> ## 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. # Re-crawl one of the hub's websites > Re-crawls one of the hub's websites and regenerates the knowledge pages built from it (202). Pass a URL that is already one of the hub's websites — from `websites[].url` in the hub detail; the match ignores scheme and `www.`, and a URL the hub does not have answers 404 `KNOWLEDGE_HUB_WEBSITE_NOT_FOUND`. Only the URL you pass is re-crawled: subpages the crawler already discovered from it are NOT re-crawled, and the pages built from them keep their existing text. When the website was added with `includeSubPages`, a refresh still picks up subpages that are new since the last crawl. To refresh a subpage, pass that subpage's own URL — every discovered subpage is itself one of the hub's `websites`. The hub flips to `status` `processing` at once; poll `GET /business/knowledge-hubs/{hubId}` until it is `complete`. Only the hub's owner can refresh, at most 3 times per minute and 25 per day on top of the shared rate bucket. Hubs built before knowledge pages cannot be refreshed (409 `KNOWLEDGE_HUB_PAGES_UNAVAILABLE`). Errors: - `404` `KNOWLEDGE_HUB_NOT_FOUND` — No hub with that id, it was deleted, or it belongs to another team. - `404` `KNOWLEDGE_HUB_WEBSITE_NOT_FOUND` — `url` is not one of the hub's websites. - `409` `KNOWLEDGE_HUB_NOT_READY` — The hub is still building, or is already processing another change. - `409` `KNOWLEDGE_HUB_PAGES_UNAVAILABLE` — The hub predates knowledge pages and cannot be refreshed. - `403` `KNOWLEDGE_HUB_OWNER_ONLY` — You can read this teammate's hub but only its owner can refresh it. - `422` `VALIDATION_FAILED` — url missing or outside 4-2048 characters. - `500` `UNEXPECTED_ERROR` — The refresh workflow could not be enqueued; the hub is left complete — retry. - `429` `RATE_LIMITED` — The shared campaigns bucket was exceeded, or more than 3 refreshes in a minute / 25 in a day. Requires one of the following token scopes: campaigns. ## OpenAPI ````yaml /openapi.json post /business/knowledge-hubs/{hubId}/refresh 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}/refresh: post: tags: - Knowledge hubs summary: Re-crawl one of the hub's websites description: >- Re-crawls one of the hub's websites and regenerates the knowledge pages built from it (202). Pass a URL that is already one of the hub's websites — from `websites[].url` in the hub detail; the match ignores scheme and `www.`, and a URL the hub does not have answers 404 `KNOWLEDGE_HUB_WEBSITE_NOT_FOUND`. Only the URL you pass is re-crawled: subpages the crawler already discovered from it are NOT re-crawled, and the pages built from them keep their existing text. When the website was added with `includeSubPages`, a refresh still picks up subpages that are new since the last crawl. To refresh a subpage, pass that subpage's own URL — every discovered subpage is itself one of the hub's `websites`. The hub flips to `status` `processing` at once; poll `GET /business/knowledge-hubs/{hubId}` until it is `complete`. Only the hub's owner can refresh, at most 3 times per minute and 25 per day on top of the shared rate bucket. Hubs built before knowledge pages cannot be refreshed (409 `KNOWLEDGE_HUB_PAGES_UNAVAILABLE`). Errors: - `404` `KNOWLEDGE_HUB_NOT_FOUND` — No hub with that id, it was deleted, or it belongs to another team. - `404` `KNOWLEDGE_HUB_WEBSITE_NOT_FOUND` — `url` is not one of the hub's websites. - `409` `KNOWLEDGE_HUB_NOT_READY` — The hub is still building, or is already processing another change. - `409` `KNOWLEDGE_HUB_PAGES_UNAVAILABLE` — The hub predates knowledge pages and cannot be refreshed. - `403` `KNOWLEDGE_HUB_OWNER_ONLY` — You can read this teammate's hub but only its owner can refresh it. - `422` `VALIDATION_FAILED` — url missing or outside 4-2048 characters. - `500` `UNEXPECTED_ERROR` — The refresh workflow could not be enqueued; the hub is left complete — retry. - `429` `RATE_LIMITED` — The shared campaigns bucket was exceeded, or more than 3 refreshes in a minute / 25 in a day. Requires one of the following token scopes: campaigns. operationId: refreshKnowledgeHubWebsite 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). requestBody: required: true content: application/json: schema: type: object properties: url: type: string minLength: 4 maxLength: 2048 description: >- One of the hub's website URLs, as listed in the hub detail (matched ignoring scheme and www); a URL that is not part of the hub answers 404. required: - url responses: '202': 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 - status properties: id: type: string status: type: string enum: - processing description: >- The hub is processing the refresh; poll the hub detail until it is complete. example: knowledgeHub: id: 68a1f8509c41d20014b3ee41 status: processing '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. ````