> ## Documentation Index > Fetch the complete documentation index at: https://docs.talqui.chat/llms.txt > Use this file to discover all available pages before exploring further. # List categories > Every category of the tenant's help center, drafts included — this is the authoring listing. The public one lives at `/v1/public/*` and only ever returns published documents. ## OpenAPI ````yaml /api/helpdesk.yaml get /v1/tenants/{tenantID}/categories openapi: 3.0.3 info: description: >- Help center API for the Talqui Helpdesk plugin. Two surfaces with different audiences: authenticated authoring routes under /v1/tenants/:tenantID, and anonymous public reads under /v1/public resolved from the request hostname. license: name: ISC url: https://opensource.org/license/isc-license-txt title: Talqui Helpdesk API version: 0.9.0 servers: - description: Production url: https://plugins-api.talqui.chat/helpdesk security: [] tags: - name: Install - name: Public - name: Helpdesk - name: Categories - name: Articles paths: /v1/tenants/{tenantID}/categories: get: tags: - Categories summary: List categories description: >- Every category of the tenant's help center, drafts included — this is the authoring listing. The public one lives at `/v1/public/*` and only ever returns published documents. operationId: ListCategoriesController parameters: - in: path name: tenantID required: true schema: description: The tenant the help center belongs to. format: uuid pattern: >- ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$ type: string responses: '200': content: application/json: schema: additionalProperties: false properties: categories: items: additionalProperties: false properties: categoryArticleCount: maximum: 9007199254740991 minimum: 0 type: integer categoryDescription: type: string categoryID: type: string categoryIconUrl: nullable: true type: string categoryOrder: type: number categorySlug: type: string categoryStatus: enum: - draft - published type: string categoryTitle: type: string createdAt: format: date-time pattern: >- ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ type: string createdBy: type: string deletedAt: format: date-time nullable: true pattern: >- ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ type: string helpdeskID: type: string tenantID: type: string updatedAt: format: date-time pattern: >- ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ type: string updatedBy: type: string required: - categoryID - helpdeskID - tenantID - categorySlug - categoryTitle - categoryDescription - categoryIconUrl - categoryOrder - categoryStatus - createdAt - createdBy - updatedAt - updatedBy - deletedAt - categoryArticleCount type: object type: array required: - categories type: object description: Response for status 200. '400': content: application/json: schema: properties: errors: items: $ref: '#/components/schemas/MissingTenantIDError' maxItems: 1 minItems: 1 type: array required: - errors type: object description: >- MissingTenantIDError (error_code 1001): tenantID absent from the URL. '404': content: application/json: schema: properties: errors: items: $ref: '#/components/schemas/HelpdeskNotFoundError' maxItems: 1 minItems: 1 type: array required: - errors type: object description: >- HelpdeskNotFoundError (error_code 1107): the tenant has no help center yet. '422': content: application/json: schema: properties: errors: items: $ref: '#/components/schemas/TenantNotConnectedError' maxItems: 1 minItems: 1 type: array required: - errors type: object description: >- TenantNotConnectedError (error_code 1000): the tenant is not connected to the plugin. '500': content: application/json: schema: properties: errors: items: $ref: '#/components/schemas/UnknownError' maxItems: 1 minItems: 1 type: array required: - errors type: object description: >- UnknownError (error_code 5999): Unexpected internal error not otherwise documented for this endpoint. security: - operatorAuth: [] - pluginConnectionAuth: [] - pluginAuth: [] components: schemas: MissingTenantIDError: additionalProperties: false properties: error: enum: - MissingTenantIDError type: string error_code: enum: - 1001 type: number message: example: tenantID is required. type: string statusCode: enum: - 400 type: number required: - statusCode - error - error_code - message type: object HelpdeskNotFoundError: additionalProperties: false properties: error: enum: - HelpdeskNotFoundError type: string error_code: enum: - 1107 type: number message: example: No help center answers on this address. type: string statusCode: enum: - 404 type: number required: - statusCode - error - error_code - message type: object TenantNotConnectedError: additionalProperties: false properties: error: enum: - TenantNotConnectedError type: string error_code: enum: - 1000 type: number message: example: This tenant is not connected to the plugin. type: string statusCode: enum: - 422 type: number required: - statusCode - error - error_code - message type: object UnknownError: additionalProperties: false properties: error: enum: - UnknownError type: string error_code: enum: - 5999 type: number message: example: For some unknown reason your request has not succeeded. type: string statusCode: enum: - 500 type: number required: - statusCode - error - error_code - message type: object securitySchemes: operatorAuth: bearerFormat: JWT description: >- Behalf of an Operator. The JWT issued by Talqui Core when an operator signs in. Send as `Authorization: Bearer `. scheme: bearer type: http pluginConnectionAuth: description: >- Behalf of a Plugin Connection. Issued when the Helpdesk plugin is installed on a tenant; scoped strictly to that one tenant. Send as `Authorization: PluginConnection base64(pluginConnectionID:pluginConnectionToken)`. in: header name: Authorization type: apiKey pluginAuth: description: >- Behalf of the Helpdesk plugin itself, reaching every tenant that installed it. Send as `Authorization: Plugin base64(pluginID:pluginToken)`. in: header name: Authorization type: apiKey ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.