diff --git a/internal/api/types.go b/internal/api/types.go
index 6e4ba7b..a00da91 100644
--- a/internal/api/types.go
+++ b/internal/api/types.go
@@ -281,6 +281,10 @@ type APIKey struct {
 	Key        string     `json:"key,omitempty"` // only present in create response
 	CreatedAt  time.Time  `json:"created_at"`
 	LastUsedAt *time.Time `json:"last_used_at"`
+	// ExpiresAt is nil for a key that never expires, including on a server
+	// old enough to not send the field at all — same decoded result either
+	// way. Not yet surfaced anywhere in the TUI.
+	ExpiresAt *time.Time `json:"expires_at,omitempty"`
 }
 
 // SimilarIncident is an earlier, resolved incident with the same signature