diff --git a/pylib/anki/_backend/__init__.py b/pylib/anki/_backend/__init__.py
index e01a6bd99..718fbbf48 100644
--- a/pylib/anki/_backend/__init__.py
+++ b/pylib/anki/_backend/__init__.py
@@ -106,12 +106,22 @@ class RustBackend(RustBackendGenerated):
     def translate(
         self, module_index: int, message_index: int, **kwargs: str | int | float
     ) -> str:
-        return self.translate_string(
-            translate_string_in(
-                module_index=module_index, message_index=message_index, **kwargs
-            )
+        args = {
+            k: i18n_pb2.TranslateArgValue(str=v)
+            if isinstance(v, str)
+            else i18n_pb2.TranslateArgValue(number=v)
+            for k, v in kwargs.items()
+        }
+
+        input = i18n_pb2.TranslateStringRequest(
+            module_index=module_index,
+            message_index=message_index,
+            args=args,
         )
 
+        output_bytes = self.translate_string_raw(input.SerializeToString())
+        return anki.generic_pb2.String.FromString(output_bytes).val
+
     def format_time_span(
         self,
         seconds: Any,
@@ -123,31 +133,17 @@ class RustBackend(RustBackendGenerated):
         )
         return self.format_timespan(seconds=seconds, context=context)
 
-    def _run_command(self, service: int, method: int, input: Any) -> bytes:
-        input_bytes = input.SerializeToString()
+    def _run_command(self, service: int, method: int, input: bytes) -> bytes:
         try:
-            return self._backend.command(service, method, input_bytes)
+            return self._backend.command(service, method, input)
         except Exception as error:
-            err_bytes = bytes(error.args[0])
+            error_bytes = bytes(error.args[0])
+
         err = backend_pb2.BackendError()
-        err.ParseFromString(err_bytes)
+        err.ParseFromString(error_bytes)
         raise backend_exception_to_pylib(err)
 
 
-def translate_string_in(
-    module_index: int, message_index: int, **kwargs: str | int | float
-) -> i18n_pb2.TranslateStringRequest:
-    args = {
-        k: i18n_pb2.TranslateArgValue(str=v)
-        if isinstance(v, str)
-        else i18n_pb2.TranslateArgValue(number=v)
-        for k, v in kwargs.items()
-    }
-    return i18n_pb2.TranslateStringRequest(
-        module_index=module_index, message_index=message_index, args=args
-    )
-
-
 class Translations(GeneratedTranslations):
     def __init__(self, backend: ref[RustBackend] | None):
         self.backend = backend
diff --git a/pylib/anki/_backend/genbackend.py b/pylib/anki/_backend/genbackend.py
index e4ce2f801..a22fd9599 100755
--- a/pylib/anki/_backend/genbackend.py
+++ b/pylib/anki/_backend/genbackend.py
@@ -51,24 +51,7 @@ LABEL_OPTIONAL = 1
 LABEL_REQUIRED = 2
 LABEL_REPEATED = 3
 
-# messages we don't want to unroll in codegen
-SKIP_UNROLL_INPUT = {
-    "TranslateString",
-    "SetPreferences",
-    "UpdateDeckConfigs",
-    "AnswerCard",
-    "ChangeNotetype",
-    "CompleteTag",
-}
-SKIP_UNROLL_OUTPUT = {"GetPreferences"}
-
-SKIP_DECODE = {
-    "Graphs",
-    "GetGraphPreferences",
-    "GetChangeNotetypeInfo",
-    "CompleteTag",
-    "CardStats",
-}
+RAW_ONLY = {"TranslateString"}
 
 
 def python_type(field):
@@ -116,62 +99,59 @@ def fix_snakecase(name):
     return name
 
 
-def get_input_args(msg):
-    fields = sorted(msg.fields, key=lambda x: x.number)
+def get_input_args(input_type):
+    fields = sorted(input_type.fields, key=lambda x: x.number)
     self_star = ["self"]
     if len(fields) >= 2:
         self_star.append("*")
     return ", ".join(self_star + [f"{f.name}: {python_type(f)}" for f in fields])
 
 
-def get_input_assign(msg):
-    fields = sorted(msg.fields, key=lambda x: x.number)
+def get_input_assign(input_type):
+    fields = sorted(input_type.fields, key=lambda x: x.number)
     return ", ".join(f"{f.name}={f.name}" for f in fields)
 
 
 def render_method(service_idx, method_idx, method):
-    input_name = method.input_type.name
-    if (
-        (input_name.endswith("Request") or len(method.input_type.fields) < 2)
-        and not method.input_type.oneofs
-        and not method.name in SKIP_UNROLL_INPUT
-    ):
-        input_args = get_input_args(method.input_type)
-        input_assign = get_input_assign(method.input_type)
-        input_assign_outer = (
-            f"input = {fullname(method.input_type.full_name)}({input_assign})\n        "
-        )
-    else:
-        input_args = f"self, input: {fullname(method.input_type.full_name)}"
-        input_assign_outer = ""
     name = fix_snakecase(stringcase.snakecase(method.name))
+    input_name = method.input_type.name
+
+    if (
+        input_name.endswith("Request") or len(method.input_type.fields) < 2
+    ) and not method.input_type.oneofs:
+        input_params = get_input_args(method.input_type)
+        input_assign_full = f"message = {fullname(method.input_type.full_name)}({get_input_assign(method.input_type)})"
+    else:
+        input_params = f"self, message: {fullname(method.input_type.full_name)}"
+        input_assign_full = ""
+
     if (
         len(method.output_type.fields) == 1
         and method.output_type.fields[0].type != TYPE_ENUM
-        and method.name not in SKIP_UNROLL_OUTPUT
     ):
         # unwrap single return arg
         f = method.output_type.fields[0]
-        single_field = f".{f.name}"
         return_type = python_type(f)
+        single_attribute = f".{f.name}"
     else:
-        single_field = ""
         return_type = fullname(method.output_type.full_name)
-
-    if method.name in SKIP_DECODE:
-        return_type = "bytes"
+        single_attribute = ""
 
     buf = f"""\
-    def {name}({input_args}) -> {return_type}:
-        {input_assign_outer}"""
+    def {name}_raw(self, message: bytes) -> bytes:
+        return self._run_command({service_idx}, {method_idx}, message)
 
