state_getKeysPaged

Returns storage keys with pagination on Asset Hub.

Use Cases

• Storage iteration - Enumerate storage map entries
• Data export - Bulk export chain data for native stablecoin transfers (USDC, USDT), DOT staking and governance, and cross-chain asset management via XCM
• Account enumeration - List all accounts

Parameters

Parameter	Type	Required	Description
prefix	String	Yes	Storage key prefix
count	Number	Yes	Maximum keys to return
startKey	String	No	Key to start after
blockHash	String	No	Block hash for historical query

Request

{
  "jsonrpc": "2.0",
  "method": "state_getKeysPaged",
  "params": ["0x...", 100],
  "id": 1
}

Code Examples

cURL

curl https://api-asset-hub-polkadot.n.dwellir.com/<YOUR_API_KEY>/YOUR_API_KEY \
  -X POST \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "method": "state_getKeysPaged",
    "params": ["0x26aa394eea5630e07c48ae0c9558cef7", 100],
    "id": 1
  }'

JavaScript

import { ApiPromise, WsProvider } from '@polkadot/api';

const provider = new WsProvider('wss://api-asset-hub-polkadot.n.dwellir.com/YOUR_API_KEY');
const api = await ApiPromise.create({ provider });

// Get all accounts (paginated)
const keys = await api.rpc.state.getKeysPaged(
  api.query.system.account.keyPrefix(),
  100
);

console.log('Found accounts:', keys.length);

await api.disconnect();

Related Methods

• state_getStorage - Get storage value
• state_queryStorageAt - Batch storage query