## 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.

### Fetch nonce

#### cURL

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

#### Python

```
import requests

url = "https://api.neynar.com/v2/farcaster/login/nonce/"

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

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

print(response.text)
```

#### JavaScript (Fetch API)

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

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

#### PHP

```
<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.neynar.com/v2/farcaster/login/nonce/",
  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;
}
```

#### Go

```
package main

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

func main() {

url := "https://api.neynar.com/v2/farcaster/login/nonce/"

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))
}
```

#### Java (Unirest)

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

#### Ruby

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

url = URI("https://api.neynar.com/v2/farcaster/login/nonce/")

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`
- `401`
- `500`

### Payload Examples

Success Response:
```json
{
  "nonce": "neynarbMi9zSDuOC1GFqixR"
}
```

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

### Node.js SDK

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

#### Authorizations

- **x-api-key**  
  Type: string  
  Location: header  
  Default: NEYNAR_API_DOCS  
  Required: Yes  
  Description: API key to authorize requests.

#### Response

- **200**  
  Type: application/json  
  Description: Success  
  - **nonce**: string (required)  
    The nonce value to sign the message
    
    Example:
    ```json
    "neynarbMi9zSDuOC1GFqixR"
    ```