-    if method.name in SKIP_DECODE:
-        buf += f"""return self._run_command({service_idx}, {method_idx}, input)
 """
-    else:
-        buf += f"""output = {fullname(method.output_type.full_name)}()
-        output.ParseFromString(self._run_command({service_idx}, {method_idx}, input))
-        return output{single_field}
+
+    if not method.name in RAW_ONLY:
+        buf += f"""\
+    def {name}({input_params}) -> {return_type}:
+        {input_assign_full}
+        raw_bytes = self._run_command({service_idx}, {method_idx}, message.SerializeToString())
+        output = {fullname(method.output_type.full_name)}()
+        output.ParseFromString(raw_bytes)
+        return output{single_attribute}
+
 """
 
     return buf
@@ -235,7 +215,7 @@ or removed at any time. Instead, please use the methods on the collection
 instead. Eg, don't use col.backend.all_deck_config(), instead use
 col.decks.all_config()
 """
-    
+
 from typing import *
 
 import anki
diff --git a/pylib/anki/collection.py b/pylib/anki/collection.py
index 37642cf56..7eaac67f2 100644
--- a/pylib/anki/collection.py
+++ b/pylib/anki/collection.py
@@ -804,25 +804,12 @@ class Collection(DeprecatedNamesMixin):
 
         return CollectionStats(self)
 
-    def card_stats_data(self, card_id: CardId) -> bytes:
+    def card_stats_data(self, card_id: CardId) -> stats_pb2.CardStatsResponse:
         return self._backend.card_stats(card_id)
 
     def studied_today(self) -> str:
         return self._backend.studied_today()
 
-    def graph_data(self, search: str, days: int) -> bytes:
-        return self._backend.graphs(search=search, days=days)
-
-    def get_graph_preferences(self) -> bytes:
-        return self._backend.get_graph_preferences()
-
-    def set_graph_preferences(self, prefs: GraphPreferences) -> None:
-        self._backend.set_graph_preferences(input=prefs)
-
-    def congrats_info(self) -> bytes:
-        "Don't use this, it will likely go away in the future."
-        return self._backend.congrats_info().SerializeToString()
-
     # Undo
     ##########################################################################
 
diff --git a/pylib/anki/decks.py b/pylib/anki/decks.py
index 1baabbe71..38a4d069c 100644
--- a/pylib/anki/decks.py
+++ b/pylib/anki/decks.py
@@ -285,7 +285,8 @@ class DeckManager(DeprecatedNamesMixin):
         return self.col._backend.get_deck_configs_for_update(deck_id)
 
     def update_deck_configs(self, input: UpdateDeckConfigs) -> OpChanges:
-        return self.col._backend.update_deck_configs(input=input)
+        op_bytes = self.col._backend.update_deck_configs_raw(input.SerializeToString())
+        return OpChanges.FromString(op_bytes)
 
     def all_config(self) -> list[DeckConfigDict]:
         "A list of all deck config."
diff --git a/pylib/anki/models.py b/pylib/anki/models.py
index 96ca68888..c6afcc876 100644
--- a/pylib/anki/models.py
+++ b/pylib/anki/models.py
@@ -370,7 +370,7 @@ and notes.mid = ? and cards.ord = ?""",
 
     def change_notetype_info(
         self, *, old_notetype_id: NotetypeId, new_notetype_id: NotetypeId
-    ) -> bytes:
+    ) -> ChangeNotetypeInfo:
         return self.col._backend.get_change_notetype_info(
             old_notetype_id=old_notetype_id, new_notetype_id=new_notetype_id
         )
@@ -388,7 +388,8 @@ and notes.mid = ? and cards.ord = ?""",
         field/template count. Each value represents the index in the previous
         notetype. -1 indicates the original value will be discarded.
         """
-        return self.col._backend.change_notetype(input)
+        op_bytes = self.col._backend.change_notetype_raw(input.SerializeToString())
+        return OpChanges.FromString(op_bytes)
 
     # legacy API - used by unit tests and add-ons
 
@@ -414,15 +415,13 @@ and notes.mid = ? and cards.ord = ?""",
             template_map = self._convert_legacy_map(cmap, len(newModel["tmpls"]))
 
         self.col._backend.change_notetype(
-            ChangeNotetypeRequest(
-                note_ids=nids,
-                new_fields=field_map,
-                new_templates=template_map,
-                old_notetype_name=notetype["name"],
-                old_notetype_id=notetype["id"],
-                new_notetype_id=newModel["id"],
-                current_schema=self.col.db.scalar("select scm from col"),
-            )
+            note_ids=nids,
+            new_fields=field_map,
+            new_templates=template_map,
+            old_notetype_name=notetype["name"],
+            old_notetype_id=notetype["id"],
+            new_notetype_id=newModel["id"],
+            current_schema=self.col.db.scalar("select scm from col"),
         )
 
