# Read one tab of a board

> Page: https://docs.plotwork.dev/api/get-orgs-org-boards-board-tabs-tab. Index of every page: https://docs.plotwork.dev/llms.txt

The tab with its whole source and version, and with since, what changed after that version: who changed it and what was added, removed or changed.

`GET /orgs/{org}/boards/{board}/tabs/{tab}`

## TL;DR

| Question | Answer |
|---|---|
| What does it do? | Read one tab of a board. |
| What does it take? | `org`, `board`, `tab` in the path, and `since` in the query string. |
| What does it return? | Status 200 with a body of type [`BoardTabRead`](https://docs.plotwork.dev/api/schemas.md#boardtabread). |
| What can go wrong? | `401` not signed in; `403` boards are not turned on for this organisation (boards.not_enabled), the caller may look but not change it (boards.forbidden), or the request came from an origin that may not make changes; `404` no such organisation, board or tab, or the board is not open to the caller: the cases look alike; `429` too many requests; `503` organisations or boards are not set up on this server. Every failure uses the one error envelope. |

## What it does

The tab with its whole source and version, and with since, what changed after that version: who changed it and what was added, removed or changed. Anyone the board is open to may read.

## Path parameters

| Field | Type | Required | Description |
|---|---|---|---|
| `org` | `string` | yes | The organisation's id or its slug. |
| `board` | `string` | yes | The board's id: 22 letters and digits. |
| `tab` | `string` | yes | The tab's id: 12 letters and digits. |

## Query parameters

| Field | Type | Required | Description |
|---|---|---|---|
| `since` | `integer \| null` | no |  |

## Responses

| Status | Meaning | Body |
|---|---|---|
| 200 | The tab. | [`BoardTabRead`](https://docs.plotwork.dev/api/schemas.md#boardtabread) |
| 401 | Not signed in. | [`ErrorResponse`](https://docs.plotwork.dev/api/schemas.md#errorresponse) |
| 403 | Boards are not turned on for this organisation (boards.not_enabled), the caller may look but not change it (boards.forbidden), or the request came from an origin that may not make changes. | [`ErrorResponse`](https://docs.plotwork.dev/api/schemas.md#errorresponse) |
| 404 | No such organisation, board or tab, or the board is not open to the caller: the cases look alike. | [`ErrorResponse`](https://docs.plotwork.dev/api/schemas.md#errorresponse) |
| 429 | Too many requests. | [`ErrorResponse`](https://docs.plotwork.dev/api/schemas.md#errorresponse) |
| 503 | Organisations or boards are not set up on this server. | [`ErrorResponse`](https://docs.plotwork.dev/api/schemas.md#errorresponse) |

## Response body

A 200 answer has the type [`BoardTabRead`](https://docs.plotwork.dev/api/schemas.md#boardtabread).

| Field | Type | Required | Description |
|---|---|---|---|
| `tab` | `BoardTab` | yes |  |
| `tab.id` | `string` | yes | at least 12 characters; at most 12 characters; pattern `^[0-9A-Za-z]+$`. |
| `tab.name` | `string` | yes |  |
| `tab.kind` | `string` | yes | The kind the source declares, such as flow. |
| `tab.position` | `number` | yes |  |
| `tab.version` | `integer` | yes |  |
| `tab.updatedAt` | `integer` | yes |  |
| `tab.updatedBy` | `string` | yes | Who changed it last: an email address, an agent and its member, or a key name. |
| `tab.library` | `object \| null` | yes |  |
| `tab.library.diagramId` | `string` | yes |  |
| `tab.library.version` | `integer` | yes |  |
| `tab.library.saved` | `boolean` | yes | True while the tab holds what was saved or imported. |
| `source` | `string` | yes |  |
| `changesSince` | `BoardHistoryEntry[]` | yes |  |
| `changesSince[].version` | `integer` | yes |  |
| `changesSince[].type` | `string` | yes |  |
| `changesSince[].actor` | `BoardActor` | yes |  |
| `changesSince[].actor.kind` | `"person" \| "agent" \| "key"` | yes |  |
| `changesSince[].actor.label` | `string` | yes |  |
| `changesSince[].counts` | `object` | yes |  |
| `changesSince[].counts.added` | `integer` | yes |  |
| `changesSince[].counts.removed` | `integer` | yes |  |
| `changesSince[].counts.renamed` | `integer` | yes |  |
| `changesSince[].counts.moved` | `integer` | yes |  |
| `changesSince[].counts.changed` | `integer` | yes |  |
| `changesSince[].at` | `integer` | yes |  |
| `changesSince[].restorable` | `boolean` | yes |  |

## See also

| Doc | Why |
|---|---|
| [API reference](https://docs.plotwork.dev/api/reference.md) | Every endpoint, and the error envelope |
| [Schemas](https://docs.plotwork.dev/api/schemas.md) | Every request and response type |
| [Tool reference](https://docs.plotwork.dev/mcp/tools.md) | The operations as callable tools |