diff --git a/schema/cryptography-defs.json b/schema/cryptography-defs.json
index 0a2bdff6..8a3ebe99 100644
--- a/schema/cryptography-defs.json
+++ b/schema/cryptography-defs.json
@@ -1028,6 +1028,21 @@
         }
       ]
     },
+    {
+      "family": "OPAQUE",
+      "standard": [
+        {
+          "name": "RFC9807",
+          "url": "https://doi.org/10.17487/RFC9807"
+        }
+      ],
+      "variant": [
+        {
+          "pattern": "OPAQUE-3DH[-{group}][-{hashFunction}][-{ksf}][-{kdf}][-{mac}]",
+          "primitive": "key-agree"
+        }
+      ]
+    },
     {
       "family": "MILENAGE",
       "standard": [
diff --git a/schema/cryptography-defs.schema.json b/schema/cryptography-defs.schema.json
index 1a873a01..ef8aed63 100644
--- a/schema/cryptography-defs.schema.json
+++ b/schema/cryptography-defs.schema.json
@@ -285,6 +285,7 @@
         "ML-DSA",
         "ML-KEM",
         "MQV",
+        "OPAQUE",
         "PBES1",
         "PBES2",
         "PBKDF1",