     def _convert_legacy_map(
diff --git a/pylib/anki/scheduler/v3.py b/pylib/anki/scheduler/v3.py
index 0c959f968..af4fcaed8 100644
--- a/pylib/anki/scheduler/v3.py
+++ b/pylib/anki/scheduler/v3.py
@@ -86,7 +86,8 @@ class Scheduler(SchedulerBaseWithLegacy):
     def answer_card(self, input: CardAnswer) -> OpChanges:
         "Update card to provided state, and remove it from queue."
         self.reps += 1
-        return self.col._backend.answer_card(input=input)
+        op_bytes = self.col._backend.answer_card_raw(input.SerializeToString())
+        return OpChanges.FromString(op_bytes)
 
     def state_is_leech(self, new_state: SchedulingState) -> bool:
         "True if new state marks the card as a leech."
diff --git a/pylib/anki/tags.py b/pylib/anki/tags.py
index 390900ae4..0e894ec75 100644
--- a/pylib/anki/tags.py
+++ b/pylib/anki/tags.py
@@ -26,6 +26,7 @@ from anki.utils import ids2str
 
 # public exports
 TagTreeNode = tags_pb2.TagTreeNode
+CompleteTagRequest = tags_pb2.CompleteTagRequest
 MARKED_TAG = "marked"
 
 
@@ -68,11 +69,6 @@ class TagManager(DeprecatedNamesMixin):
         "Set browser expansion state for tag, registering the tag if missing."
         return self.col._backend.set_tag_collapsed(name=tag, collapsed=collapsed)
 
-    def complete_tag(self, input_bytes: bytes) -> bytes:
-        input = tags_pb2.CompleteTagRequest()
-        input.ParseFromString(input_bytes)
-        return self.col._backend.complete_tag(input)
-
     # Bulk addition/removal from specific notes
     #############################################################
 
diff --git a/pylib/tests/test_stats.py b/pylib/tests/test_stats.py
index dd19d8e01..1fd9b27de 100644
--- a/pylib/tests/test_stats.py
+++ b/pylib/tests/test_stats.py
@@ -15,14 +15,13 @@ def test_stats():
     col.addNote(note)
     c = note.cards()[0]
     # card stats
-    card_stats = CardStats()
-    card_stats.ParseFromString(col.card_stats_data(c.id))
+    card_stats = col.card_stats_data(c.id)
     assert card_stats.note_id == note.id
     col.reset()
     c = col.sched.getCard()
     col.sched.answerCard(c, 3)
     col.sched.answerCard(c, 2)
-    card_stats.ParseFromString(col.card_stats_data(c.id))
+    card_stats = col.card_stats_data(c.id)
     assert len(card_stats.revlog) == 2
 
 
diff --git a/qt/aqt/mediasrv.py b/qt/aqt/mediasrv.py
index 57271e163..ea3018a90 100644
--- a/qt/aqt/mediasrv.py
+++ b/qt/aqt/mediasrv.py
@@ -13,6 +13,7 @@ import time
 import traceback
 from dataclasses import dataclass
 from http import HTTPStatus
+from typing import Callable
 
 import flask
 import flask_cors  # type: ignore
@@ -21,15 +22,14 @@ from waitress.server import create_server
 
 import aqt
 from anki import hooks
-from anki.cards import CardId
-from anki.collection import GraphPreferences, OpChanges
-from anki.decks import UpdateDeckConfigs
-from anki.models import NotetypeNames
+from anki._vendor import stringcase
+from anki.collection import OpChanges
+from anki.decks import DeckConfigsForUpdate, UpdateDeckConfigs
 from anki.scheduler.v3 import NextStates
-from anki.utils import dev_mode, from_json_bytes
+from anki.utils import dev_mode
 from aqt.changenotetype import ChangeNotetypeDialog
 from aqt.deckoptions import DeckOptionsDialog
-from aqt.operations.deck import update_deck_configs
+from aqt.operations.deck import update_deck_configs as update_deck_configs_op
 from aqt.qt import *
 
 app = flask.Flask(__name__, root_path="/fake")
@@ -375,40 +375,20 @@ def _extract_request(
     return LocalFileRequest(root=aqt.mw.col.media.dir(), path=path)
 
 
-def graph_data() -> bytes:
-    args = from_json_bytes(request.data)
-    return aqt.mw.col.graph_data(search=args["search"], days=args["days"])
-
-
-def graph_preferences() -> bytes:
-    return aqt.mw.col.get_graph_preferences()
-
-
-def set_graph_preferences() -> None:
-    prefs = GraphPreferences()
-    prefs.ParseFromString(request.data)
-    aqt.mw.col.set_graph_preferences(prefs)
-
-
 def congrats_info() -> bytes:
     if not aqt.mw.col.sched._is_finished():
         aqt.mw.taskman.run_on_main(lambda: aqt.mw.moveToState("review"))
-    return aqt.mw.col.congrats_info()
+    return raw_backend_request("congrats_info")()
 
 
-def i18n_resources() -> bytes:
-    args = from_json_bytes(request.data)
-    return aqt.mw.col.i18n_resources(modules=args["modules"])
+def get_deck_configs_for_update() -> bytes:
+    config_bytes = aqt.mw.col._backend.get_deck_configs_for_update_raw(request.data)
+    configs = DeckConfigsForUpdate.FromString(config_bytes)
+    configs.have_addons = aqt.mw.addonManager.dirty
+    return configs.SerializeToString()
 
