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 AccountIdLookupOf<T> | Recipient account address |
| 1 | value | Compact<u64> Cpt T::Balance | 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
// ----------------------------------------------------------------------
// HEADS UP: 1 arg below has a complex type with no usable default.
// Look for `undefined as any` and replace it with real value
// before running — the snippet compiles, but will fail at runtime as-is.
// ----------------------------------------------------------------------
import { createClient, Binary } from "polkadot-api";
import { getWsProvider } from "polkadot-api/ws";
import { sub } from "@polkadot-api/descriptors"; // generated by: npx papi add sub -w wss://entrypoint-finney.opentensor.ai:443
const client = createClient(getWsProvider("wss://entrypoint-finney.opentensor.ai:443"));
const api = client.getTypedApi(sub);
// Build transfer_keep_alive call (typed, named args)
const dest = undefined as any /* MultiAddress — replace with real value */;
const value = 0n;
const tx = api.tx.Balances.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
- v411