diff --git a/main.go b/main.go
index d8855d8..f5c5f5c 100644
--- a/main.go
+++ b/main.go
@@ -89,6 +89,7 @@ func newHandler(cfg Config) http.HandlerFunc {
 	mux.Handle("GET /api/v1/version", http.HandlerFunc(newHandlerGetAPIV1Version))
 	mux.Handle("POST /api/v1/events/slack", http.HandlerFunc(newHandlerPostAPIV1EventsSlack(cfg)))
 	mux.Handle("PUT /api/v1/rpc/scrapeslack", http.HandlerFunc(newHandlerPutAPIV1RPCScrapeSlack(cfg)))
+	mux.Handle("GET /api/v1/rpc/aievent", http.HandlerFunc(newHandlerGetAPIV1RPCAIEvent(cfg)))
 
 	return func(w http.ResponseWriter, r *http.Request) {
 		if cfg.Debug {
@@ -107,6 +108,16 @@ func newHandlerGetAPIV1Version(w http.ResponseWriter, _ *http.Request) {
 	json.NewEncoder(w).Encode(map[string]any{"version": Version})
 }
 
+func newHandlerGetAPIV1RPCAIEvent(cfg Config) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if !basicAuth(cfg, w, r) {
+			return
+		}
+
+		http.Error(w, "not impl", http.StatusNotImplemented)
+	}
+}
+
 func newHandlerPutAPIV1RPCScrapeSlack(cfg Config) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		if !basicAuth(cfg, w, r) {
diff --git a/storage.go b/storage.go
index fe166f8..a17e81f 100644
--- a/storage.go
+++ b/storage.go
@@ -67,10 +67,60 @@ func (s Storage) GetThread(ctx context.Context, ID string) (model.Thread, error)
 	return v, err
 }
 
+func (s Storage) GetThreadMessages(ctx context.Context, ID string) ([]model.Message, error) {
+	return s.selectMessagesWhere(ctx, "ThreadID = $1", ID)
+}
+
 func (s Storage) UpsertThread(ctx context.Context, thread model.Thread) error {
 	return s.upsert(ctx, "threads", thread)
 }
 
+func (s Storage) selectMessagesWhere(ctx context.Context, clause string, args ...any) ([]model.Message, error) {
+	keys, _, _, _, err := keysArgsKeyargsValues(model.Message{})
+	if err != nil {
+		return nil, err
+	}
+	args2 := make([]any, len(args))
+	for i := range args {
+		args2[i], _ = json.Marshal(args[i])
+	}
+	scanTargets := make([]any, len(keys))
+
+	q := fmt.Sprintf(`
+		SELECT %s FROM messages WHERE %s
+	`, strings.Join(keys, ", "), clause)
+	rows, err := s.driver.QueryContext(ctx, q, args2...)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var result []model.Message
+	for rows.Next() {
+		for i := range scanTargets {
+			scanTargets[i] = &[]byte{}
+		}
+
+		if err := rows.Scan(scanTargets...); err != nil {
+			return nil, err
+		}
+
+		m := map[string]json.RawMessage{}
+		for i, k := range keys {
+			m[k] = *scanTargets[i].(*[]byte)
+		}
+		b, _ := json.Marshal(m)
+
+		var one model.Message
+		if err := json.Unmarshal(b, &one); err != nil {
+			return nil, err
+		}
+		result = append(result, one)
+	}
+
+	return result, rows.Err()
+}
+
 func (s Storage) selectOne(ctx context.Context, table string, v any, clause string, args ...any) error {
 	if questions := strings.Count(clause, "$"); questions != len(args) {
 		return fmt.Errorf("expected %v args for clause but found %v", questions, len(args))
diff --git a/storage_test.go b/storage_test.go
index 02114bf..afefd30 100644
--- a/storage_test.go
+++ b/storage_test.go
@@ -2,6 +2,8 @@ package main
 
 import (
 	"context"
+	"fmt"
+	"math/rand"
 	"testing"
 	"time"
 
@@ -85,4 +87,34 @@ func TestStorage(t *testing.T) {
 			t.Fatal("unexpected result from get:", got)
 		}
 	})
+
+	t.Run("thread messages", func(t *testing.T) {
+		thread := fmt.Sprintf("thread-%d", rand.Int())
+		m := model.NewMessage(
+			"ID",
+			1,
+			"Author",
+			"Plaintext",
+			thread,
+		)
+
+		if err := s.UpsertMessage(ctx, m); err != nil {
+			t.Fatal("unexpected error on insert:", err)
+		} else if m2, err := s.GetMessage(ctx, m.ID); err != nil {
+			t.Fatal("unexpected error on upsert-get:", err)
+		} else if m2 != m {
+			t.Errorf("expected %+v but got %+v", m, m2)
+		}
+
+		msgs, err := s.GetThreadMessages(ctx, thread)
+		if err != nil {
+			t.Fatal(err)
+		} else if len(msgs) != 1 {
+			t.Fatal(msgs)
+		} else if msgs[0].ThreadID != m.ThreadID {
+			t.Fatal(msgs[0].ThreadID)
+		} else if msgs[0] != m {
+			t.Fatalf("wanted msgs like %+v but got %+v", m, msgs[0])
+		}
+	})
 }