diff --git a/acceptance/00-authentication.go b/acceptance/00-authentication.go
new file mode 100644
index 0000000..10ed022
--- /dev/null
+++ b/acceptance/00-authentication.go
@@ -0,0 +1,28 @@
+package main
+
+import (
+  "github.com/rackspace/gophercloud"
+  "strings"
+  "fmt"
+  "os"
+)
+
+func main() {
+  provider, username, _, apiKey := getCredentials()
+
+  if !strings.Contains(provider, "rackspace") {
+    fmt.Fprintf(os.Stdout, "Skipping test because provider doesn't support API_KEYs\n")
+    return
+  }
+
+  _, err := gophercloud.Authenticate(
+    provider,
+    gophercloud.AuthOptions{
+      Username: username,
+      ApiKey: apiKey,
+    },
+  )
+  if err != nil {
+    panic(err)
+  }
+}
diff --git a/acceptance/01-authentication.go b/acceptance/01-authentication.go
index 91fc814..bcd3545 100644
--- a/acceptance/01-authentication.go
+++ b/acceptance/01-authentication.go
@@ -5,7 +5,7 @@
 )
 
 func main() {
-	provider, username, password := getCredentials()
+	provider, username, password, _ := getCredentials()
 
 	_, err := gophercloud.Authenticate(
 		provider,
diff --git a/acceptance/libargs.go b/acceptance/libargs.go
index 23c55f1..bc34d86 100644
--- a/acceptance/libargs.go
+++ b/acceptance/libargs.go
@@ -11,10 +11,11 @@
 // getCredentials will verify existence of needed credential information
 // provided through environment variables.  This function will not return
 // if at least one piece of required information is missing.
-func getCredentials() (provider, username, password string) {
+func getCredentials() (provider, username, password, apiKey string) {
 	provider = os.Getenv("SDK_PROVIDER")
 	username = os.Getenv("SDK_USERNAME")
 	password = os.Getenv("SDK_PASSWORD")
+	apiKey   = os.Getenv("SDK_API_KEY")
 
 	if (provider == "") || (username == "") || (password == "") {
 		fmt.Fprintf(os.Stderr, "One or more of the following environment variables aren't set:\n")
@@ -139,7 +140,7 @@
 // withIdentity authenticates the user against the provider's identity service, and provides an
 // accessor for additional services.
 func withIdentity(ar bool, f func(gophercloud.AccessProvider)) {
-	provider, username, password := getCredentials()
+	provider, username, password, _ := getCredentials()
 	acc, err := gophercloud.Authenticate(
 		provider,
 		gophercloud.AuthOptions{