diff --git a/pkg/internal/http/api/index.go b/pkg/internal/http/api/index.go
index 55fdbeb..586a997 100644
--- a/pkg/internal/http/api/index.go
+++ b/pkg/internal/http/api/index.go
@@ -139,6 +139,7 @@ func MapAPIs(app *fiber.App, baseURL string) {
 		developers := api.Group("/dev").Name("Developers API")
 		{
 			developers.Post("/notify", notifyUser)
+			developers.Post("/notify/all", notifyAllUser)
 
 			bots := developers.Group("/bots").Name("Bots")
 			{
diff --git a/pkg/internal/http/api/notify_api.go b/pkg/internal/http/api/notify_api.go
index 6462180..6d2c912 100644
--- a/pkg/internal/http/api/notify_api.go
+++ b/pkg/internal/http/api/notify_api.go
@@ -4,6 +4,7 @@ import (
 	"fmt"
 
 	"git.solsynth.dev/hypernet/passport/pkg/authkit/models"
+	"git.solsynth.dev/hypernet/passport/pkg/internal/database"
 	"git.solsynth.dev/hypernet/passport/pkg/internal/http/exts"
 	"git.solsynth.dev/hypernet/passport/pkg/internal/services"
 	"github.com/gofiber/fiber/v2"
@@ -65,3 +66,59 @@ func notifyUser(c *fiber.Ctx) error {
 
 	return c.SendStatus(fiber.StatusOK)
 }
+
+func notifyAllUser(c *fiber.Ctx) error {
+	if err := exts.EnsureGrantedPerm(c, "DevNotifyAllUser", true); err != nil {
+		return err
+	}
+	user := c.Locals("user").(models.Account)
+
+	var data struct {
+		ClientID   string         `json:"client_id" validate:"required"`
+		Topic      string         `json:"type" validate:"required"`
+		Title      string         `json:"subject" validate:"required,max=1024"`
+		Subtitle   string         `json:"subtitle" validate:"max=1024"`
+		Body       string         `json:"content" validate:"required,max=4096"`
+		Metadata   map[string]any `json:"metadata"`
+		Priority   int            `json:"priority"`
+		IsRealtime bool           `json:"is_realtime"`
+	}
+
+	if err := exts.BindAndValidate(c, &data); err != nil {
+		return err
+	}
+
+	client, err := services.GetThirdClientWithUser(data.ClientID, user.ID)
+	if err != nil {
+		return fiber.NewError(fiber.StatusBadRequest, fmt.Sprintf("unable to get client: %v", err))
+	}
+
+	var accounts []models.Account
+	if err := database.C.Find(&accounts).Error; err != nil {
+		return fiber.NewError(fiber.StatusBadRequest, err.Error())
+	}
+
+	var notifications []models.Notification
+	for _, account := range accounts {
+		notification := models.Notification{
+			Topic:     data.Topic,
+			Subtitle:  data.Subtitle,
+			Title:     data.Title,
+			Body:      data.Body,
+			Metadata:  data.Metadata,
+			Priority:  data.Priority,
+			Account:   account,
+			AccountID: account.ID,
+			SenderID:  &client.ID,
+		}
+		notifications = append(notifications, notification)
+	}
+
+	if data.IsRealtime {
+		go services.PushNotificationBatch(notifications)
+	} else {
+		go services.NewNotificationBatch(notifications)
+	}
+
+	return c.SendStatus(fiber.StatusOK)
+}