## Documentation Index

Fetch the complete documentation index at: [/llms.txt](https://docs.neynar.com/llms.txt)

Use this file to discover all available pages before exploring further.

By custody-address

### cURL

```
curl --request GET \
  --url https://api.neynar.com/v2/farcaster/user/custody-address/ \
  --header 'x-api-key: NEYNAR_API_DOCS'
```

```
import requests

url = "https://api.neynar.com/v2/farcaster/user/custody-address/"

headers = {"x-api-key": "NEYNAR_API_DOCS"}

response = requests.get(url, headers=headers)

print(response.text)
```

```
const options = {method: 'GET', headers: {'x-api-key': 'NEYNAR_API_DOCS'}};

fetch('https://api.neynar.com/v2/farcaster/user/custody-address/', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));
```

```
<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.neynar.com/v2/farcaster/user/custody-address/",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "x-api-key: NEYNAR_API_DOCS"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}
```

```
package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

url := "https://api.neynar.com/v2/farcaster/user/custody-address/"

req, _ := http.NewRequest("GET", url, nil)

req.Header.Add("x-api-key", "NEYNAR_API_DOCS")

res, _ := http.DefaultClient.Do(req)

defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

fmt.Println(string(body))

}
```

```
HttpResponse<String> response = Unirest.get("https://api.neynar.com/v2/farcaster/user/custody-address/")
  .header("x-api-key", "NEYNAR_API_DOCS")
  .asString();
```

```
require 'uri'
require 'net/http'

url = URI("https://api.neynar.com/v2/farcaster/user/custody-address/")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["x-api-key"] = 'NEYNAR_API_DOCS'

response = http.request(request)
puts response.read_body
```

**Response Codes**

- **200**: Successful request  
- **400**: Bad request  
- **404**: Not found

### JSON Response Structure
```
{
  "user": {
    "auth_addresses": [
      {
        "address": "0x5a927ac639636e534b678e81768ca19e2c6280b7",
        "app": {
          "fid": 3,
          "object": "user_dehydrated",
          "custody_address": "0x5a927ac639636e534b678e81768ca19e2c6280b7",
          "display_name": "<string>",
          "pfp_url": "<string>",
          "score": 123,
          "username": "<string>"
        }
      }
    ],
    "custody_address": "0x5a927ac639636e534b678e81768ca19e2c6280b7",
    "fid": 3,
    "follower_count": 123,
    "following_count": 123,
    "object": "user",
    "profile": {
      "bio": {
        "text": "<string>",
        "mentioned_channels": [
          {
            "id": "<string>",
            "name": "<string>",
            "object": "channel_dehydrated",
            "image_url": "<string>",
            "viewer_context": {
              "following": true
            }
          }
        ],
        "mentioned_channels_ranges": [
          {
            "end": 1,
            "start": 1
          }
        ],
        "mentioned_profiles": [
          {
            "fid": 3,
            "object": "user_dehydrated",
            "custody_address": "0x5a927ac639636e534b678e81768ca19e2c6280b7",
            "display_name": "<string>",
            "pfp_url": "<string>",
            "score": 123,
            "username": "<string>"
          }
        ],
        "mentioned_profiles_ranges": [
          {
            "end": 1,
            "start": 1
          }
        ]
      },
      "banner": {
        "url": "<string>"
      },
      "live_at": {
        "is_live": true,
        "updated_at": "2023-11-07T05:31:56Z",
        "url": "<string>"
      },
      "location": {
        "latitude": 0,
        "longitude": 0,
        "address": {
          "city": "<string>",
          "country": "<string>",
          "country_code": "<string>",
          "state": "<string>",
          "state_code": "<string>"
        },
        "radius": 1
      }
    },
    "registered_at": "2023-11-07T05:31:56Z",
    "username": "<string>",
    "verifications": [
      "0x5a927ac639636e534b678e81768ca19e2c6280b7"
    ],
    "verified_accounts": [
      {
        "username": "<string>"
      }
    ],
    "verified_addresses": {
      "eth_addresses": [
        "0x5a927ac639636e534b678e81768ca19e2c6280b7"
      ],
      "primary": {
        "eth_address": "0x5a927ac639636e534b678e81768ca19e2c6280b7",
        "sol_address": "<string>"
      },
      "sol_addresses": [
        "<string>"
      ]
    },
    "display_name": "<string>",
    "experimental": {
      "neynar_user_score": 123,
      "deprecation_notice": "<string>"
    },
    "pfp_url": "<string>",
    "pro": {
      "expires_at": "2023-11-07T05:31:56Z",
      "subscribed_at": "2023-11-07T05:31:56Z"
    },
    "score": 123,
    "viewer_context": {
      "blocked_by": true,
      "blocking": true,
      "followed_by": true,
      "following": true
    }
  }
}
```

```json
{
  "message": "<string>",
  "code": "<string>",
  "property": "<string>",
  "status": 123
}
```

```json
{
  "message": "<string>",
  "code": "<string>",
  "property": "<string>",
  "status": 123
}
```

### API Method

- **Method**: GET
- **Endpoint**: /v2/farcaster/user/custody-address/

### Node.js SDK

🔗 **SDK Method:** [lookupUserByCustodyAddress](https://docs.neynar.com/nodejs-sdk/user-apis/lookupUserByCustodyAddress)  
Use this API endpoint with the Neynar Node.js SDK for typed responses and better developer experience.

### Authorizations

- **x-api-key**  
Type: string  
Header  
Default: NEYNAR_API_DOCS  
Required.  
API key to authorize requests

### Query Parameters

- **custody_address**  
Type: string  
Required.  
Custody Address associated with mnemonic  
Example:  
`"0xd1b702203b1b3b641a699997746bd4a12d157909"`

### Response

- **Success (200)**: application/json  
Response body contains user information related to the custody address.