# Get Collection

GET /api/v2/projects/{projectId}/knowledge/collections/{id}

Fetches a single collection by ID. Returns `null` rather than 404 when nothing matches.

## Request

- projectId: string, path, required — ID of the project that owns the collection.
- id: string, path, required — ID of the collection to fetch.
- helpCenterId: string, query, required — ID of the help center the collection belongs to.

## Response

- 200: Successful response
  - createdAt: string, required
  - helpCenterId: string, required
  - id: string, required
  - name: string, required
  - order: integer, required
  - projectId: string, required
  - updatedAt: string, required
  - description: string
  - icon: string
  - parentId: string
  - url: string
- 400: Invalid input data
- 401: Authorization not provided
- 403: Insufficient access
- 404: Not found
- 500: Internal server error