diff --git a/pkg/acl/acltree/acltree.go b/pkg/acl/acltree/acltree.go
index 0cfcac3f..4697be1e 100644
--- a/pkg/acl/acltree/acltree.go
+++ b/pkg/acl/acltree/acltree.go
@@ -60,6 +60,7 @@ type ACLTree interface {
 	SnapshotPath() []string
 	ChangesAfterCommonSnapshot(snapshotPath []string) ([]*aclpb.RawChange, error)
 	Storage() treestorage.TreeStorage
+	DebugDump() (string, error)
 
 	Close() error
 }
@@ -475,6 +476,10 @@ func (a *aclTree) ChangesAfterCommonSnapshot(theirPath []string) ([]*aclpb.RawCh
 	return rawChanges, nil
 }
 
+func (a *aclTree) DebugDump() (string, error) {
+	return a.fullTree.Graph()
+}
+
 func (a *aclTree) commonSnapshotForTwoPaths(ourPath []string, theirPath []string) (string, error) {
 	var i int
 	var j int
diff --git a/service/api/service.go b/service/api/service.go
new file mode 100644
index 00000000..44be8430
--- /dev/null
+++ b/service/api/service.go
@@ -0,0 +1,113 @@
+package api
+
+import (
+	"context"
+	"fmt"
+	"github.com/anytypeio/go-anytype-infrastructure-experiments/app"
+	"github.com/anytypeio/go-anytype-infrastructure-experiments/app/logger"
+	"github.com/anytypeio/go-anytype-infrastructure-experiments/pkg/acl/acltree"
+	"github.com/anytypeio/go-anytype-infrastructure-experiments/service/sync/document"
+	"github.com/anytypeio/go-anytype-infrastructure-experiments/service/treecache"
+	"go.uber.org/zap"
+	"io"
+	"net/http"
+)
+
+const CName = "APIService"
+
+var log = logger.NewNamed("api")
+
+func New() app.Component {
+	return &service{}
+}
+
+type service struct {
+	treeCache       treecache.Service
+	documentService document.Service
+	srv             *http.Server
+}
+
+func (s *service) Init(ctx context.Context, a *app.App) (err error) {
+	s.treeCache = a.MustComponent(treecache.CName).(treecache.Service)
+	s.documentService = a.MustComponent(document.CName).(document.Service)
+	return nil
+}
+
+func (s *service) Name() (name string) {
+	return CName
+}
+
+func (s *service) Run(ctx context.Context) (err error) {
+	s.srv = &http.Server{
+		Addr: ":8080",
+	}
+	mux := http.NewServeMux()
+	mux.HandleFunc("/treeDump", s.treeDump)
+	mux.HandleFunc("/createDocument", s.createDocument)
+	mux.HandleFunc("/appendDocument", s.appendDocument)
+	s.srv.Handler = mux
+
+	return s.srv.ListenAndServe()
+}
+
+func (s *service) Close(ctx context.Context) (err error) {
+	return s.srv.Shutdown(ctx)
+}
+
+func (s *service) treeDump(w http.ResponseWriter, req *http.Request) {
+	var (
+		query  = req.URL.Query()
+		treeId = query.Get("treeId")
+		dump   string
+		err    error
+	)
+	err = s.treeCache.Do(context.Background(), treeId, func(tree acltree.ACLTree) error {
+		dump, err = tree.DebugDump()
+		if err != nil {
+			return err
+		}
+		return nil
+	})
+	if err != nil {
+		sendText(w, http.StatusInternalServerError, err.Error())
+		return
+	}
+	sendText(w, http.StatusOK, dump)
+}
+
+func (s *service) createDocument(w http.ResponseWriter, req *http.Request) {
+	var (
+		query = req.URL.Query()
+		text  = query.Get("text")
+	)
+	treeId, err := s.documentService.CreateDocument(context.Background(), text)
+	if err != nil {
+		sendText(w, http.StatusInternalServerError, err.Error())
+		return
+	}
+	sendText(w, http.StatusOK, treeId)
+}
+
+func (s *service) appendDocument(w http.ResponseWriter, req *http.Request) {
+	var (
+		query  = req.URL.Query()
+		text   = query.Get("text")
+		treeId = query.Get("treeId")
+	)
+	err := s.documentService.UpdateDocument(context.Background(), treeId, text)
+	if err != nil {
+		sendText(w, http.StatusInternalServerError, err.Error())
+		return
+	}
+	sendText(w, http.StatusOK, "")
+}
+
+func sendText(r http.ResponseWriter, code int, body string) {
+	r.Header().Set("Content-Type", "text/plain")
+	r.WriteHeader(code)
+
+	_, err := io.WriteString(r, fmt.Sprintf("%s\n", body))
+	if err != nil {
+		log.Error("writing response failed", zap.Error(err))
+	}
+}