 
-def deck_configs_for_update() -> bytes:
-    args = from_json_bytes(request.data)
-    msg = aqt.mw.col.decks.get_deck_configs_for_update(deck_id=args["deckId"])
-    msg.have_addons = aqt.mw.addonManager.dirty
-    return msg.SerializeToString()
-
-
-def update_deck_configs_request() -> bytes:
+def update_deck_configs() -> bytes:
     # the regular change tracking machinery expects to be started on the main
     # thread and uses a callback on success, so we need to run this op on
     # main, and return immediately from the web request
@@ -421,7 +401,7 @@ def update_deck_configs_request() -> bytes:
             window.reject()
 
     def handle_on_main() -> None:
-        update_deck_configs(parent=aqt.mw, input=input).success(
+        update_deck_configs_op(parent=aqt.mw, input=input).success(
             on_success
         ).run_in_background()
 
@@ -444,18 +424,6 @@ def set_next_card_states() -> bytes:
     return b""
 
 
-def notetype_names() -> bytes:
-    msg = NotetypeNames(entries=aqt.mw.col.models.all_names_and_ids())
-    return msg.SerializeToString()
-
-
-def change_notetype_info() -> bytes:
-    args = from_json_bytes(request.data)
-    return aqt.mw.col.models.change_notetype_info(
-        old_notetype_id=args["oldNotetypeId"], new_notetype_id=args["newNotetypeId"]
-    )
-
-
 def change_notetype() -> bytes:
     data = request.data
 
@@ -468,31 +436,49 @@ def change_notetype() -> bytes:
     return b""
 
 
-def complete_tag() -> bytes:
-    return aqt.mw.col.tags.complete_tag(request.data)
+post_handler_list = [
+    congrats_info,
+    get_deck_configs_for_update,
+    update_deck_configs,
+    next_card_states,
+    set_next_card_states,
+    change_notetype,
+]
 
 
-def card_stats() -> bytes:
-    args = from_json_bytes(request.data)
-    return aqt.mw.col.card_stats_data(CardId(args["cardId"]))
+exposed_backend_list = [
+    # I18nService
+    "i18n_resources",
+    # NotesService
+    "get_note",
+    # NotetypesService
+    "get_notetype_names",
+    "get_change_notetype_info",
+    # StatsService
+    "card_stats",
+    "graphs",
+    "get_graph_preferences",
+    "set_graph_preferences",
+    # TagsService
+    "complete_tag",
+]
 
 
-# these require a collection
+def raw_backend_request(endpoint: str) -> Callable[[], bytes]:
+    # check for key at startup
+    from anki._backend import RustBackend
+
+    assert hasattr(RustBackend, f"{endpoint}_raw")
+
+    return lambda: getattr(aqt.mw.col._backend, f"{endpoint}_raw")(request.data)
+
+
+# all methods in here require a collection
 post_handlers = {
-    "graphData": graph_data,
-    "graphPreferences": graph_preferences,
-    "setGraphPreferences": set_graph_preferences,
-    "deckConfigsForUpdate": deck_configs_for_update,
-    "updateDeckConfigs": update_deck_configs_request,
-    "nextCardStates": next_card_states,
-    "setNextCardStates": set_next_card_states,
-    "changeNotetypeInfo": change_notetype_info,
-    "notetypeNames": notetype_names,
-    "changeNotetype": change_notetype,
-    "i18nResources": i18n_resources,
-    "congratsInfo": congrats_info,
-    "completeTag": complete_tag,
-    "cardStats": card_stats,
+    stringcase.camelcase(handler.__name__): handler for handler in post_handler_list
+} | {
+    stringcase.camelcase(handler): raw_backend_request(handler)
+    for handler in exposed_backend_list
 }
 
 
diff --git a/ts/card-info/CardInfo.svelte b/ts/card-info/CardInfo.svelte
index 2c9d05497..507bb8ee6 100644
--- a/ts/card-info/CardInfo.svelte
+++ b/ts/card-info/CardInfo.svelte
@@ -4,7 +4,7 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 -->
 <script lang="ts">
     import type { Stats } from "../lib/proto";
-    import { getCardStats } from "./lib";
+    import { stats as statsService } from "../lib/proto";
     import Container from "../components/Container.svelte";
     import Row from "../components/Row.svelte";
     import CardStats from "./CardStats.svelte";
@@ -19,7 +19,7 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
     async function updateStats(cardId: number): Promise<void> {
         const requestedCardId = cardId;
-        const cardStats = await getCardStats(requestedCardId);
+        const cardStats = await statsService.cardStats({ cid: requestedCardId });
 
         /* Skip if another update has been triggered in the meantime. */
         if (requestedCardId === cardId) {
diff --git a/ts/card-info/lib.ts b/ts/card-info/lib.ts
deleted file mode 100644
index 35a83c63f..000000000
--- a/ts/card-info/lib.ts
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright: Ankitects Pty Ltd and contributors
-// License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
-
-import { Stats } from "../lib/proto";
-import { postRequest } from "../lib/postrequest";
-
-export async function getCardStats(cardId: number): Promise<Stats.CardStatsResponse> {
-    return Stats.CardStatsResponse.decode(
-        await postRequest("/_anki/cardStats", JSON.stringify({ cardId })),
-    );
-}
diff --git a/ts/change-notetype/index.ts b/ts/change-notetype/index.ts
index e82c97492..86f61783d 100644
--- a/ts/change-notetype/index.ts
+++ b/ts/change-notetype/index.ts
@@ -1,39 +1,35 @@
 // Copyright: Ankitects Pty Ltd and contributors
 // License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
-/* eslint
-@typescript-eslint/no-explicit-any: "off",
- */
-
-import { ChangeNotetypeState, getChangeNotetypeInfo, getNotetypeNames } from "./lib";
 import { setupI18n, ModuleName } from "../lib/i18n";
+import { notetypes, empty } from "../lib/proto";
 import { checkNightMode } from "../lib/nightmode";
+import { ChangeNotetypeState } from "./lib";
 
 import ChangeNotetypePage from "./ChangeNotetypePage.svelte";
 import "./change-notetype-base.css";
 
