diff --git a/internal/client/client.go b/internal/client/client.go
index d87357c..ddf5d9e 100644
--- a/internal/client/client.go
+++ b/internal/client/client.go
@@ -250,6 +250,64 @@ func (e *EdgeConnect) ShowAppInstance(ctx context.Context, appinstkey AppInstanc
 	return response.Data, nil
 }
 
+func (e *EdgeConnect) ShowAppInstances(ctx context.Context, appinstkey AppInstanceKey, region string) ([]AppInstance, error) {
+	token, err := e.RetrieveToken(ctx)
+	if err != nil {
+		return []AppInstance{}, err
+	}
+
+	input := struct {
+		App struct {
+			AppInstKey AppInstanceKey `json:"key"`
+		} `json:"appinst"`
+		Region string `json:"Region"`
+	}{
+		App: struct {
+			AppInstKey AppInstanceKey `json:"key"`
+		}{
+			AppInstKey: appinstkey,
+		},
+		Region: region,
+	}
+
+	json_data, err := json.Marshal(input)
+	if err != nil {
+		return []AppInstance{}, err
+	}
+
+	request, err := http.NewRequestWithContext(ctx, "POST", e.BaseURL+"/api/v1/auth/ctrl/ShowAppInst", bytes.NewBuffer(json_data))
+	if err != nil {
+		return []AppInstance{}, err
+	}
+	request.Header.Set("Content-Type", "application/json")
+	request.Header.Set("Authorization", fmt.Sprintf("Bearer %s", token))
+
+	resp, err := e.HttpClient.Do(request)
+	if err != nil {
+		return []AppInstance{}, err
+	}
+
+	defer resp.Body.Close()
+	type response struct {
+		Data AppInstance `json:"data"`
+	}
+
+	appinstances := []AppInstance{}
+	decoder := json.NewDecoder(resp.Body)
+	for {
+		var d response
+		if err := decoder.Decode(&d); err != nil {
+			if err.Error() == "EOF" {
+				break
+			}
+			log.Fatal(err)
+		}
+		appinstances = append(appinstances, d.Data)
+	}
+
+	return appinstances, nil
+}
+
 func (e *EdgeConnect) RetrieveToken(ctx context.Context) (string, error) {
 	json_data, err := json.Marshal(map[string]string{
 		"username": e.Credentials.Username,
diff --git a/provider/provider.go b/provider/provider.go
index 1b2dfd4..a293318 100644
--- a/provider/provider.go
+++ b/provider/provider.go
@@ -20,6 +20,7 @@ import (
 	"fmt"
 	"net/http"
 	"os"
+	"strings"
 
 	"edp.buildth.ing/DevFW-CICD/garm-provider-edge-connect/config"
 	"edp.buildth.ing/DevFW-CICD/garm-provider-edge-connect/internal/client"
@@ -251,7 +252,46 @@ func (a *edgeConnectProvider) GetInstance(ctx context.Context, instance string)
 // ListInstances will list all instances for a provider.
 func (a *edgeConnectProvider) ListInstances(ctx context.Context, poolID string) ([]params.ProviderInstance, error) {
 
-	return nil, nil
+	apps, err := a.client.ShowAppInstances(ctx, client.AppInstanceKey{
+		Organization: a.cfg.Organization,
+	}, a.cfg.Region)
+	if err != nil {
+		return nil, err
+	}
+
+	myappintances := filter(apps, func(app client.AppInstance) bool { return strings.HasPrefix(app.Key.Name, poolID) })
+
+	providerinstances := []params.ProviderInstance{}
+
+	for _, v := range myappintances {
+		providerInstance := params.ProviderInstance{
+			ProviderID: a.controllerID,
+			Name:       v.Key.Name,
+			OSType:     params.Linux,
+			OSArch:     params.Amd64,
+			OSName:     "lala",
+			OSVersion:  "lalatest",
+			Status:     params.InstanceStatusUnknown,
+		}
+
+		if v.State == "Ready" {
+			providerInstance.Status = params.InstanceRunning
+		}
+
+		providerinstances = append(providerinstances, providerInstance)
+	}
+
+	return providerinstances, nil
+}
+
+func filter[T any](s []T, predicate func(T) bool) []T {
+	result := make([]T, 0, len(s)) // Pre-allocate for efficiency
+	for _, v := range s {
+		if predicate(v) {
+			result = append(result, v)
+		}
+	}
+	return result
 }
 
 // RemoveAllInstances will remove all instances created by this provider.