diff --git a/roles/grafana/files/dashboards/synapse.json b/roles/grafana/files/dashboards/synapse.json
new file mode 100644
index 0000000000000000000000000000000000000000..453ea4b868e9d1c1a7dd0a0902e9b08336e95eeb
--- /dev/null
+++ b/roles/grafana/files/dashboards/synapse.json
@@ -0,0 +1,10474 @@
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+              "max": null,
+              "min": null,
+              "show": true
+            },
+            {
+              "$$hashKey": "object:391",
+              "format": "short",
+              "label": null,
+              "logBase": 1,
+              "max": null,
+              "min": null,
+              "show": true
+            }
+          ],
+          "yaxis": {
+            "align": false,
+            "alignLevel": null
+          }
+        },
+        {
+          "cards": {
+            "cardPadding": -1,
+            "cardRound": null
+          },
+          "color": {
+            "cardColor": "#b4ff00",
+            "colorScale": "sqrt",
+            "colorScheme": "interpolateInferno",
+            "exponent": 0.5,
+            "min": 0,
+            "mode": "spectrum"
+          },
+          "dataFormat": "tsbuckets",
+          "datasource": "$datasource",
+          "fieldConfig": {
+            "defaults": {
+              "custom": {}
+            },
+            "overrides": []
+          },
+          "gridPos": {
+            "h": 9,
+            "w": 12,
+            "x": 0,
+            "y": 9
+          },
+          "heatmap": {},
+          "hideZeroBuckets": false,
+          "highlightCards": true,
+          "id": 195,
+          "legend": {
+            "show": false
+          },
+          "links": [],
+          "reverseYBuckets": false,
+          "targets": [
+            {
+              "expr": "sum(rate(synapse_external_cache_response_time_seconds_bucket{index=~\"$index\",instance=\"$instance\",job=\"$job\"}[$bucket_size])) by (le)",
+              "format": "heatmap",
+              "instant": false,
+              "interval": "",
+              "intervalFactor": 1,
+              "legendFormat": "{{le}}",
+              "refId": "A"
+            }
+          ],
+          "title": "External Cache Response Time",
+          "tooltip": {
+            "show": true,
+            "showHistogram": true
+          },
+          "tooltipDecimals": 2,
+          "type": "heatmap",
+          "xAxis": {
+            "show": true
+          },
+          "xBucketNumber": null,
+          "xBucketSize": null,
+          "yAxis": {
+            "decimals": 0,
+            "format": "s",
+            "logBase": 1,
+            "max": null,
+            "min": null,
+            "show": true,
+            "splitFactor": null
+          },
+          "yBucketBound": "auto",
+          "yBucketNumber": null,
+          "yBucketSize": null
+        }
+      ],
+      "title": "External Cache",
+      "type": "row"
+    }
+  ],
+  "refresh": false,
+  "schemaVersion": 26,
+  "style": "dark",
+  "tags": [
+    "matrix"
+  ],
+  "templating": {
+    "list": [
+      {
+        "current": {
+          "selected": false,
+          "text": "default",
+          "value": "default"
+        },
+        "error": null,
+        "hide": 0,
+        "includeAll": false,
+        "label": null,
+        "multi": false,
+        "name": "datasource",
+        "options": [],
+        "query": "prometheus",
+        "queryValue": "",
+        "refresh": 1,
+        "regex": "",
+        "skipUrlSync": false,
+        "type": "datasource"
+      },
+      {
+        "allFormat": "glob",
+        "auto": true,
+        "auto_count": 100,
+        "auto_min": "60s",
+        "current": {
+          "selected": false,
+          "text": "auto",
+          "value": "$__auto_interval_bucket_size"
+        },
+        "datasource": null,
+        "error": null,
+        "hide": 0,
+        "includeAll": false,
+        "label": "Bucket Size",
+        "multi": false,
+        "multiFormat": "glob",
+        "name": "bucket_size",
+        "options": [
+          {
+            "selected": true,
+            "text": "auto",
+            "value": "$__auto_interval_bucket_size"
+          },
+          {
+            "selected": false,
+            "text": "30s",
+            "value": "30s"
+          },
+          {
+            "selected": false,
+            "text": "1m",
+            "value": "1m"
+          },
+          {
+            "selected": false,
+            "text": "2m",
+            "value": "2m"
