diff --git a/service_catalog.go b/service_catalog.go
new file mode 100644
index 0000000..326f653
--- /dev/null
+++ b/service_catalog.go
@@ -0,0 +1,61 @@
+package gophercloud
+
+import (
+	"strings"
+)
+
+// ApiCriteria provides one or more criteria for the SDK to look for appropriate endpoints.
+// Fields left unspecified or otherwise set to their zero-values are assumed to not be
+// relevant, and do not participate in the endpoint search.
+type ApiCriteria struct {
+	// Name specifies the desired service catalog entry name.
+	Name string
+
+	// Region specifies the desired endpoint region.
+	Region string
+
+	// VersionId specifies the desired version of the endpoint.
+	// Note that this field is matched exactly, and is (at present)
+	// opaque to Gophercloud.  Thus, requesting a version 2
+	// endpoint will _not_ match a version 3 endpoint.
+	VersionId string
+
+	// The UrlChoice field inidicates whether or not gophercloud
+	// should use the public or internal endpoint URL if a
+	// candidate endpoint is found.
+	UrlChoice int
+}
+
+// The choices available for UrlChoice.  See the ApiCriteria structure for details.
+const (
+	PublicURL = iota
+	InternalURL
+)
+
+// Given a set of criteria to match on, locate the first candidate endpoint
+// in the provided service catalog.
+//
+// If nothing found, the result will be a zero-valued EntryEndpoint (all URLs
+// set to "").
+func FindFirstEndpointByCriteria(entries []CatalogEntry, ac ApiCriteria) EntryEndpoint {
+	rgn := strings.ToUpper(ac.Region)
+
+	for _, entry := range entries {
+		if (ac.Name != "") && (ac.Name != entry.Name) {
+			continue
+		}
+
+		for _, endpoint := range entry.Endpoints {
+			if (ac.Region != "") && (rgn != strings.ToUpper(endpoint.Region)) {
+				continue
+			}
+
+			if (ac.VersionId != "") && (ac.VersionId != endpoint.VersionId) {
+				continue
+			}
+
+			return endpoint
+		}
+	}
+	return EntryEndpoint{}
+}