diff --git a/src/clj/daisyproducer2/words/confirm.clj b/src/clj/daisyproducer2/words/confirm.clj
index ad332e9..736b539 100644
--- a/src/clj/daisyproducer2/words/confirm.clj
+++ b/src/clj/daisyproducer2/words/confirm.clj
@@ -1,9 +1,11 @@
 (ns daisyproducer2.words.confirm
   (:require [conman.core :as conman]
             [daisyproducer2.db.core :as db]
+            [daisyproducer2.metrics :as metrics]
             [daisyproducer2.words :as words]
             [daisyproducer2.words.global :as global]
-            [daisyproducer2.words.local :as local]))
+            [daisyproducer2.words.local :as local]
+            [iapetos.collector.fn :as prometheus]))
 
 (defn get-words [limit offset]
   (->> (db/get-confirmable-words-aggregated {:limit limit :offset offset})
@@ -40,3 +42,5 @@
           ;; the number of additions.
           (global/put-word word))))))
 
+(prometheus/instrument! metrics/registry #'get-words)
+(prometheus/instrument! metrics/registry #'put-word)
diff --git a/src/clj/daisyproducer2/words/global.clj b/src/clj/daisyproducer2/words/global.clj
index f9018c4..4a1092d 100644
--- a/src/clj/daisyproducer2/words/global.clj
+++ b/src/clj/daisyproducer2/words/global.clj
@@ -1,9 +1,10 @@
 (ns daisyproducer2.words.global
-  (:require [clojure.string :as string]
-            [clojure.tools.logging :as log]
+  (:require [clojure.tools.logging :as log]
             [daisyproducer2.db.core :as db]
+            [daisyproducer2.metrics :as metrics]
             [daisyproducer2.whitelists.hyphenation :as hyphenations]
-            [daisyproducer2.words :as words]))
+            [daisyproducer2.words :as words]
+            [iapetos.collector.fn :as prometheus]))
 
 (defn get-words [{:keys [untranslated limit offset]}]
   (-> (db/find-global-words {:untranslated (db/search-to-sql untranslated)
@@ -33,3 +34,7 @@
        (words/to-db word words/hyphenation-keys words/hyphenation-mapping))
       (hyphenations/export))
     deletions))
+
+(prometheus/instrument! metrics/registry #'get-words)
+(prometheus/instrument! metrics/registry #'put-word)
+(prometheus/instrument! metrics/registry #'delete-word)
diff --git a/src/clj/daisyproducer2/words/local.clj b/src/clj/daisyproducer2/words/local.clj
index 5228833..5f55364 100644
--- a/src/clj/daisyproducer2/words/local.clj
+++ b/src/clj/daisyproducer2/words/local.clj
@@ -2,9 +2,11 @@
   (:require [clojure.string :as string]
             [clojure.tools.logging :as log]
             [daisyproducer2.db.core :as db]
+            [daisyproducer2.metrics :as metrics]
             [daisyproducer2.whitelists.async :as whitelists]
             [daisyproducer2.whitelists.hyphenation :as hyphenations]
-            [daisyproducer2.words :as words]))
+            [daisyproducer2.words :as words]
+            [iapetos.collector.fn :as prometheus]))
 
 (defn get-words
   "Retrieve all local words for given document-id `id`, `grade` and
@@ -61,3 +63,7 @@
       (hyphenations/export))
     (whitelists/export-local-tables (:document-id word))
     deletions))
+
+(prometheus/instrument! metrics/registry #'get-words)
+(prometheus/instrument! metrics/registry #'put-word)
+(prometheus/instrument! metrics/registry #'delete-word)
diff --git a/src/clj/daisyproducer2/words/unknown.clj b/src/clj/daisyproducer2/words/unknown.clj
index 063e0fa..8d95e69 100644
--- a/src/clj/daisyproducer2/words/unknown.clj
+++ b/src/clj/daisyproducer2/words/unknown.clj
@@ -4,7 +4,9 @@
             [clojure.string :as string]
             [clojure.tools.logging :as log]
             [daisyproducer2.db.core :as db]
+            [daisyproducer2.metrics :as metrics]
             [daisyproducer2.words :as words]
+            [iapetos.collector.fn :as prometheus]
             [sigel.xpath.core :as xpath]
             [sigel.xslt.core :as xslt]))
 
@@ -140,3 +142,5 @@
    (map words/complement-braille)
    (map words/complement-ellipsis-braille)
    (map words/complement-hyphenation)))
+
+(prometheus/instrument! metrics/registry #'get-words)