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evm-withdraw

Claim TAO deposited to the coldkey's truncated EVM mirror.

Every native account controls one EVM address: the first 20 bytes of its public key (the truncated mapping). TAO sent from MetaMask to that address's mirror can be pulled into the native account with this call — the EVM-to-substrate path that needs no EVM gas. The flow: send TAO from the EVM wallet to the address shown by btcli evm deposit-address, then claim it with btcli evm claim-deposit (or btcli tx evm-withdraw). This is not btcli evm send-to-ss58, which spends from a stored EVM key via the balance-transfer precompile. Fails if the mirror holds less than the amount.

Signer	Pallet	Wraps
`coldkey`	EVM	`EVM.withdraw`

Parameters

Parameter	Type	Required	Description
`amount_tao`	number \| `"all"`	yes	How much TAO to pull from the mirror.

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

CLI

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

btcli tx evm-withdraw \
  --amount-tao <amount|all> --dry-run
btcli tx evm-withdraw \
  --amount-tao <amount|all> -w my_coldkey

Python

import bittensor as sub
from bittensor.wallet import Wallet

wallet = Wallet(name="my_coldkey", hotkey="my_hotkey")
intent = sub.EvmWithdraw(amount_tao=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:

await client.execute_tool("evm_withdraw", {...}, wallet)