+const notetypeNames = notetypes.getNotetypeNames(empty);
+const i18n = setupI18n({
+    modules: [ModuleName.ACTIONS, ModuleName.CHANGE_NOTETYPE, ModuleName.KEYBOARD],
+});
+
 export async function setupChangeNotetypePage(
     oldNotetypeId: number,
     newNotetypeId: number,
 ): Promise<ChangeNotetypePage> {
-    const [info, names] = await Promise.all([
-        getChangeNotetypeInfo(oldNotetypeId, newNotetypeId),
-        getNotetypeNames(),
-        setupI18n({
-            modules: [
-                ModuleName.ACTIONS,
-                ModuleName.CHANGE_NOTETYPE,
-                ModuleName.KEYBOARD,
-            ],
-        }),
-    ]);
+    const changeNotetypeInfo = notetypes.getChangeNotetypeInfo({
+        oldNotetypeId,
+        newNotetypeId,
+    });
+    const [names, info] = await Promise.all([notetypeNames, changeNotetypeInfo, i18n]);
 
     checkNightMode();
 
     const state = new ChangeNotetypeState(names, info);
     return new ChangeNotetypePage({
         target: document.body,
-        props: { state } as any,
+        props: { state },
     });
 }
 
diff --git a/ts/change-notetype/lib.ts b/ts/change-notetype/lib.ts
index 843827c9f..5a7fc1dbd 100644
--- a/ts/change-notetype/lib.ts
+++ b/ts/change-notetype/lib.ts
@@ -2,37 +2,10 @@
 // License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
 import * as tr from "../lib/ftl";
-import { Notetypes } from "../lib/proto";
-import { postRequest } from "../lib/postrequest";
+import { notetypes, Notetypes } from "../lib/proto";
 import { readable, Readable } from "svelte/store";
 import { isEqual } from "lodash-es";
 
-export async function getNotetypeNames(): Promise<Notetypes.NotetypeNames> {
-    return Notetypes.NotetypeNames.decode(
-        await postRequest("/_anki/notetypeNames", ""),
-    );
-}
-
-export async function getChangeNotetypeInfo(
-    oldNotetypeId: number,
-    newNotetypeId: number,
-): Promise<Notetypes.ChangeNotetypeInfo> {
-    return Notetypes.ChangeNotetypeInfo.decode(
-        await postRequest(
-            "/_anki/changeNotetypeInfo",
-            JSON.stringify({ oldNotetypeId, newNotetypeId }),
-        ),
-    );
-}
-
-export async function changeNotetype(
-    input: Notetypes.ChangeNotetypeRequest,
-): Promise<void> {
-    const data: Uint8Array = Notetypes.ChangeNotetypeRequest.encode(input).finish();
-    await postRequest("/_anki/changeNotetype", data);
-    return;
-}
-
 function nullToNegativeOne(list: (number | null)[]): number[] {
     return list.map((val) => val ?? -1);
 }
@@ -51,11 +24,11 @@ export class ChangeNotetypeInfoWrapper {
 
     constructor(info: Notetypes.ChangeNotetypeInfo) {
         this.info = info;
-        const templates = info.input!.newTemplates!;
+        const templates = info.input?.newTemplates ?? [];
         if (templates.length > 0) {
             this.templates = negativeOneToNull(templates);
         }
-        this.fields = negativeOneToNull(info.input!.newFields!);
+        this.fields = negativeOneToNull(info.input?.newFields ?? []);
         this.oldNotetypeName = info.oldNotetypeName;
     }
 
@@ -141,6 +114,7 @@ export enum MapContext {
     Field,
     Template,
 }
+
 export class ChangeNotetypeState {
     readonly info: Readable<ChangeNotetypeInfoWrapper>;
     readonly notetypes: Readable<NotetypeListEntry[]>;
@@ -168,10 +142,11 @@ export class ChangeNotetypeState {
     async setTargetNotetypeIndex(idx: number): Promise<void> {
         this.info_.input().newNotetypeId = this.notetypeNames.entries[idx].id!;
         this.notetypesSetter(this.buildNotetypeList());
-        const newInfo = await getChangeNotetypeInfo(
-            this.info_.input().oldNotetypeId,
-            this.info_.input().newNotetypeId,
-        );
+        const { oldNotetypeId, newNotetypeId } = this.info_.input();
+        const newInfo = await notetypes.getChangeNotetypeInfo({
+            oldNotetypeId,
+            newNotetypeId,
+        });
 
         this.info_ = new ChangeNotetypeInfoWrapper(newInfo);
         this.info_.unusedItems(MapContext.Field);
@@ -197,16 +172,16 @@ export class ChangeNotetypeState {
         this.infoSetter(this.info_);
     }
 
+    dataForSaving(): Notetypes.ChangeNotetypeRequest {
+        return this.info_.intoInput();
+    }
+
     async save(): Promise<void> {
         if (this.info_.unchanged()) {
             alert("No changes to save");
             return;
         }
-        await changeNotetype(this.dataForSaving());
-    }
-
-    dataForSaving(): Notetypes.ChangeNotetypeRequest {
-        return this.info_.intoInput();
+        await notetypes.changeNotetype(this.dataForSaving());
     }
 
     private buildNotetypeList(): NotetypeListEntry[] {
diff --git a/ts/congrats/index.ts b/ts/congrats/index.ts
index 7141665e6..fd1353e4e 100644
--- a/ts/congrats/index.ts
+++ b/ts/congrats/index.ts
@@ -1,7 +1,7 @@
 // Copyright: Ankitects Pty Ltd and contributors
 // License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
-import { getCongratsInfo } from "./lib";
+import { scheduler, empty } from "../lib/proto";
 import { setupI18n, ModuleName } from "../lib/i18n";
 import { checkNightMode } from "../lib/nightmode";
 
