PayPal Developer REST API cURL modify it as follows`curl -v -X POST “https://api-m.sandbox.pqypal.com/v1/oauth2/token&#8221; -u “<CLIENT_ID>:<CLIENT_SECRET>” -H “Content-Type: application/x-www-form-urlencoded” -d “grant_type=client_credentials Sample Response: {“scope”: “https://uri.paypal.com/services/invoicing https://uri.paypal.com/services/disputes/read-buyer https://uri.paypal.com/services/payments/realtimepayment https://uri.paypal.com/services/disputes/update-seller https://uri.paypal.com/services/payment/authcapture openid https://uri.paypal.com/services/disputes/real-seller https://uri.paypay.com/services/payments/refund https://api-m.paypal.com/v1/vault/credit-card https://api-m.paypal.com/v1/payments/.* https://uri.paypal.com/payments/payouts https://api-m.paypal.com/v1/vault/credit-card/.* https://uri.paypal.com/services/subscriptions https://uri.paypal.com/services/applications/webhooks&#8221;,”access_token”:”A21AAFEpH4PsADK7qSS7pSRsgzfENtu-Q1ysgEDVDESseMHBYXVJYE8ovjj68elIDy8nF26AwPhfXTIeWAZHSLIsQkSYz9ifg”,”token_type”:”Bearer”,”app_id”:”APP-80W284485P519543T”,”expires_in”:31668,”nonce”:”2020-04-03T15:35:36ZaYZlGvEkV4yVSz8g6bAKFoGSEzuy3CQcz3ljhibkOHg”}