# List demand signals

> Demand signals pushed for the workspace, newest first, a page at a time. Add genus to see one genus, and current=true as well to get its current demand as a single reading; that answer is never paged, and meta.next_cursor is always null.

Source: https://docs.xplantpro.com/docs/api/tasks/list-demand-signals

`GET https://app.xplantpro.com/api/v1/tasks/demand`

- Required scope: `read:tasks`
- Credentials: workspace API key (`xpk_`)
- Idempotency-Key: ignored on this endpoint

## Query parameters

| Name | Type | Required | Description |
| --- | --- | --- | --- |
| `genus` | string | No | Only signals for this genus. |
| `current` | `"true"` | No | With `genus`, return the genus's current demand as a single reading instead of its history. |
| `limit` | integer | No | Page size. Values above 200 are capped at 200. Default `50`. From 1 to 200. |
| `offset` | integer | No | Number of records to skip. Prefer `cursor` where a list offers it: an offset shifts when records are added ahead of it. Default `0`. At least 0. |
| `cursor` | string | No | Continue from the previous page: pass its `meta.next_cursor` unchanged, with the same filters. Treat it as opaque. Not combinable with `offset`. Up to 2048 characters. |

## Example

**curl**

```bash
curl "https://app.xplantpro.com/api/v1/tasks/demand?genus=Alocasia&current=true" \
  -H "Authorization: Bearer $XPLANT_API_KEY"
```

**JavaScript**

```js
import { XPlantClient } from "@shmaplex/xplant-sdk";

const client = new XPlantClient({ apiKey: process.env.XPLANT_API_KEY });

const signals = await client.taskDemand.list({ genus: "Alocasia", current: true });
```

**Python**

```python
import os
import requests

resp = requests.get(
    "https://app.xplantpro.com/api/v1/tasks/demand",
    headers={"Authorization": f"Bearer {os.environ['XPLANT_API_KEY']}"},
    params={"genus": "Alocasia", "current": True},
    timeout=10,
)
body = resp.json()
if not body["ok"]:
    raise RuntimeError(f"{resp.status_code} {body['code']}: {body['error']}")
signals = body["data"]
```

## Response

`200` with `{ "ok": true, "data": … }`. `data` is an array. To get the next page, pass `meta.next_cursor` back as `cursor`; it is `null` on the last page. See [Pagination](https://docs.xplantpro.com/docs/pagination.md).

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `id` | string | Yes | The signal's id — or `current` on the reading `current=true` returns. |
| `genus` | string | Yes | — |
| `source_type` | string \| null | Yes | — |
| `demand_score` | number | Yes | — |
| `source` | string | Yes | — |
| `observed_at` | string | Yes | — |
| `created_at` | string | Yes | — |

```json title="Response"
{
  "ok": true,
  "data": [
    {
      "id": "c41e8a07-93d2-4b6f-8e15-7a2d0f9b3c58",
      "genus": "Alocasia",
      "source_type": "tissue",
      "demand_score": 42,
      "source": "storefront",
      "observed_at": "2026-09-24T00:00:00.000Z",
      "created_at": "2026-09-24T00:05:11.000Z"
    }
  ]
}
```

The envelope can also carry `meta`:

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `next_cursor` | string \| null | Yes | Pass as `cursor` to fetch the next page. `null` means this is the last page. |

| Response header | Meaning |
| --- | --- |
| `X-Request-Id` | Identifies this request. Include it when you contact support. |

## Errors

| Status | Code | When |
| --- | --- | --- |
| `401` | `UNAUTHORIZED` | The key is missing, malformed or revoked, or its owner is no longer a member of the workspace. |
| `402` | `PAID_PLAN_REQUIRED` | The workspace's plan does not include the API. The full API is included with xPlant+ Teams and Enterprise; on Hobby and Pro Lab, keys can connect devices only. |
| `403` | `FORBIDDEN` | The key lacks a scope this operation requires, or its owner's current role in the workspace cannot use it — a key never does more than its owner can in xPlant. `error` names the scope, and for a role, the role it needs. |
| `403` | `DEVICE_TOKEN_NOT_ACCEPTED` | A device token was sent; this operation needs a workspace API key. |
| `422` | `VALIDATION_ERROR` | Both `cursor` and `offset` were sent; use one. |
| `422` | `INVALID_CURSOR` | The cursor is malformed, or came from a different list or different filters. Start again without it. |
| `429` | `RATE_LIMIT_EXCEEDED` | Too many requests for this key, device token or workspace. Wait `Retry-After` seconds. |
| `500` | `DEMAND_QUERY_FAILED` | The signals could not be read. Retry later. |

Branch on `code`, never on the `error` text. See [Errors](https://docs.xplantpro.com/docs/errors.md).