@@ -14,16 +14,15 @@ export async function setupCongrats(): Promise<CongratsPage> {
     checkNightMode();
     await i18n;
 
-    const info = await getCongratsInfo();
+    const info = await scheduler.congratsInfo(empty);
     const page = new CongratsPage({
         target: document.body,
         props: { info },
     });
 
-    setInterval(() => {
-        getCongratsInfo().then((info) => {
-            page.$set({ info });
-        });
+    setInterval(async () => {
+        const info = await scheduler.congratsInfo(empty);
+        page.$set({ info });
     }, 60000);
 
     return page;
diff --git a/ts/congrats/lib.ts b/ts/congrats/lib.ts
index 5a6e104ee..d7a72a50e 100644
--- a/ts/congrats/lib.ts
+++ b/ts/congrats/lib.ts
@@ -1,17 +1,10 @@
 // Copyright: Ankitects Pty Ltd and contributors
 // License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
-import { Scheduler } from "../lib/proto";
-import { postRequest } from "../lib/postrequest";
+import type { Scheduler } from "../lib/proto";
 import { naturalUnit, unitAmount, unitName } from "../lib/time";
 import * as tr from "../lib/ftl";
 
-export async function getCongratsInfo(): Promise<Scheduler.CongratsInfoResponse> {
-    return Scheduler.CongratsInfoResponse.decode(
-        await postRequest("/_anki/congratsInfo", ""),
-    );
-}
-
 export function buildNextLearnMsg(info: Scheduler.CongratsInfoResponse): string {
     const secsUntil = info.secsUntilNextLearn;
     // next learning card not due today?
diff --git a/ts/deck-options/index.ts b/ts/deck-options/index.ts
index 1d9955dad..d114b003b 100644
--- a/ts/deck-options/index.ts
+++ b/ts/deck-options/index.ts
@@ -7,8 +7,9 @@
 
 import "../sveltelib/export-runtime";
 
-import { getDeckOptionsInfo, DeckOptionsState } from "./lib";
+import { DeckOptionsState } from "./lib";
 import { setupI18n, ModuleName } from "../lib/i18n";
+import { deckConfig } from "../lib/proto";
 import { checkNightMode } from "../lib/nightmode";
 import { touchDeviceKey, modalsKey } from "../components/context-keys";
 
@@ -24,8 +25,11 @@ const i18n = setupI18n({
     ],
 });
 
-export async function setupDeckOptions(deckId: number): Promise<DeckOptionsPage> {
-    const [info] = await Promise.all([getDeckOptionsInfo(deckId), i18n]);
+export async function setupDeckOptions(did: number): Promise<DeckOptionsPage> {
+    const [info] = await Promise.all([
+        deckConfig.getDeckConfigsForUpdate({ did }),
+        i18n,
+    ]);
 
     checkNightMode();
 
@@ -33,7 +37,7 @@ export async function setupDeckOptions(deckId: number): Promise<DeckOptionsPage>
     context.set(modalsKey, new Map());
     context.set(touchDeviceKey, "ontouchstart" in document.documentElement);
 
-    const state = new DeckOptionsState(deckId, info);
+    const state = new DeckOptionsState(did, info);
     return new DeckOptionsPage({
         target: document.body,
         props: { state },
diff --git a/ts/deck-options/lib.test.ts b/ts/deck-options/lib.test.ts
index 61e16c101..0ff19e28a 100644
--- a/ts/deck-options/lib.test.ts
+++ b/ts/deck-options/lib.test.ts
@@ -244,8 +244,8 @@ test("saving", () => {
     expect(out.targetDeckId).toBe(123);
     // in no-changes case, currently selected config should
     // be returned
-    expect(out.configs.length).toBe(1);
-    expect(out.configs[0].name).toBe("another one");
+    expect(out.configs!.length).toBe(1);
+    expect(out.configs![0].name).toBe("another one");
     expect(out.applyToChildren).toBe(false);
 
     // rename, then change current deck
@@ -255,7 +255,7 @@ test("saving", () => {
 
     // renamed deck should be in changes, with current deck as last element
     out = state.dataForSaving(true);
-    expect(out.configs.map((c) => c.name)).toStrictEqual(["zzz", "Default"]);
+    expect(out.configs!.map((c) => c.name)).toStrictEqual(["zzz", "Default"]);
     expect(out.applyToChildren).toBe(true);
 
