curl --request POST \
  --url https://sandbox.hyperswitch.io/v2/api-keys \
  --header 'Content-Type: application/json' \
  --header 'api-key: <api-key>' \
  --data '{
  "name": "Sandbox integration key",
  "description": "Key used by our developers to integrate with the sandbox environment",
  "expiration": "never"
}'

{
  "key_id": "5hEEqkgJUyuxgSKGArHA4mWSnX",
  "merchant_id": "y3oqhf46pyzuxjbcn2giaqnb44",
  "name": "Sandbox integration key",
  "description": "Key used by our developers to integrate with the sandbox environment",
  "api_key": "<string>",
  "created": "2022-09-10T10:11:12Z",
  "expiration": "never"
}