diff --git a/src/bank/teller/teller_integration_test.go b/src/bank/teller/teller_integration_test.go
new file mode 100644
index 0000000..f2a0359
--- /dev/null
+++ b/src/bank/teller/teller_integration_test.go
@@ -0,0 +1,45 @@
+package teller_test
+
+import (
+	"crypto/tls"
+	"io"
+	"net/http"
+	"testing"
+	"time"
+)
+
+func TestIntegration(t *testing.T) {
+	//curl --cert certificate.pem --cert-key private_key.pem   --auth test_token_bfu2cyvq3il6o: https://api.teller.io/accounts
+	cert, err := tls.LoadX509KeyPair("./certificate.pem", "./private_key.pem")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	c := &http.Client{
+		Timeout: time.Second,
+		Transport: &http.Transport{
+			DisableKeepAlives: true,
+			TLSClientConfig:   &tls.Config{Certificates: []tls.Certificate{cert}},
+		},
+	}
+	//curl --cert certificate.pem --cert-key private_key.pem   --auth test_token_bfu2cyvq3il6o: https://api.teller.io/accounts
+
+	req, err := http.NewRequest(http.MethodGet, "https://api.teller.io/accounts", nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	req.SetBasicAuth("test_token_bfu2cyvq3il6o", "")
+
+	resp, err := c.Do(req)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer resp.Body.Close()
+
+	body, _ := io.ReadAll(resp.Body)
+	if code := resp.StatusCode; code >= 300 {
+		t.Fatalf("(%d) %s", code, body)
+	}
+
+	t.Logf("(%d) %s", resp.StatusCode, body)
+}