     // start again, adding new deck
@@ -275,7 +275,7 @@ test("saving", () => {
     // only contain Default, which is the new current deck
     out = state.dataForSaving(true);
     expect(out.removedConfigIds).toStrictEqual([1618570764780]);
-    expect(out.configs.map((c) => c.name)).toStrictEqual(["Default"]);
+    expect(out.configs!.map((c) => c.name)).toStrictEqual(["Default"]);
 });
 
 test("aux data", () => {
@@ -302,8 +302,8 @@ test("aux data", () => {
 
     // ensure changes serialize
     const out = state.dataForSaving(true);
-    expect(out.configs.length).toBe(2);
-    const json = out.configs.map(
+    expect(out.configs!.length).toBe(2);
+    const json = out.configs!.map(
         (c) =>
             JSON.parse(new TextDecoder().decode((c.config as any).other)) as Record<
                 string,
diff --git a/ts/deck-options/lib.ts b/ts/deck-options/lib.ts
index fd1e1a922..41d524080 100644
--- a/ts/deck-options/lib.ts
+++ b/ts/deck-options/lib.ts
@@ -1,29 +1,12 @@
 // Copyright: Ankitects Pty Ltd and contributors
 // License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
-import { DeckConfig } from "../lib/proto";
-import { postRequest } from "../lib/postrequest";
+import { DeckConfig, deckConfig } from "../lib/proto";
 import { Writable, writable, get, Readable, readable } from "svelte/store";
 import { isEqual, cloneDeep } from "lodash-es";
 import { localeCompare } from "../lib/i18n";
 import type { DynamicSvelteComponent } from "../sveltelib/dynamicComponent";
 
-export async function getDeckOptionsInfo(
-    deckId: number,
-): Promise<DeckConfig.DeckConfigsForUpdate> {
-    return DeckConfig.DeckConfigsForUpdate.decode(
-        await postRequest("/_anki/deckConfigsForUpdate", JSON.stringify({ deckId })),
-    );
-}
-
-export async function saveDeckOptions(
-    input: DeckConfig.UpdateDeckConfigsRequest,
-): Promise<void> {
-    const data: Uint8Array = DeckConfig.UpdateDeckConfigsRequest.encode(input).finish();
-    await postRequest("/_anki/updateDeckConfigs", data);
-    return;
-}
-
 export type DeckOptionsId = number;
 
 export interface ConfigWithCount {
@@ -185,7 +168,9 @@ export class DeckOptionsState {
         this.updateConfigList();
     }
 
-    dataForSaving(applyToChildren: boolean): DeckConfig.UpdateDeckConfigsRequest {
+    dataForSaving(
+        applyToChildren: boolean,
+    ): NonNullable<DeckConfig.IUpdateDeckConfigsRequest> {
         const modifiedConfigsExcludingCurrent = this.configs
             .map((c) => c.config)
             .filter((c, idx) => {
@@ -199,17 +184,17 @@ export class DeckOptionsState {
             // current must come last, even if unmodified
             this.configs[this.selectedIdx].config,
         ];
-        return DeckConfig.UpdateDeckConfigsRequest.create({
+        return {
             targetDeckId: this.targetDeckId,
             removedConfigIds: this.removedConfigs,
             configs,
             applyToChildren,
             cardStateCustomizer: get(this.cardStateCustomizer),
-        });
+        };
     }
 
     async save(applyToChildren: boolean): Promise<void> {
-        await saveDeckOptions(this.dataForSaving(applyToChildren));
+        await deckConfig.updateDeckConfigs(this.dataForSaving(applyToChildren));
     }
 
     private onCurrentConfigChanged(config: ConfigInner): void {
diff --git a/ts/editor/TagEditor.svelte b/ts/editor/TagEditor.svelte
index 7c2fedc11..872a4db80 100644
--- a/ts/editor/TagEditor.svelte
+++ b/ts/editor/TagEditor.svelte
@@ -19,8 +19,7 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
         replaceWithUnicodeSeparator,
         replaceWithColons,
     } from "./tags";
-    import { Tags } from "../lib/proto";
-    import { postRequest } from "../lib/postrequest";
+    import { tags as tagsService } from "../lib/proto";
     import { execCommand } from "./helpers";
 
     export let size: number;
@@ -56,14 +55,8 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
     let autocompleteDisabled: boolean = false;
 
     async function fetchSuggestions(input: string): Promise<string[]> {
-        const data = await postRequest(
-            "/_anki/completeTag",
-            Tags.CompleteTagRequest.encode(
-                Tags.CompleteTagRequest.create({ input, matchLimit: 500 }),
-            ).finish(),
-        );
-        const response = Tags.CompleteTagResponse.decode(data);
-        return response.tags;
+        const { tags } = await tagsService.completeTag({ input, matchLimit: 500 });
+        return tags;
     }
 
     const withoutSingleColonAtStartOrEnd = /^:?([^:].*?[^:]):?$/;
diff --git a/ts/graphs/WithGraphData.svelte b/ts/graphs/WithGraphData.svelte
index 71d9c91ad..541ff0999 100644
--- a/ts/graphs/WithGraphData.svelte
+++ b/ts/graphs/WithGraphData.svelte
@@ -4,49 +4,25 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 -->
 <script lang="ts">
     import type { Writable } from "svelte/store";
-    import type { PreferenceRaw, PreferencePayload } from "../sveltelib/preferences";
-
     import { Stats } from "../lib/proto";
-    import { postRequest } from "../lib/postrequest";
-
+    import { stats, empty } from "../lib/proto";
+    import type { PreferenceRaw } from "../sveltelib/preferences";
     import useAsync from "../sveltelib/async";
     import useAsyncReactive from "../sveltelib/asyncReactive";
     import { getPreferences } from "../sveltelib/preferences";
-
     import { daysToRevlogRange } from "./graph-helpers";
 
     export let search: Writable<string>;
     export let days: Writable<number>;
 
