# Create Agent

To transact from Polkadot to Ethereum, you need to create an agent on Ethereum. An agent is similar to a sovereign account on Polkadot.

### Step 1: Get Agent ID

Use the create-agent helper to derive the `agentId` for your source parachain account:

```typescript
import { createApi } from "@snowbridge/api"
import { EthersEthereumProvider } from "@snowbridge/provider-ethers"
import { polkadot_mainnet } from "@snowbridge/registry"

const {
    chains: { assetHub },
} = polkadot_mainnet

const api = createApi({ info: polkadot_mainnet, ethereumProvider: new EthersEthereumProvider() })
const creator = api.createAgent()

const agentId = await creator.agentIdForAccount(
    assetHub.id,
    "5CXiZE6z6w78EuqGdmJao7PFnmArgoHJbHbjWPftW5otnBKs", // source account on the parachain
)
```

### Step 2: Create Agent

You have the option of creating an agent through the Snowbridge SDK, or by calling the contract directly.

#### SDK

The Snowbridge V2 SDK supports creating an Agent:

```typescript
const agentCreate = await creator.build(
    "0x...", // source Ethereum account submitting the create-agent transaction
    agentId,
)
```

The returned `agentCreate.tx` can then be submitted to the wallet by your application.

The full script is available at <https://github.com/Snowfork/snowbridge/blob/main/web/packages/operations/src/create_agent.ts>

#### Call Contract

You can call the `v2_createAgent` method directly on the Snowbridge gateway contract: <https://etherscan.io/address/0x27ca963c279c93801941e1eb8799c23f407d68e7#writeProxyContract>

Enter the ID from step 1 and click `Write`:

<figure><img src="/files/IQFKY6fRyUy2iJk7fEhq" alt=""><figcaption></figcaption></figure>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.snowbridge.network/developers/snowbridge-v2/typescript-sdk/create-agent.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.