transfer_keep_alive
Call v101 → current #3Transfers TAO while ensuring sender account stays alive.
View calls on chainCall Workflow
This diagram shows the call execution flow: starting with transfer_keep_alive, passing through validation
(signature, nonce, mortality, fee payment), then pre-dispatch checks, followed by dispatch which emits events: Transfer and modifies storage: Account, and finally post-dispatch where ExtrinsicSuccess is emitted and fees are settled.
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From Chain Metadata
Same as the [`transfer`] call, but with a check that the transfer will not kill the origin account. 99% of the time you want [`transfer`] instead. [`transfer`]: struct.Pallet.html#method.transfer
Input Parameters
| # | Name | Type | Description |
|---|---|---|---|
| 0 | dest | MultiAddress | Recipient account address |
| 1 | value | Compact<u64> Cpt | Amount to transfer (RAO, ÷10⁹ for TAO) (RAO -> TAO (/ 10^9)) |
Permissions
Origin
Unknown
Required Role
Requirements
- Sender has sufficient free balance
- Sender will retain existential deposit after transfer
- Recipient account can receive funds
Effects
Code Examples
import { ApiPromise, WsProvider } from "@polkadot/api";
import { stringCamelCase } from "@polkadot/util";
const provider = new WsProvider("wss://entrypoint-finney.opentensor.ai:443");
const api = await ApiPromise.create({ provider });
// Build transfer_keep_alive call
const dest = 0 as any /* MultiAddress */;
const value = 0;
const call = api.tx[stringCamelCase("Balances")][stringCamelCase("transfer_keep_alive")](
dest,
value
);On-Chain Activity
Usage Frequency
●●●●●○ Core 1M–10M extrinsics
Primary protocol calls
#21 most used call
Success Rate Near-certain
Over 95% of submissions succeed
As of block 7,429,232
Runtime Info
- Pallet Index
- 5
- Call Index
- 3
- First Version
- v101
- Current Version
- v393