-    async function getGraphData(
-        search: string,
-        days: number,
-    ): Promise<Stats.GraphsResponse> {
-        return Stats.GraphsResponse.decode(
-            await postRequest("/_anki/graphData", JSON.stringify({ search, days })),
-        );
-    }
-
-    async function getGraphPreferences(): Promise<Stats.GraphPreferences> {
-        return Stats.GraphPreferences.decode(
-            await postRequest("/_anki/graphPreferences", JSON.stringify({})),
-        );
-    }
-
-    async function setGraphPreferences(
-        prefs: PreferencePayload<Stats.GraphPreferences>,
-    ): Promise<void> {
-        await postRequest(
-            "/_anki/setGraphPreferences",
-            Stats.GraphPreferences.encode(prefs).finish(),
-        );
-    }
-
     const {
         loading: graphLoading,
         error: graphError,
         value: graphValue,
-    } = useAsyncReactive(() => getGraphData($search, $days), [search, days]);
+    } = useAsyncReactive(
+        () => stats.graphs({ search: $search, days: $days }),
+        [search, days],
+    );
 
     const {
         loading: prefsLoading,
@@ -54,8 +30,10 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
         value: prefsValue,
     } = useAsync(() =>
         getPreferences(
-            getGraphPreferences,
-            setGraphPreferences,
+            () => stats.getGraphPreferences(empty),
+            async (input: Stats.IGraphPreferences): Promise<void> => {
+                stats.setGraphPreferences(input);
+            },
             Stats.GraphPreferences.toObject.bind(Stats.GraphPreferences) as (
                 preferences: Stats.GraphPreferences,
                 options: { defaults: boolean },
diff --git a/ts/lib/i18n/utils.ts b/ts/lib/i18n/utils.ts
index 2026af89f..5a5365e70 100644
--- a/ts/lib/i18n/utils.ts
+++ b/ts/lib/i18n/utils.ts
@@ -6,6 +6,7 @@ import { FluentBundle, FluentResource } from "@fluent/bundle";
 
 import { firstLanguage, setBundles } from "./bundles";
 import type { ModuleName } from "./modules";
+import { i18n } from "../proto";
 
 export function supportsVerticalText(): boolean {
     const firstLang = firstLanguage();
@@ -73,19 +74,13 @@ export function withoutUnicodeIsolation(s: string): string {
 }
 
 export async function setupI18n(args: { modules: ModuleName[] }): Promise<void> {
-    const resp = await fetch("/_anki/i18nResources", {
-        method: "POST",
-        body: JSON.stringify(args),
-    });
-    if (!resp.ok) {
-        throw Error(`unexpected reply: ${resp.statusText}`);
-    }
-    const json = await resp.json();
+    const resources = await i18n.i18nResources(args);
+    const json = JSON.parse(String.fromCharCode(...resources.json));
 
     const newBundles: FluentBundle[] = [];
-    for (const i in json.resources) {
-        const text = json.resources[i];
-        const lang = json.langs[i];
+    for (const res in json.resources) {
+        const text = json.resources[res];
+        const lang = json.langs[res];
         const bundle = new FluentBundle([lang, "en-US"]);
         const resource = new FluentResource(text);
         bundle.addResource(resource);
diff --git a/ts/lib/proto.ts b/ts/lib/proto.ts
index 941359ddf..aa179dd3d 100644
--- a/ts/lib/proto.ts
+++ b/ts/lib/proto.ts
@@ -1,17 +1,77 @@
 // Copyright: Ankitects Pty Ltd and contributors
 // License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
+/* eslint
+@typescript-eslint/no-explicit-any: "off",
+ */
+
 import { anki } from "./backend_proto";
+import type { RPCImpl, RPCImplCallback, Message, rpc } from "protobufjs";
 
 import Cards = anki.cards;
+import Collection = anki.collection;
 import DeckConfig = anki.deckconfig;
+import Decks = anki.decks;
 import Generic = anki.generic;
+import I18n = anki.i18n;
+import Notes = anki.notes;
 import Notetypes = anki.notetypes;
 import Scheduler = anki.scheduler;
 import Stats = anki.stats;
 import Tags = anki.tags;
 
-export { Stats, Cards, DeckConfig, Notetypes, Scheduler, Tags };
+export { Cards, Collection, Decks, Generic, Notes };
+
+export const empty = Generic.Empty.encode(Generic.Empty.create()).finish();
+
+async function serviceCallback(
+    method: rpc.ServiceMethod<Message<any>, Message<any>>,
+    requestData: Uint8Array,
+    callback: RPCImplCallback,
+): Promise<void> {
+    const headers = new Headers();
+    headers.set("Content-type", "application/octet-stream");
+
+    const methodName = method.name[0].toLowerCase() + method.name.substring(1);
+    const path = `/_anki/${methodName}`;
+
+    try {
+        const result = await fetch(path, {
+            method: "POST",
+            headers,
+            body: requestData,
+        });
+
+        const blob = await result.blob();
+        const arrayBuffer = await blob.arrayBuffer();
+        const uint8Array = new Uint8Array(arrayBuffer);
+
+        callback(null, uint8Array);
+    } catch (error) {
+        console.log("error caught");
+        callback(error as Error, null);
+    }
+}
+
+export { DeckConfig };
+export const deckConfig = DeckConfig.DeckConfigService.create(
+    serviceCallback as RPCImpl,
+);
+
+export { I18n };
+export const i18n = I18n.I18nService.create(serviceCallback as RPCImpl);
+
+export { Notetypes };
+export const notetypes = Notetypes.NotetypesService.create(serviceCallback as RPCImpl);
+
+export { Scheduler };
+export const scheduler = Scheduler.SchedulerService.create(serviceCallback as RPCImpl);
+
+export { Stats };
+export const stats = Stats.StatsService.create(serviceCallback as RPCImpl);
+
+export { Tags };
+export const tags = Tags.TagsService.create(serviceCallback as RPCImpl);
 
 export function unwrapOptionalNumber(
     msg: Generic.IInt64 | Generic.IUInt32 | Generic.IInt32 | null | undefined,