curl --request POST \
  --url https://api.neynar.com/v2/signature/x402/ \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --header 'x-wallet-id: <x-wallet-id>' \
  --data '
{
  "payment_requirements": {
    "accepts": [
      {
        "asset": "0x5a927ac639636e534b678e81768ca19e2c6280b7",
        "description": "<string>",
        "maxAmountRequired": "<string>",
        "maxTimeoutSeconds": 123,
        "payTo": "0x5a927ac639636e534b678e81768ca19e2c6280b7",
        "resource": "<string>",
        "scheme": "exact",
        "extra": {},
        "mimeType": "<string>",
        "outputSchema": {}
      }
    ],
    "x402Version": 1
  }
}
'

import requests

url = "https://api.neynar.com/v2/signature/x402/"

payload = { "payment_requirements": {
        "accepts": [
            {
                "asset": "0x5a927ac639636e534b678e81768ca19e2c6280b7",
                "description": "<string>",
                "maxAmountRequired": "<string>",
                "maxTimeoutSeconds": 123,
                "payTo": "0x5a927ac639636e534b678e81768ca19e2c6280b7",
                "resource": "<string>",
                "scheme": "exact",
                "extra": {},
                "mimeType": "<string>",
                "outputSchema": {}
            }
        ],
        "x402Version": 1
    } }
headers = {
    "x-wallet-id": "<x-wallet-id>",
    "x-api-key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'x-wallet-id': '<x-wallet-id>',
    'x-api-key': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    payment_requirements: {
      accepts: [
        {
          asset: '0x5a927ac639636e534b678e81768ca19e2c6280b7',
          description: '<string>',
          maxAmountRequired: '<string>',
          maxTimeoutSeconds: 123,
          payTo: '0x5a927ac639636e534b678e81768ca19e2c6280b7',
          resource: '<string>',
          scheme: 'exact',
          extra: {},
          mimeType: '<string>',
          outputSchema: {}
        }
      ],
      x402Version: 1
    }
  })
};

fetch('https://api.neynar.com/v2/signature/x402/', 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/signature/x402/",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'payment_requirements' => [
        'accepts' => [
                [
                                'asset' => '0x5a927ac639636e534b678e81768ca19e2c6280b7',
                                'description' => '<string>',
                                'maxAmountRequired' => '<string>',
                                'maxTimeoutSeconds' => 123,
                                'payTo' => '0x5a927ac639636e534b678e81768ca19e2c6280b7',
                                'resource' => '<string>',
                                'scheme' => 'exact',
                                'extra' => [
                                                                
                                ],
                                'mimeType' => '<string>',
                                'outputSchema' => [
                                                                
                                ]
                ]
        ],
        'x402Version' => 1
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-api-key: <api-key>",
    "x-wallet-id: <x-wallet-id>"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://api.neynar.com/v2/signature/x402/"

	payload := strings.NewReader("{\n  \"payment_requirements\": {\n    \"accepts\": [\n      {\n        \"asset\": \"0x5a927ac639636e534b678e81768ca19e2c6280b7\",\n        \"description\": \"<string>\",\n        \"maxAmountRequired\": \"<string>\",\n        \"maxTimeoutSeconds\": 123,\n        \"payTo\": \"0x5a927ac639636e534b678e81768ca19e2c6280b7\",\n        \"resource\": \"<string>\",\n        \"scheme\": \"exact\",\n        \"extra\": {},\n        \"mimeType\": \"<string>\",\n        \"outputSchema\": {}\n      }\n    ],\n    \"x402Version\": 1\n  }\n}")

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

	req.Header.Add("x-wallet-id", "<x-wallet-id>")
	req.Header.Add("x-api-key", "<api-key>")
	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))

}

HttpResponse<String> response = Unirest.post("https://api.neynar.com/v2/signature/x402/")
  .header("x-wallet-id", "<x-wallet-id>")
  .header("x-api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"payment_requirements\": {\n    \"accepts\": [\n      {\n        \"asset\": \"0x5a927ac639636e534b678e81768ca19e2c6280b7\",\n        \"description\": \"<string>\",\n        \"maxAmountRequired\": \"<string>\",\n        \"maxTimeoutSeconds\": 123,\n        \"payTo\": \"0x5a927ac639636e534b678e81768ca19e2c6280b7\",\n        \"resource\": \"<string>\",\n        \"scheme\": \"exact\",\n        \"extra\": {},\n        \"mimeType\": \"<string>\",\n        \"outputSchema\": {}\n      }\n    ],\n    \"x402Version\": 1\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.neynar.com/v2/signature/x402/")

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

request = Net::HTTP::Post.new(url)
request["x-wallet-id"] = '<x-wallet-id>'
request["x-api-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"payment_requirements\": {\n    \"accepts\": [\n      {\n        \"asset\": \"0x5a927ac639636e534b678e81768ca19e2c6280b7\",\n        \"description\": \"<string>\",\n        \"maxAmountRequired\": \"<string>\",\n        \"maxTimeoutSeconds\": 123,\n        \"payTo\": \"0x5a927ac639636e534b678e81768ca19e2c6280b7\",\n        \"resource\": \"<string>\",\n        \"scheme\": \"exact\",\n        \"extra\": {},\n        \"mimeType\": \"<string>\",\n        \"outputSchema\": {}\n      }\n    ],\n    \"x402Version\": 1\n  }\n}"

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

{
  "payload": {
    "authorization": {
      "from": "0x5a927ac639636e534b678e81768ca19e2c6280b7",
      "nonce": "<string>",
      "to": "0x5a927ac639636e534b678e81768ca19e2c6280b7",
      "validAfter": "<string>",
      "validBefore": "<string>",
      "value": "<string>"
    },
    "signature": "<string>"
  },
  "scheme": "exact",
  "x402Version": 1
}

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

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

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

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