diff --git a/README.md b/README.md
index 5dff0a5..1b7a836 100644
--- a/README.md
+++ b/README.md
@@ -25,10 +25,10 @@ Currently supports **v2** only, if you want to use **v1**, use **v1.1.4** git ta
  * PATCH /v1/vault/credit-cards/**ID**
  * GET /v1/vault/credit-cards/**ID**
  * GET /v1/vault/credit-cards
- * GET /v2/payments/authorization/**ID**
- * POST /v2/payments/authorization/**ID**/capture
- * POST /v2/payments/authorization/**ID**/void
- * POST /v2/payments/authorization/**ID**/reauthorize
+ * GET /v2/payments/authorizations/**ID**
+ * POST /v2/payments/authorizations/**ID**/capture
+ * POST /v2/payments/authorizations/**ID**/void
+ * POST /v2/payments/authorizations/**ID**/reauthorize
  * GET /v2/payments/sale/**ID**
  * POST /v2/payments/sale/**ID**/refund
  * GET /v2/payments/refund/**ID**
@@ -37,10 +37,12 @@ Currently supports **v2** only, if you want to use **v1**, use **v1.1.4** git ta
  * PATCH /v2/checkout/orders/**ID**
  * POST /v2/checkout/orders/**ID**/authorize
  * POST /v2/checkout/orders/**ID**/capture
+ * GET /v2/payments/billing-plans
  * POST /v2/payments/billing-plans
  * PATCH /v2/payments/billing-plans/***ID***
  * POST /v2/payments/billing-agreements
  * POST /v2/payments/billing-agreements/***TOKEN***/agreement-execute
+ * POST /v1/notifications/verify-webhook-signature
 
 ### Missing endpoints
 It is possible that some endpoints are missing in this SDK Client, but you can use built-in **paypal** functions to perform a request: **NewClient -> NewRequest -> SendWithAuth**
diff --git a/authorization.go b/authorization.go
index 8438fd6..2f9b353 100644
--- a/authorization.go
+++ b/authorization.go
@@ -7,7 +7,7 @@ import (
 )
 
 // GetAuthorization returns an authorization by ID
-// Endpoint: GET /v2/payments/authorization/ID
+// Endpoint: GET /v2/payments/authorizations/ID
 func (c *Client) GetAuthorization(authID string) (*Authorization, error) {
 	buf := bytes.NewBuffer([]byte(""))
 	req, err := http.NewRequest("GET", fmt.Sprintf("%s%s%s", c.APIBase, "/v2/payments/authorizations/", authID), buf)
@@ -37,7 +37,7 @@ func (c *Client) CaptureAuthorization(authID string, paymentCaptureRequest *Paym
 }
 
 // VoidAuthorization voids a previously authorized payment
-// Endpoint: POST /v2/payments/authorization/ID/void
+// Endpoint: POST /v2/payments/authorizations/ID/void
 func (c *Client) VoidAuthorization(authID string) (*Authorization, error) {
 	buf := bytes.NewBuffer([]byte(""))
 	req, err := http.NewRequest("POST", fmt.Sprintf("%s%s", c.APIBase, "/v2/payments/authorizations/"+authID+"/void"), buf)
@@ -53,7 +53,7 @@ func (c *Client) VoidAuthorization(authID string) (*Authorization, error) {
 
 // ReauthorizeAuthorization reauthorize a Paypal account payment.
 // PayPal recommends to reauthorize payment after ~3 days
-// Endpoint: POST /v2/payments/authorization/ID/reauthorize
+// Endpoint: POST /v2/payments/authorizations/ID/reauthorize
 func (c *Client) ReauthorizeAuthorization(authID string, a *Amount) (*Authorization, error) {
 	buf := bytes.NewBuffer([]byte(`{"amount":{"currency":"` + a.Currency + `","total":"` + a.Total + `"}}`))
 	req, err := http.NewRequest("POST", fmt.Sprintf("%s%s", c.APIBase, "/v2/payments/authorizations/"+authID+"/reauthorize"), buf)