diff --git a/internal/httpapi/handlers/topics.go b/internal/httpapi/handlers/topics.go
index d1e81c8..fda0edb 100644
--- a/internal/httpapi/handlers/topics.go
+++ b/internal/httpapi/handlers/topics.go
@@ -16,9 +16,12 @@ import (
 
 type TopicsHandler struct {
 	store *store.TopicStore
+	camps *store.CampStore
 }
 
-func NewTopicsHandler(s *store.TopicStore) *TopicsHandler { return &TopicsHandler{store: s} }
+func NewTopicsHandler(s *store.TopicStore, c *store.CampStore) *TopicsHandler {
+	return &TopicsHandler{store: s, camps: c}
+}
 
 // GET /api/topics?status=...&visibility=...&limit=...&offset=...
 //
@@ -75,7 +78,26 @@ func (h *TopicsHandler) Get(w http.ResponseWriter, r *http.Request) {
 		http.Error(w, "not found", http.StatusNotFound) // 404 not 403 — hide existence
 		return
 	}
-	writeJSON(w, http.StatusOK, t)
+	// Enrich with camps so an agent can locate their own allocation in one
+	// round-trip. Camps are 0 rows pre-signup_close, 3 rows after — small
+	// enough that inlining costs nothing. Arguments are deliberately NOT
+	// inlined (potentially large; agents who need the transcript should
+	// hit GET /api/topics/{id}/arguments via dialectic_list_arguments).
+	//
+	// Backward-compatible: existing callers reading the original Topic
+	// fields keep working; new callers can read `camps` alongside.
+	camps, cErr := h.camps.ListByTopic(r.Context(), id)
+	if cErr != nil {
+		camps = nil // best-effort; metadata still useful
+	}
+	// Marshal Topic into a map and add `camps` as a sibling field rather
+	// than wrapping under "topic" — that would break every existing
+	// consumer that reads e.g. response.title / response.status directly.
+	buf, _ := json.Marshal(t)
+	out := map[string]any{}
+	_ = json.Unmarshal(buf, &out)
+	out["camps"] = camps
+	writeJSON(w, http.StatusOK, out)
 }
 
 type createTopicBody struct {
diff --git a/internal/httpapi/routes.go b/internal/httpapi/routes.go
index 5a2347e..ce19ca0 100644
--- a/internal/httpapi/routes.go
+++ b/internal/httpapi/routes.go
@@ -60,7 +60,7 @@ func Mount(cfg *config.Config, db *sqlx.DB, version string) http.Handler {
 	verdictStore := store.NewVerdictStore(db)
 
 	health := handlers.NewHealthHandler(db, version)
-	topicsH := handlers.NewTopicsHandler(topicStore)
+	topicsH := handlers.NewTopicsHandler(topicStore, campStore)
 	signupsH := handlers.NewSignupsHandler(topicStore, signupStore)
 	argsH := handlers.NewArgumentsHandler(topicStore, campStore, roundStore, argStore)
 	announcer := fabric.NewAnnouncer(cfg.FabricSystemAPIKey)