curl --request POST \
  --url https://api.gcore.com/cloud/v2/keypairs \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "project_id": 1,
  "sshkey_name": "alice",
  "public_key": "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDFHrnwGVBZs6q6vmTBzQFfzdRLQW8N6Rd0ogGe3h8tm83ZJLTTsF+1H4JcOvwI5ETkHMaFIWd2U15nHU5M7plE6UPRKfzy4rq6yI6cE4tojd3A9attMpbEEX7EbGKrbrb4AsjzxHKAVaREAb31ZplJkUlsiees25hTQXBcWQnOESlc9RCxZ/QQgNUUgqm7QGg7CNkL8Mpq9V4YaOhcFGWj0jXP1CL3g6Xe3xJo1CmUbkIOGUyAmrSfLEiy2O91iOUhbmYQyXksznNrT9O6uLkijf6syLZOdyAuUd/Z86eYXej4/YsvIA5eIFU4B6y9zOXEO2A81txPYMRAytYt7+e7 alice@alice",
  "shared_in_project": true
}
'

import requests

url = "https://api.gcore.com/cloud/v2/keypairs"

payload = {
    "project_id": 1,
    "sshkey_name": "alice",
    "public_key": "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDFHrnwGVBZs6q6vmTBzQFfzdRLQW8N6Rd0ogGe3h8tm83ZJLTTsF+1H4JcOvwI5ETkHMaFIWd2U15nHU5M7plE6UPRKfzy4rq6yI6cE4tojd3A9attMpbEEX7EbGKrbrb4AsjzxHKAVaREAb31ZplJkUlsiees25hTQXBcWQnOESlc9RCxZ/QQgNUUgqm7QGg7CNkL8Mpq9V4YaOhcFGWj0jXP1CL3g6Xe3xJo1CmUbkIOGUyAmrSfLEiy2O91iOUhbmYQyXksznNrT9O6uLkijf6syLZOdyAuUd/Z86eYXej4/YsvIA5eIFU4B6y9zOXEO2A81txPYMRAytYt7+e7 alice@alice",
    "shared_in_project": True
}
headers = {
    "Authorization": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    project_id: 1,
    sshkey_name: 'alice',
    public_key: 'ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDFHrnwGVBZs6q6vmTBzQFfzdRLQW8N6Rd0ogGe3h8tm83ZJLTTsF+1H4JcOvwI5ETkHMaFIWd2U15nHU5M7plE6UPRKfzy4rq6yI6cE4tojd3A9attMpbEEX7EbGKrbrb4AsjzxHKAVaREAb31ZplJkUlsiees25hTQXBcWQnOESlc9RCxZ/QQgNUUgqm7QGg7CNkL8Mpq9V4YaOhcFGWj0jXP1CL3g6Xe3xJo1CmUbkIOGUyAmrSfLEiy2O91iOUhbmYQyXksznNrT9O6uLkijf6syLZOdyAuUd/Z86eYXej4/YsvIA5eIFU4B6y9zOXEO2A81txPYMRAytYt7+e7 alice@alice',
    shared_in_project: true
  })
};

fetch('https://api.gcore.com/cloud/v2/keypairs', 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.gcore.com/cloud/v2/keypairs",
  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([
    'project_id' => 1,
    'sshkey_name' => 'alice',
    'public_key' => 'ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDFHrnwGVBZs6q6vmTBzQFfzdRLQW8N6Rd0ogGe3h8tm83ZJLTTsF+1H4JcOvwI5ETkHMaFIWd2U15nHU5M7plE6UPRKfzy4rq6yI6cE4tojd3A9attMpbEEX7EbGKrbrb4AsjzxHKAVaREAb31ZplJkUlsiees25hTQXBcWQnOESlc9RCxZ/QQgNUUgqm7QGg7CNkL8Mpq9V4YaOhcFGWj0jXP1CL3g6Xe3xJo1CmUbkIOGUyAmrSfLEiy2O91iOUhbmYQyXksznNrT9O6uLkijf6syLZOdyAuUd/Z86eYXej4/YsvIA5eIFU4B6y9zOXEO2A81txPYMRAytYt7+e7 alice@alice',
    'shared_in_project' => true
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: <api-key>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($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.gcore.com/cloud/v2/keypairs"

