diff --git a/ruma-events/src/enums.rs b/ruma-events/src/enums.rs
index db329b29..8a8bf1bd 100644
--- a/ruma-events/src/enums.rs
+++ b/ruma-events/src/enums.rs
@@ -37,6 +37,8 @@ event_enum! {
         "m.call.hangup",
         "m.call.candidates",
         #[cfg(feature = "unstable-pre-spec")]
+        "m.key.verification.ready",
+        #[cfg(feature = "unstable-pre-spec")]
         "m.key.verification.start",
         #[cfg(feature = "unstable-pre-spec")]
         "m.key.verification.cancel",
diff --git a/ruma-events/src/key/verification.rs b/ruma-events/src/key/verification.rs
index f647e6c3..fc891734 100644
--- a/ruma-events/src/key/verification.rs
+++ b/ruma-events/src/key/verification.rs
@@ -21,6 +21,8 @@ pub mod accept;
 pub mod cancel;
 pub mod key;
 pub mod mac;
+#[cfg(feature = "unstable-pre-spec")]
+pub mod ready;
 pub mod request;
 pub mod start;
 
diff --git a/ruma-events/src/key/verification/ready.rs b/ruma-events/src/key/verification/ready.rs
new file mode 100644
index 00000000..a23674e9
--- /dev/null
+++ b/ruma-events/src/key/verification/ready.rs
@@ -0,0 +1,91 @@
+//! Types for the *m.key.verification.ready* event.
+
+use ruma_events_macros::MessageEventContent;
+use ruma_identifiers::DeviceIdBox;
+use serde::{Deserialize, Serialize};
+
+use super::{Relation, VerificationMethod};
+use crate::MessageEvent;
+
+/// Response to a previously sent *m.key.verification.request* message.
+pub type ReadyEvent = MessageEvent<ReadyEventContent>;
+
+/// The payload for `ReadyEvent`.
+#[derive(Clone, Debug, Deserialize, Serialize, MessageEventContent)]
+#[ruma_event(type = "m.key.verification.ready")]
+pub struct ReadyEventContent {
+    /// The device ID which is initiating the request.
+    pub from_device: DeviceIdBox,
+
+    /// The verification methods supported by the sender.
+    pub methods: Vec<VerificationMethod>,
+
+    /// Relation signaling which verification request this event is responding
+    /// to.
+    #[serde(rename = "m.relates_to")]
+    pub relation: Relation,
+}
+
+#[cfg(test)]
+mod tests {
+    use matches::assert_matches;
+    use ruma_identifiers::{event_id, DeviceIdBox};
+    use ruma_serde::Raw;
+    use serde_json::{from_value as from_json_value, json, to_value as to_json_value};
+
+    use super::{ReadyEventContent, Relation, VerificationMethod};
+
+    #[test]
+    fn serialization() {
+        let event_id = event_id!("$1598361704261elfgc:localhost");
+        let device: DeviceIdBox = "123".into();
+
+        let json_data = json!({
+            "from_device": device,
+            "methods": ["m.sas.v1"],
+            "m.relates_to": {
+                "rel_type": "m.reference",
+                "event_id": event_id,
+            }
+        });
+
+        let content = ReadyEventContent {
+            from_device: device,
+            relation: Relation { event_id },
+            methods: vec![VerificationMethod::MSasV1],
+        };
+
+        assert_eq!(to_json_value(&content).unwrap(), json_data);
+    }
+
+    #[test]
+    fn deserialization() {
+        let id = event_id!("$1598361704261elfgc:localhost");
+        let device: DeviceIdBox = "123".into();
+
+        let json_data = json!({
+            "from_device": device,
+            "methods": ["m.sas.v1"],
+            "m.relates_to": {
+                "rel_type": "m.reference",
+                "event_id": id,
+            }
+        });
+
+        assert_matches!(
+            from_json_value::<Raw<ReadyEventContent>>(json_data)
+                .unwrap()
+                .deserialize()
+                .unwrap(),
+            ReadyEventContent {
+                from_device,
+                relation: Relation {
+                    event_id
+                },
+                methods,
+            } if from_device == device
+                && methods == vec![VerificationMethod::MSasV1]
+                && event_id == id
+        );
+    }
+}