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# Keypairs
## Generate new keypair
This operation creates a new keypair under a provided name; the public key value is automatically generated for you.
```php
$keypair = $service->keypair();
$keypair->create(array(
'name' => 'jamie_keypair_1'
));
echo $keypair->getPublicKey();
```
## Upload existing keypair
This operation creates a new keypair under a provided name using a provided public key value. This public key will probably exist on your local filesystem, and so provide easy access to your server when uploaded.
```php
$keypair = $service->keypair();
$key = <<<EOT
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAAAgQDx8nkQv/zgGgB4rMYmIf+6A4l6Rr+o/6lHBQdW5aYd44bd8JttDCE/F/pNRr0lRE+PiqSPO8nDPHw0010JeMH9gYgnnFlyY3/OcJ02RhIPyyxYpv9FhY+2YiUkpwFOcLImyrxEsYXpD/0d3ac30bNH6Sw9JD9UZHYcpSxsIbECHw== Example public key
EOT;
$keypair->create(array(
'name' => 'jamie_macbook',
'publicKey' => $key
));
```
## List keypairs
To list all existing keypairs:
```php
$keys = $service->listKeypairs();
foreach ($keys as $key) {
// ...
}
```
For more information about iterators, please see [the docs](../Iterators.md).
## Delete keypairs
To delete a specific keypair:
```php
$keypair->delete();
```
## Creating a server with a keypair
In order to spawn an instance with a saved keypair (allowing you to SSH in without passwords), you create your server
using the same operation as usual, with one extra parameter:
```php
use Guzzle\Http\Exception\BadResponseException;
use OpenCloud\Compute\Constants\Network;
$server = $compute->server();
try {
$response = $server->create(array(
'name' => 'New server',
'image' => $ubuntuImage,
'flavor' => $twoGbFlavor,
'networks' => array(
$compute->network(Network::RAX_PUBLIC),
$compute->network(Network::RAX_PRIVATE)
),
'keypair' => 'jamie_macbook'
));
} catch (BadResponseException $e) {
// error...
}
```
So, as you can see, you specify the **name** of an existing keypair that you previously created on the API.
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