# set-childkey-take (/docs/tx/set-childkey-take)

The childkey take is the fraction of emissions a child hotkey keeps from
the stake weight its parents delegate to it, before passing the remainder
through. It is set per subnet, unlike the global delegate take. Signed by
the coldkey that owns the child hotkey. The chain enforces both its
minimum and maximum childkey take bounds, and rate-limits only increases
— decreases apply immediately, so lowering the take is always available.

| Signer    | Pallet          | Wraps                               |
| --------- | --------------- | ----------------------------------- |
| `coldkey` | SubtensorModule | `SubtensorModule.set_childkey_take` |

## Parameters [#parameters]

| Parameter     | Type    | Required | Description                                                                                                                    |
| ------------- | ------- | -------- | ------------------------------------------------------------------------------------------------------------------------------ |
| `netuid`      | integer | yes      | Subnet the childkey take applies to.                                                                                           |
| `take`        | integer | yes      | New take as a u16 proportion (fraction of 65535, e.g. 5898 is about 9 percent). The chain enforces its configured take bounds. |
| `hotkey_ss58` | string  | no       | Hotkey the operation applies to.                                                                                               |

Address parameters (`--hotkey`, `--coldkey`, `--dest`, ...) accept a raw ss58
address, an address-book or proxy-book name, or a local wallet/hotkey name.

## CLI [#cli]

Preview with `--dry-run` (shows fee, effects, and policy result without
submitting), then submit:

```bash
btcli tx set-childkey-take \
  --netuid <int> \
  --take <int> --dry-run
btcli tx set-childkey-take \
  --netuid <int> \
  --take <int> -w my_coldkey
```

## Python [#python]

```python
import bittensor as sub
from bittensor.wallet import Wallet

wallet = Wallet(name="my_coldkey", hotkey="my_hotkey")
intent = sub.SetChildkeyTake(netuid=1, take=0)

async with sub.Client("finney") as client:
    plan = await client.plan(intent, wallet)   # fee, effects, policy — no submission
    result = await client.execute(intent, wallet)
    if not result.success:
        print(result.error.code, result.error.remediation)
```

Or build it by op name, as an agent would:

```python
await client.execute_tool("set_childkey_take", {...}, wallet)
```