diff --git a/integrations/api_gpg_keys_test.go b/integrations/api_gpg_keys_test.go
index edae22205e7..e664c3c2565 100644
--- a/integrations/api_gpg_keys_test.go
+++ b/integrations/api_gpg_keys_test.go
@@ -32,7 +32,7 @@ func TestGPGKeys(t *testing.T) {
 			results: []int{http.StatusUnauthorized, http.StatusUnauthorized, http.StatusUnauthorized, http.StatusUnauthorized, http.StatusUnauthorized, http.StatusUnauthorized, http.StatusUnauthorized, http.StatusUnauthorized},
 		},
 		{name: "LoggedAsUser2", makeRequest: session.MakeRequest, token: token,
-			results: []int{http.StatusOK, http.StatusOK, http.StatusNotFound, http.StatusNoContent, http.StatusInternalServerError, http.StatusInternalServerError, http.StatusCreated, http.StatusCreated}},
+			results: []int{http.StatusOK, http.StatusOK, http.StatusNotFound, http.StatusNoContent, http.StatusUnprocessableEntity, http.StatusNotFound, http.StatusCreated, http.StatusCreated}},
 	}
 
 	for _, tc := range tt {
diff --git a/models/gpg_key.go b/models/gpg_key.go
index a32312a12dd..bebd33191aa 100644
--- a/models/gpg_key.go
+++ b/models/gpg_key.go
@@ -273,7 +273,7 @@ func parseGPGKey(ownerID int64, e *openpgp.Entity) (*GPGKey, error) {
 	for i, k := range e.Subkeys {
 		subs, err := parseSubGPGKey(ownerID, pubkey.KeyIdString(), k.PublicKey, expiry)
 		if err != nil {
-			return nil, err
+			return nil, ErrGPGKeyParsing{ParseError: err}
 		}
 		subkeys[i] = subs
 	}
diff --git a/routers/api/v1/user/gpg_key.go b/routers/api/v1/user/gpg_key.go
index a4f6d0e9244..d5fed96df17 100644
--- a/routers/api/v1/user/gpg_key.go
+++ b/routers/api/v1/user/gpg_key.go
@@ -144,6 +144,8 @@ func CreateGPGKey(ctx *context.APIContext, form api.CreateGPGKeyOption) {
 	// responses:
 	//   "201":
 	//     "$ref": "#/responses/GPGKey"
+	//   "404":
+	//     "$ref": "#/responses/notFound"
 	//   "422":
 	//     "$ref": "#/responses/validationError"
 
@@ -169,6 +171,8 @@ func DeleteGPGKey(ctx *context.APIContext) {
 	//     "$ref": "#/responses/empty"
 	//   "403":
 	//     "$ref": "#/responses/forbidden"
+	//   "404":
+	//     "$ref": "#/responses/notFound"
 
 	if err := models.DeleteGPGKey(ctx.User, ctx.ParamsInt64(":id")); err != nil {
 		if models.IsErrGPGKeyAccessDenied(err) {
@@ -186,9 +190,13 @@ func DeleteGPGKey(ctx *context.APIContext) {
 func HandleAddGPGKeyError(ctx *context.APIContext, err error) {
 	switch {
 	case models.IsErrGPGKeyAccessDenied(err):
-		ctx.Error(http.StatusUnprocessableEntity, "", "You do not have access to this GPG key")
+		ctx.Error(http.StatusUnprocessableEntity, "GPGKeyAccessDenied", "You do not have access to this GPG key")
 	case models.IsErrGPGKeyIDAlreadyUsed(err):
-		ctx.Error(http.StatusUnprocessableEntity, "", "A key with the same id already exists")
+		ctx.Error(http.StatusUnprocessableEntity, "GPGKeyIDAlreadyUsed", "A key with the same id already exists")
+	case models.IsErrGPGKeyParsing(err):
+		ctx.Error(http.StatusUnprocessableEntity, "GPGKeyParsing", err)
+	case models.IsErrGPGNoEmailFound(err):
+		ctx.Error(http.StatusNotFound, "GPGNoEmailFound", err)
 	default:
 		ctx.Error(http.StatusInternalServerError, "AddGPGKey", err)
 	}
diff --git a/templates/swagger/v1_json.tmpl b/templates/swagger/v1_json.tmpl
index b7fa714a646..0cbe33bd247 100644
--- a/templates/swagger/v1_json.tmpl
+++ b/templates/swagger/v1_json.tmpl
@@ -9105,6 +9105,9 @@
           "201": {
             "$ref": "#/responses/GPGKey"
           },
+          "404": {
+            "$ref": "#/responses/notFound"
+          },
           "422": {
             "$ref": "#/responses/validationError"
           }
@@ -9165,6 +9168,9 @@
           },
           "403": {
             "$ref": "#/responses/forbidden"
+          },
+          "404": {
+            "$ref": "#/responses/notFound"
           }
         }
       }