diff --git a/cmd/bosun/search/search.go b/cmd/bosun/search/search.go
index 21faa3dcbd..8406afc8cb 100644
--- a/cmd/bosun/search/search.go
+++ b/cmd/bosun/search/search.go
@@ -284,6 +284,21 @@ func (s *Search) TagKeysByMetric(Metric string) []string {
 	return r
 }
 
+func (s *Search) MetricsWithTagKeys() map[string][]string {
+	metricToKeys := make(map[string][]string)
+	searchResult := s.Read.Tagk.Copy()
+	for metric, v := range searchResult {
+		keys := make([]string, len(v))
+		i := 0
+		for tK := range v {
+			keys[i] = tK
+			i++
+		}
+		metricToKeys[metric] = keys
+	}
+	return metricToKeys
+}
+
 func (s *Search) tagValuesByMetricTagKey(Metric, Tagk string, since time.Duration) []string {
 	var t int64
 	if since > 0 {
diff --git a/cmd/bosun/web/search.go b/cmd/bosun/web/search.go
index be1be4543d..8df7cb494d 100644
--- a/cmd/bosun/web/search.go
+++ b/cmd/bosun/web/search.go
@@ -56,6 +56,11 @@ func MetricsByTagPair(t miniprofiler.Timer, w http.ResponseWriter, r *http.Reque
 	return values, nil
 }
 
+func MetricsWithTagKeys(t miniprofiler.Timer, w http.ResponseWriter, r *http.Request) (interface{}, error) {
+	values := schedule.Search.MetricsWithTagKeys()
+	return values, nil
+}
+
 func TagValuesByTagKey(t miniprofiler.Timer, w http.ResponseWriter, r *http.Request) (interface{}, error) {
 	vars := mux.Vars(r)
 	tagk := vars["tagk"]
diff --git a/cmd/bosun/web/web.go b/cmd/bosun/web/web.go
index 949cf678ec..e9ec7984ed 100644
--- a/cmd/bosun/web/web.go
+++ b/cmd/bosun/web/web.go
@@ -99,6 +99,7 @@ func Listen(listenAddr string, devMode bool, tsdbHost string) error {
 	router.Handle("/api/metadata/put", JSON(PutMetadata))
 	router.Handle("/api/metric", JSON(UniqueMetrics))
 	router.Handle("/api/metric/{tagk}/{tagv}", JSON(MetricsByTagPair))
+	router.Handle("/api/metric/tagkey", JSON(MetricsWithTagKeys))
 	router.Handle("/api/rule", JSON(Rule))
 	router.HandleFunc("/api/shorten", Shorten)
 	router.Handle("/api/silence/clear", JSON(SilenceClear))
diff --git a/docs/api.md b/docs/api.md
index ccf8bb55e7..d1d79ee85b 100644
--- a/docs/api.md
+++ b/docs/api.md
@@ -87,6 +87,10 @@ Returns dashboard-ready data for all hosts.
 
 Returns the metrics that have been relayed through bosun.
 
+### /api/metric/tagkey
+
+Returns the metrics that have been relayed through bosun and their associated tag keys.
+
 ### /api/metric/{tagk}/{tagv}
 
 Returns the metrics that are available for the specified tagk/tagv pair. For