Protocol Info

Tokens

Account

Address Format

Acala uses the SS58 (Substrate) address format. Relevant SS58 prefixes are:

Acala: 10 (ss58 registry details)
Karura: 8 (ss58 registry details)
Mandala: 42

Existential Deposit

Acala uses an existential deposit (ED) to prevent dust accounts from bloating state. If an account drops below the ED, it will be removed from this account and be donated to the Treasury.

ED of native token ACA is configured in the runtime. Non-native tokens (DOT, aUSD, BTC etc) can be queried via SDK. The amount of ED can only be decreased, not increased, therefore it often starts with a higher number.

transfer and deposit in pallet_balances and orml_tokens will check the ED of the receiver account. A transaction may fail due to not meeting ED requirements, a typical one would be a user is swapping token A for token B, where token A balance no longer meets ED requirements. A front-end DApp shall perform checks and prompt user for such incidents.

Protocol Fees

Mint aUSD with DOT & lDOT:
- Liquidation penalty: 12%
- Stability Fee: 3%

Transaction Fees

Acala uses weight-based fees, unlike gas, are predictable and charged pre-dispatch. See the transaction fee page for more info.

Types

Type definitions allow the SDK to know how to serialize / deserialize blocks, transactions and events.

Acala's type definition bundle can be found here.

MultiLocation

You can use these MultiLocation to add Acala token assets to other parachains foreign token list.

Asset Name: Acala Dollar Asset Symbol: AUSD Decimals: 12 existentialDeposit: 0.1

{"parents": 1, "interior": {"X2": [{"Parachain": 2000}, {"GeneralKey": 0x0001} ]}}

Asset Name: Liquid DOT Asset Symbol: LDOT Decimals: 10 existentialDeposit: 0.05

{"parents": 1, "interior": {"X2": [{"Parachain": 2000}, {"GeneralKey": 0x0003} ]}}

Asset Name: Acala Native Token Asset Symbol: ACA Decimals: 12 existentialDeposit: 0.1

{"parents": 1, "interior": {"X2": [{"Parachain": 2000}, {"GeneralKey": 0x0000} ]}}

Autogenerated MultiLocations

JS SDK

Acala.js: https://github.com/AcalaNetwork/acala.js

Documentation: https://github.com/AcalaNetwork/acala.js/wiki

Please also refer to the documentation of polkadot.js.

Telemetry

https://telemetry.polkadot.io/#list/Acala

Polkadot apps

https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Facala-rpc.dwellir.com#/explorer

Explorer

https://acala.subscan.io/

PreviousAcala Network NextToken Transfer

Last updated 1 year ago

Account

Address Format

Existential Deposit

Acala uses an existential deposit (ED) to prevent dust accounts from bloating state. If an account drops below the ED, it will be removed from this account and be donated to the Treasury.