	payload := strings.NewReader("{\n  \"project_id\": 1,\n  \"sshkey_name\": \"alice\",\n  \"public_key\": \"ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDFHrnwGVBZs6q6vmTBzQFfzdRLQW8N6Rd0ogGe3h8tm83ZJLTTsF+1H4JcOvwI5ETkHMaFIWd2U15nHU5M7plE6UPRKfzy4rq6yI6cE4tojd3A9attMpbEEX7EbGKrbrb4AsjzxHKAVaREAb31ZplJkUlsiees25hTQXBcWQnOESlc9RCxZ/QQgNUUgqm7QGg7CNkL8Mpq9V4YaOhcFGWj0jXP1CL3g6Xe3xJo1CmUbkIOGUyAmrSfLEiy2O91iOUhbmYQyXksznNrT9O6uLkijf6syLZOdyAuUd/Z86eYXej4/YsvIA5eIFU4B6y9zOXEO2A81txPYMRAytYt7+e7 alice@alice\",\n  \"shared_in_project\": true\n}")

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

	req.Header.Add("Authorization", "<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.gcore.com/cloud/v2/keypairs")
  .header("Authorization", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"project_id\": 1,\n  \"sshkey_name\": \"alice\",\n  \"public_key\": \"ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDFHrnwGVBZs6q6vmTBzQFfzdRLQW8N6Rd0ogGe3h8tm83ZJLTTsF+1H4JcOvwI5ETkHMaFIWd2U15nHU5M7plE6UPRKfzy4rq6yI6cE4tojd3A9attMpbEEX7EbGKrbrb4AsjzxHKAVaREAb31ZplJkUlsiees25hTQXBcWQnOESlc9RCxZ/QQgNUUgqm7QGg7CNkL8Mpq9V4YaOhcFGWj0jXP1CL3g6Xe3xJo1CmUbkIOGUyAmrSfLEiy2O91iOUhbmYQyXksznNrT9O6uLkijf6syLZOdyAuUd/Z86eYXej4/YsvIA5eIFU4B6y9zOXEO2A81txPYMRAytYt7+e7 alice@alice\",\n  \"shared_in_project\": true\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.gcore.com/cloud/v2/keypairs")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"project_id\": 1,\n  \"sshkey_name\": \"alice\",\n  \"public_key\": \"ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDFHrnwGVBZs6q6vmTBzQFfzdRLQW8N6Rd0ogGe3h8tm83ZJLTTsF+1H4JcOvwI5ETkHMaFIWd2U15nHU5M7plE6UPRKfzy4rq6yI6cE4tojd3A9attMpbEEX7EbGKrbrb4AsjzxHKAVaREAb31ZplJkUlsiees25hTQXBcWQnOESlc9RCxZ/QQgNUUgqm7QGg7CNkL8Mpq9V4YaOhcFGWj0jXP1CL3g6Xe3xJo1CmUbkIOGUyAmrSfLEiy2O91iOUhbmYQyXksznNrT9O6uLkijf6syLZOdyAuUd/Z86eYXej4/YsvIA5eIFU4B6y9zOXEO2A81txPYMRAytYt7+e7 alice@alice\",\n  \"shared_in_project\": true\n}"

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

{
  "public_key": "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDFHrnwGVBZs6q6vmTBzQFfzdRLQW8N6Rd0ogGe3h8tm83ZJLTTsF+1H4JcOvwI5ETkHMaFIWd2U15nHU5M7plE6UPRKfzy4rq6yI6cE4tojd3A9attMpbEEX7EbGKrbrb4AsjzxHKAVaREAb31ZplJkUlsiees25hTQXBcWQnOESlc9RCxZ/QQgNUUgqm7QGg7CNkL8Mpq9V4YaOhcFGWj0jXP1CL3g6Xe3xJo1CmUbkIOGUyAmrSfLEiy2O91iOUhbmYQyXksznNrT9O6uLkijf6syLZOdyAuUd/Z86eYXej4/YsvIA5eIFU4B6y9zOXEO2A81txPYMRAytYt7+e7 alice@alice",
  "shared_in_project": true,
  "sshkey_id": "36a7a97a-0672-4911-8f2b-92cd4e5b0d91",
  "sshkey_name": "alice",
  "state": "ACTIVE",
  "created_at": "2022-06-16T17:05:50",
  "fingerprint": "86:75:ce:e7:e9:1e:f0:79:ec:6f:d8:92:9b:43:fc:4d",
  "private_key": "<private_key>",
  "project_id": 1
}