---
title: DeviceHub Browse (Bulk Tag Discovery)
slug: api-docs/devicehub-browse-bulk-tag-discovery
docTags: 
createdAt: 2026-05-11T22:15:08.281Z
---

# DeviceHub Browse (Bulk Tag Discovery)

**UI trigger**: DeviceHub -> Browse -> Select tags -> Create All.

The Browse workflow auto-discovers a device's full address space (e.g. all OPC UA nodes or Modbus registers) and lets users select which ones to import as tags - without manually entering each one.

## Step table

| Step | API Name                          | Method | Endpoint / GraphQL Operation                                     | Input                              | Output / What to capture                                   |
| ---- | --------------------------------- | ------ | ---------------------------------------------------------------- | ---------------------------------- | ---------------------------------------------------------- |
| 1    | Create Browse Task                | `POST` | `{{edgeUrl}}/devicehub/v2` -> `CreateBrowseTask`                 | Device ID + browse params          | Browse Task `ID`                                           |
| 2    | Start Browse Task                 | `POST` | `{{edgeUrl}}/devicehub/v2` -> `StartBrowseTasks`                 | Browse Task `ID` from step 1       | Task starts crawling                                       |
| 3    | List Browse Tasks (poll)          | `POST` | `{{edgeUrl}}/devicehub/v2` -> `ListBrowseTasks`                  | -                                  | Poll until `Status = Completed`                            |
| 4    | Get Browse Task Folders           | `POST` | `{{edgeUrl}}/devicehub/v2` -> `BrowseTask_GetFoldersForTreeView` | Browse Task `ID`                   | Folder tree of discovered address space                    |
| 5    | Get Browse Folder Items           | `POST` | `{{edgeUrl}}/devicehub/v2` -> `BrowseTask_GetFolderItems`        | Folder path within the browse task | Items (tags/nodes) in that folder                          |
| 6    | Cart Add Items                    | `POST` | `{{edgeUrl}}/devicehub/v2` -> `Cart_AddItems`                    | Selected item IDs from step 5      | Items added to cart (`Added`, `Skipped`, `Updated` counts) |
| 6b   | Cart Update Properties (optional) | `POST` | `{{edgeUrl}}/devicehub/v2` -> `Cart_UpdateProperties`            | Cart item IDs + property overrides | Updated counts                                             |
| 7    | Cart Create All Registers         | `POST` | `{{edgeUrl}}/devicehub/v2` -> `Cart_CreateAllRegisters`          | No input - processes entire cart   | `Created`, `Skipped`, `Updated` counts - tags now exist    |

## Also useful

`Download Browse Tags` (`GET /devicehub/browsing/download_csv/task/{task_id}`) exports discovered tags to CSV before committing. Lets users review in Excel before creating.

## Driver support

Browse only works on drivers that support it (38 of \~146). OPC UA Advanced, AB Logix, Siemens S7CommPlus, and most modern Ethernet drivers do. Modbus (no enumeration capability), Generator (simulator), and several legacy serial drivers do not. See [Browse and Discovery](#) for the support matrix.

## See also

- [Browse and Discovery concept](#)
- [OPC UA Advanced Driver](#)