state_getKeys

Description#

Returns all storage keys with a given prefix. Use this to discover accounts, vToken positions, or other on-chain items before fetching values with state_getStorage.

Parameters#

Parameter	Type	Required	Description
`prefix`	string	Yes	Hex-encoded storage key prefix
`blockHash`	string	No	Block hash for historical queries

Returns#

Array of matching hex-encoded storage keys.

Request Example#

{
  "jsonrpc": "2.0",
  "method": "state_getKeys",
  "params": [
    "0x26aa394eea5630e07c48ae0c9558cef7",
    null
  ],
  "id": 1
}

Response Example#

{
  "jsonrpc": "2.0",
  "result": [
    "0x26aa394eea5630e07c48ae0c9558cef7b6a7c9a35a95a160cb4cad330558dfa56d6f646c755b98a7afd0913860592153322b957be394a0619f20b32679ac1014",
    "0x26aa394eea5630e07c48ae0c9558cef7c8e63e63a001c280f6dc809625f6ce9c53c51e645dd0a2c3e0800a9c53aac6ffe81912f6526f364eb8e4a36c2e304931"
  ],
  "id": 1
}

Code Examples#

Python
JavaScript

keys = substrate.rpc_request(
    method='state_getKeys',
    params=['0x26aa394eea5630e07c48ae0c9558cef7', None]
)["result"]
print(len(keys))

const keyPrefix = api.registry.createType('StorageKey', 'System', 'Account').toHex();
const keys = await api.rpc.state.getKeys(keyPrefix, null);
console.log('Found', keys.length, 'System.Account entries');

Tips#

For large datasets prefer state_getKeysPaged to avoid stress-testing nodes.
Combine with Bifrost-specific prefixes (e.g., Omnipool or Farming) to iterate liquidity pools and reward schedules.