Function getChainAPI

getChainAPI<E extends Environment>(
env: E,
): Promise<ChainClient<PresetChains<E>>>
Get a chain client for a known environment with built-in descriptors and RPCs.

This is the zero-config path — no need to import descriptors or specify endpoints. For custom chains or BYOD descriptors, use createChainClient instead.

Returns the same ChainClient type as createChainClient, with assetHub, bulletin, and individuality chain keys.
Type Parameters
- E extends Environment
Parameters
- env: E
Returns Promise<ChainClient<PresetChains<E>>>
Example
```
import { getChainAPI } from "@polkadot-apps/chain-client";

const client = await getChainAPI("paseo");

// Fully typed — no descriptor imports needed
const account = await client.assetHub.query.System.Account.getValue(addr);
const fee = await client.bulletin.query.TransactionStorage.ByteFee.getValue();

// Raw client for advanced use (e.g., InkSdk for contracts)
import { createInkSdk } from "@polkadot-api/sdk-ink";
const inkSdk = createInkSdk(client.raw.assetHub, { atBest: true });

client.destroy();
```
- Defined in chain-client/src/presets.ts:118