> ## Documentation Index
> Fetch the complete documentation index at: https://etherspot.fyi/llms.txt
> Use this file to discover all available pages before exploring further.

# Deposit to Arka

## Deposit

In short the deposit flow is as follows:

1. Create ticket on Discord to get api key and public address to top up to.
2. Send funds to public address provided.
3. Call [the deposit api](/arka/api-calls/deposit-to-paymaster)
4. Call [whitelist api](/arka/api-calls/whitelist-an-address) to whitelist an address.
5. Add api key to estimate function like so:

```javascript theme={null}
const CHAIN_ID = 11155111;
const ARKA_API_KEY = "etherspot_public_key";
const op = await primeSdk.estimate({ url: `https://rpc.etherspot.io/paymaster?apiKey=${ARKA_API_KEY}&chainId=${CHAIN_ID}`,
context: { mode: 'sponsor' } });
```

Now any transactions created like this will be sponsored for this address.