diff --git a/changelog/maradini77_patch-2.md b/changelog/maradini77_patch-2.md
new file mode 100644
index 000000000000..8a2c597b7285
--- /dev/null
+++ b/changelog/maradini77_patch-2.md
@@ -0,0 +1,3 @@
+### Fixed
+
+- Prevent validator service from starting with empty Beacon API host lists by filtering and validating endpoints.
diff --git a/validator/client/service.go b/validator/client/service.go
index f4e27254f51d..c3bbf39e28f3 100644
--- a/validator/client/service.go
+++ b/validator/client/service.go
@@ -181,8 +181,7 @@ func (v *ValidatorService) Start() {
 		return
 	}
 
-	u := strings.ReplaceAll(v.conn.GetBeaconApiUrl(), " ", "")
-	hosts := strings.Split(u, ",")
+	hosts := sanitizeBeaconAPIHosts(v.conn.GetBeaconApiUrl())
 	if len(hosts) == 0 {
 		log.WithError(err).Error("No API hosts provided")
 		return
@@ -376,6 +375,19 @@ func ConstructDialOptions(
 	return dialOpts
 }
 
+func sanitizeBeaconAPIHosts(raw string) []string {
+	u := strings.ReplaceAll(raw, " ", "")
+	rawHosts := strings.Split(u, ",")
+	hosts := make([]string, 0, len(rawHosts))
+	for _, host := range rawHosts {
+		if host == "" {
+			continue
+		}
+		hosts = append(hosts, host)
+	}
+	return hosts
+}
+
 func (v *ValidatorService) Graffiti(ctx context.Context, pubKey [fieldparams.BLSPubkeyLength]byte) ([]byte, error) {
 	if v.validator == nil {
 		return nil, errors.New("validator is unavailable")