+          },
+          {
+            "selected": false,
+            "text": "5m",
+            "value": "5m"
+          },
+          {
+            "selected": false,
+            "text": "10m",
+            "value": "10m"
+          },
+          {
+            "selected": false,
+            "text": "15m",
+            "value": "15m"
+          }
+        ],
+        "query": "30s,1m,2m,5m,10m,15m",
+        "queryValue": "",
+        "refresh": 2,
+        "skipUrlSync": false,
+        "type": "interval"
+      },
+      {
+        "allValue": null,
+        "current": {},
+        "datasource": "$datasource",
+        "definition": "",
+        "error": null,
+        "hide": 0,
+        "includeAll": false,
+        "label": null,
+        "multi": false,
+        "name": "instance",
+        "options": [],
+        "query": "label_values(synapse_util_metrics_block_ru_utime_seconds, instance)",
+        "refresh": 2,
+        "regex": "",
+        "skipUrlSync": false,
+        "sort": 1,
+        "tagValuesQuery": "",
+        "tags": [],
+        "tagsQuery": "",
+        "type": "query",
+        "useTags": false
+      },
+      {
+        "allFormat": "regex wildcard",
+        "allValue": "",
+        "current": {},
+        "datasource": "$datasource",
+        "definition": "",
+        "error": null,
+        "hide": 0,
+        "hideLabel": false,
+        "includeAll": true,
+        "label": "Job",
+        "multi": true,
+        "multiFormat": "regex values",
+        "name": "job",
+        "options": [],
+        "query": "label_values(synapse_util_metrics_block_ru_utime_seconds, job)",
+        "refresh": 2,
+        "refresh_on_load": false,
+        "regex": "",
+        "skipUrlSync": false,
+        "sort": 1,
+        "tagValuesQuery": "",
+        "tags": [],
+        "tagsQuery": "",
+        "type": "query",
+        "useTags": false
+      },
+      {
+        "allFormat": "regex wildcard",
+        "allValue": ".*",
+        "current": {},
+        "datasource": "$datasource",
+        "definition": "",
+        "error": null,
+        "hide": 0,
+        "hideLabel": false,
+        "includeAll": true,
+        "label": "",
+        "multi": true,
+        "multiFormat": "regex values",
+        "name": "index",
+        "options": [],
+        "query": "label_values(synapse_util_metrics_block_ru_utime_seconds, index)",
+        "refresh": 2,
+        "refresh_on_load": false,
+        "regex": "",
+        "skipUrlSync": false,
+        "sort": 3,
+        "tagValuesQuery": "",
+        "tags": [],
+        "tagsQuery": "",
+        "type": "query",
+        "useTags": false
+      }
+    ]
+  },
+  "time": {
+    "from": "now-3h",
+    "to": "now"
+  },
+  "timepicker": {
+    "now": true,
+    "refresh_intervals": [
+      "5s",
+      "10s",
+      "30s",
+      "1m",
+      "5m",
+      "15m",
+      "30m",
+      "1h",
+      "2h",
+      "1d"
+    ],
+    "time_options": [
+      "5m",
+      "15m",
+      "1h",
+      "6h",
+      "12h",
+      "24h",
+      "2d",
+      "7d",
+      "30d"
+    ]
+  },
+  "timezone": "",
+  "title": "Synapse",
+  "uid": "000000012",
+  "version": 90
+}
\ No newline at end of file
diff --git a/roles/prometheus/defaults/main.yml b/roles/prometheus/defaults/main.yml
index dcdfda8c73f3fb032647099f1f55c5cd3534a708..e1c142c64d8a13c1321ff45fceb69465ce6539e1 100644
--- a/roles/prometheus/defaults/main.yml
+++ b/roles/prometheus/defaults/main.yml
@@ -60,3 +60,9 @@ blackbox_targets:
   smtp_starttls:
     - mail.archlinux.org:25
     - lists.archlinux.org:25
+matrix_metrics_endpoints:
+  - homeserver
+  - appservice
+  - federation_reader
+  - federation_writer
+  - media_repository
diff --git a/roles/prometheus/templates/prometheus.yml.j2 b/roles/prometheus/templates/prometheus.yml.j2
index a0549850d1422380ccb255bf0870b6155394f39a..df3f4e0b6a2c92f385cfd22d39f609709858c496 100644
--- a/roles/prometheus/templates/prometheus.yml.j2
+++ b/roles/prometheus/templates/prometheus.yml.j2
@@ -153,4 +153,16 @@ scrape_configs:
       - target_label: __address__
         replacement: 127.0.0.1:9115
 {% endfor %}
+{% for endpoint in matrix_metrics_endpoints %}
+
+  - job_name: 'synapse_{{ endpoint }}'
+    scrape_interval: 15s
+    metrics_path: "/metrics/synapse.{{ endpoint }}"
+    scheme: https
+    basic_auth:
+      username: {{ vault_matrix_secrets.metrics_user }}
+      password: {{ vault_matrix_secrets.metrics_password }}
+    static_configs:
+      - targets: ["matrix.archlinux.org:443"]
+{% endfor %}
 {% endif %}