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

# User by Wallet Address

> Find Farcaster user profile based on ethereum address

<Info>
  ### This guide refers to [this API](/reference/fetch-bulk-users-by-eth-or-sol-address)
</Info>

Farcaster users can connect their FID (Farcaster ID) with an Ethereum or Solana address. This guide demonstrates how to get information about a user given their address.

Check out this [Getting started guide](/docs/getting-started-with-neynar) to learn how to set up your environment and get an API key.

First, initialize the client:

<CodeGroup>
  ```javascript Javascript theme={"system"}
  // npm i @neynar/nodejs-sdk
  import { NeynarAPIClient, Configuration } from "@neynar/nodejs-sdk";

  // make sure to set your NEYNAR_API_KEY .env
  // don't have an API key yet? get one at neynar.com
  const config = new Configuration({
    apiKey: process.env.NEYNAR_API_KEY,
  });

  const client = new NeynarAPIClient(config);
  ```
</CodeGroup>

To get vitalik.eth's Farcaster profile:

<CodeGroup>
  ```javascript Javascript theme={"system"}
  // vitalik.eth
  const addr = "0xd8da6bf26964af9d7eed9e03e53415d37aa96045";
  const user = await client.fetchBulkUsersByEthOrSolAddress({addresses: [addr]});

  console.log(user);
  ```
</CodeGroup>

Example output:

```json theme={"system"}
{
  result: {
    user: {
      fid: 5650,
      custodyAddress: "0xadd746be46ff36f10c81d6e3ba282537f4c68077",
      username: "vitalik.eth",
      displayName: "Vitalik Buterin",
      pfp: [Object ...],
      profile: [Object ...],
      followerCount: 14769,
      followingCount: 70,
      verifications: [ "0xd8da6bf26964af9d7eed9e03e53415d37aa96045" ],
      activeStatus: "active"
    }
  }
}
```

For addresses with multiple verifications, it will all resolve to the same user:

<CodeGroup>
  ```javascript Javascript theme={"system"}
  // dwr.eth
  const addr1 = "0xd7029bdea1c17493893aafe29aad69ef892b8ff2";
  const addr2 = "0xa14b4c95b5247199d74c5578531b4887ca5e4909";

  // use Promise.all to make multiple requests in parallel
  const users = await Promise.all([
    client.fetchBulkUsersByEthOrSolAddress({addresses: [addr1]}),
    client.fetchBulkUsersByEthOrSolAddress({addresses: [addr2]}),
  ]);

  console.log(users[0] === users[1]); // true
  console.log(users[0]);
  ```
</CodeGroup>

They both resolve to:

```json theme={"system"}
{
  result: {
    user: {
      fid: 3,
      custodyAddress: "0x6b0bda3f2ffed5efc83fa8c024acff1dd45793f1",
      username: "dwr.eth",
      displayName: "Dan Romero",
      pfp: [Object ...],
      profile: [Object ...],
      followerCount: 19326,
      followingCount: 2702,
      verifications: [ "0xd7029bdea1c17493893aafe29aad69ef892b8ff2", "0xa14b4c95b5247199d74c5578531b4887ca5e4909",
        "0xb877f7bb52d28f06e60f557c00a56225124b357f", "0x8fc5d6afe572fefc4ec153587b63ce543f6fa2ea"
      ],
      activeStatus: "active"
    }
  }
}
```

<Info>
  ### Ready to start building?

  Get your subscription at [neynar.com](https://neynar.com) and reach out to us on [Slack](https://neynar.com/slack) with any questions!
</Info>