is the default hub. Readable by you and your teammates. `websites` lists the URLs you added together with the subpages the crawler discovered from them — a subpage carries the website it came from in `parentUrl`, and `lastCrawledAt` is null for a URL that has never been crawled successfully. `notes[].hasAttachment` tells you which notes have a document to download. Poll this endpoint while `status` is `processing`. Errors: - `404` `KNOWLEDGE_HUB_NOT_FOUND` — No hub with that id, it was deleted, or it belongs to another team (existence is never confirmed). - `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 get /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}: get: tags: - Knowledge hubs summary: A hub's full detail description: >- The hub's full detail: its websites, its notes (with the ids the attachment endpoints address), its build status and whether it is the default hub. Readable by you and your teammates. `websites` lists the URLs you added together with the subpages the crawler discovered from them — a subpage carries the website it came from in `parentUrl`, and `lastCrawledAt` is null for a URL that has never been crawled successfully. `notes[].hasAttachment` tells you which notes have a document to download. Poll this endpoint while `status` is `processing`. Errors: - `404` `KNOWLEDGE_HUB_NOT_FOUND` — No hub with that id, it was deleted, or it belongs to another team (existence is never confirmed). - `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: getKnowledgeHub 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: '200': description: Success 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. content: application/json: schema: type: object required: - knowledgeHub properties: knowledgeHub: type: object required: - id - name - companyName - status - isDefault - websites - notes - createdAt - updatedAt properties: id: type: - string - 'null' name: type: - string - 'null' description: >- Hub name; the placeholder "Processing..." while a hub created without a name is still building. companyName: type: - string - 'null' description: >- Company name derived from the crawled content; null until the build finishes. status: type: - string - 'null' enum: - processing - complete - draft - null description: >- processing = the crawl and page synthesis are running, complete = the hub is usable, draft = the hub is not built — either it was saved as a draft in the web app and never built, or its last build exhausted its retries, null = a hub the platform created automatically for a campaign. isDefault: type: boolean websites: type: array items: type: object required: - url - includeSubPages - isCompetitor - parentUrl - lastCrawledAt properties: url: type: - string - 'null' includeSubPages: type: boolean description: >- Whether the site's subpages were expanded when it was added. isCompetitor: type: boolean parentUrl: type: - string - 'null' description: >- Set on subpages the crawler discovered: the website they were collected from. null on a website you added yourself. lastCrawledAt: type: - string - 'null' format: date-time description: >- When this URL was last successfully crawled; null if it has never been crawled. description: >- The websites you added plus the subpages the crawler discovered from them (subpages carry parentUrl). notes: type: array items: type: object required: - id - text - filename - isCompetitor - hasAttachment properties: id: type: - string - 'null' description: >- Note id; the attachment endpoints address notes by it. text: type: - string - 'null' filename: type: - string - 'null' description: >- Label the note is cited by, and the key notes are merged on when the hub is updated. isCompetitor: type: boolean hasAttachment: type: boolean description: >- Whether the note carries a downloadable document. createdAt: type: - string - 'null' format: date-time updatedAt: type: - string - 'null' format: date-time example: knowledgeHub: id: 68a1f8509c41d20014b3ee41 name: Brightpay KB companyName: Brightpay status: complete isDefault: true websites: - url: https://brightpay.com includeSubPages: true isCompetitor: false parentUrl: null lastCrawledAt: '2026-08-09T04:01:13.461Z' - url: https://brightpay.com/pricing includeSubPages: false isCompetitor: false parentUrl: https://brightpay.com lastCrawledAt: null notes: - id: 68a1f8509c41d20014b3ee55 text: We sell payroll software to UK accountants. filename: positioning.md isCompetitor: false hasAttachment: true createdAt: '2026-06-01T12:00:00.000Z' updatedAt: '2026-08-25T11:48:39.044Z' '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. ````