# swap-stake (/docs/tx/swap-stake)

Moves part of a position from the origin subnet to the destination subnet
while staying on the same hotkey: the alpha is swapped to TAO in the
origin pool and then to alpha in the destination pool, so both legs can
incur slippage. By default the call is slippage-protected: it fails
(`SlippageTooHigh`) instead of filling once the origin/destination price
ratio falls more than `rate_tolerance` (5%) below the ratio at submission
— raise the tolerance or set `slippage_protection` to False to execute at
any price. The two netuids must differ (`SameNetuid`). Use `move_stake`
when the hotkey should change too, and `remove_stake` plus `add_stake`
only if you want to control each leg separately.

| Signer    | Pallet          | Wraps                                                            |
| --------- | --------------- | ---------------------------------------------------------------- |
| `coldkey` | SubtensorModule | `SubtensorModule.swap_stake`, `SubtensorModule.swap_stake_limit` |

## Parameters [#parameters]

| Parameter             | Type              | Required | Description                                                                                                                                                                                                                        |
| --------------------- | ----------------- | -------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `hotkey_ss58`         | string            | yes      | Hotkey the stake is held on (the validator backing the position).                                                                                                                                                                  |
| `origin_netuid`       | integer           | yes      | Subnet the stake currently sits on.                                                                                                                                                                                                |
| `dest_netuid`         | integer           | yes      | Subnet the stake ends up on. When it differs from the origin, the position is swapped through both subnet pools, which can incur slippage on each leg.                                                                             |
| `amount_alpha`        | number \| `"all"` | yes      | How much of the origin position to swap across (an explicit amount; `all` is not accepted).                                                                                                                                        |
| `slippage_protection` | boolean           | no       | Bound the price the swap may execute at (on by default): the call fails (`SlippageTooHigh`) instead of filling once the pool price moves more than `rate_tolerance` from the price at submission. Disable to execute at any price. |
| `rate_tolerance`      | number            | no       | Maximum price move slippage protection accepts, as a fraction (0.05 = 5%). Ignored when slippage protection is disabled.                                                                                                           |

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 swap-stake \
  --hotkey <ss58|name> \
  --origin-netuid <int> \
  --dest-netuid <int> \
  --amount-alpha <amount|all> --dry-run
btcli tx swap-stake \
  --hotkey <ss58|name> \
  --origin-netuid <int> \
  --dest-netuid <int> \
  --amount-alpha <amount|all> -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.SwapStake(hotkey_ss58="5F...", origin_netuid=0, dest_netuid=0, amount_alpha=1.0)

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("swap_stake", {...}, wallet)
```