curl --request POST \
  --url https://api.0xarchive.io/v1/auth/web3/challenge \
  --header 'Content-Type: application/json' \
  --data '
{
  "address": "0x742d35Cc6634C0532925a3b844Bc9e7595f2bD18"
}
'

import requests

url = "https://api.0xarchive.io/v1/auth/web3/challenge"

payload = { "address": "0x742d35Cc6634C0532925a3b844Bc9e7595f2bD18" }
headers = {"Content-Type": "application/json"}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({address: '0x742d35Cc6634C0532925a3b844Bc9e7595f2bD18'})
};

fetch('https://api.0xarchive.io/v1/auth/web3/challenge', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

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

func main() {

	url := "https://api.0xarchive.io/v1/auth/web3/challenge"

	payload := strings.NewReader("{\n  \"address\": \"0x742d35Cc6634C0532925a3b844Bc9e7595f2bD18\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Content-Type", "application/json")

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

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

	fmt.Println(string(body))

}

{
  "message": "<string>",
  "nonce": "<string>"
}

{
  "code": 400,
  "error": "Failed to deserialize query string: limit: invalid digit found in string",
  "error_code": "invalid_query_params",
  "request_id": "3f2a9c71-5b0e-4d68-9a4c-7e1d2b6f8a05"
}

{
  "code": 429,
  "error": "Rate limit exceeded"
}