diff --git a/packages/client/package.json b/packages/client/package.json
index 6e514f83e..6d1b401c4 100644
--- a/packages/client/package.json
+++ b/packages/client/package.json
@@ -43,7 +43,6 @@
 		"katex": "0.16.0",
 		"matter-js": "0.18.0",
 		"mfm-js": "0.22.1",
-		"misskey-js": "0.0.14",
 		"mocha": "10.0.0",
 		"ms": "2.1.3",
 		"nested-property": "4.0.0",
diff --git a/packages/client/src/account.ts b/packages/client/src/account.ts
index eb2ba0a1e..33acf73a9 100644
--- a/packages/client/src/account.ts
+++ b/packages/client/src/account.ts
@@ -1,5 +1,5 @@
 import { defineAsyncComponent, reactive } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import { showSuspendedDialog } from './scripts/show-suspended-dialog';
 import { i18n } from './i18n';
 import { del, get, set } from '@/scripts/idb-proxy';
diff --git a/packages/client/src/components/MkNoteSub.vue b/packages/client/src/components/MkNoteSub.vue
index c8f8e3090..c60f385e7 100644
--- a/packages/client/src/components/MkNoteSub.vue
+++ b/packages/client/src/components/MkNoteSub.vue
@@ -27,7 +27,7 @@
 </template>
 
 <script lang="ts" setup>
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import XNoteHeader from './note-header.vue';
 import MkNoteSubNoteContent from './sub-note-content.vue';
 import XCwButton from './cw-button.vue';
diff --git a/packages/client/src/components/abuse-report-window.vue b/packages/client/src/components/abuse-report-window.vue
index 6a94665b5..42c635c75 100644
--- a/packages/client/src/components/abuse-report-window.vue
+++ b/packages/client/src/components/abuse-report-window.vue
@@ -24,7 +24,7 @@
 
 <script setup lang="ts">
 import { ref } from 'vue';
-import * as Misskey from 'misskey-js';
+import * as Misskey from 'foundkey-js';
 import XWindow from '@/components/ui/window.vue';
 import MkTextarea from '@/components/form/textarea.vue';
 import MkButton from '@/components/ui/button.vue';
diff --git a/packages/client/src/components/cropper-dialog.vue b/packages/client/src/components/cropper-dialog.vue
index 4b241436d..74f753a85 100644
--- a/packages/client/src/components/cropper-dialog.vue
+++ b/packages/client/src/components/cropper-dialog.vue
@@ -27,7 +27,7 @@
 
 <script lang="ts" setup>
 import { onMounted } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import Cropper from 'cropperjs';
 import tinycolor from 'tinycolor2';
 import XModalWindow from '@/components/ui/modal-window.vue';
diff --git a/packages/client/src/components/cw-button.vue b/packages/client/src/components/cw-button.vue
index 9c5ccd436..7810d2e92 100644
--- a/packages/client/src/components/cw-button.vue
+++ b/packages/client/src/components/cw-button.vue
@@ -8,7 +8,7 @@
 <script lang="ts" setup>
 import { computed } from 'vue';
 import { length } from 'stringz';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import { concat } from '@/scripts/array';
 import { i18n } from '@/i18n';
 
diff --git a/packages/client/src/components/drive-file-thumbnail.vue b/packages/client/src/components/drive-file-thumbnail.vue
index b346585ce..81dc7a6c5 100644
--- a/packages/client/src/components/drive-file-thumbnail.vue
+++ b/packages/client/src/components/drive-file-thumbnail.vue
@@ -16,7 +16,7 @@
 
 <script lang="ts" setup>
 import { computed } from 'vue';
-import * as Misskey from 'misskey-js';
+import * as Misskey from 'foundkey-js';
 import ImgWithBlurhash from '@/components/img-with-blurhash.vue';
 
 const props = defineProps<{
diff --git a/packages/client/src/components/drive-select-dialog.vue b/packages/client/src/components/drive-select-dialog.vue
index 5001a7b46..ecc3e75d9 100644
--- a/packages/client/src/components/drive-select-dialog.vue
+++ b/packages/client/src/components/drive-select-dialog.vue
@@ -20,7 +20,7 @@
 
 <script lang="ts" setup>
 import { ref } from 'vue';
-import * as Misskey from 'misskey-js';
+import * as Misskey from 'foundkey-js';
 import XDrive from './drive.vue';
 import XModalWindow from '@/components/ui/modal-window.vue';
 import number from '@/filters/number';
diff --git a/packages/client/src/components/drive-window.vue b/packages/client/src/components/drive-window.vue
index c35499056..d14337d66 100644
--- a/packages/client/src/components/drive-window.vue
+++ b/packages/client/src/components/drive-window.vue
@@ -14,7 +14,7 @@
 </template>
 
 <script lang="ts" setup>
-import * as Misskey from 'misskey-js';
+import * as Misskey from 'foundkey-js';
 import XDrive from './drive.vue';
 import XWindow from '@/components/ui/window.vue';
 import { i18n } from '@/i18n';
diff --git a/packages/client/src/components/drive.file.vue b/packages/client/src/components/drive.file.vue
index 4f4d3f33f..1d94b6782 100644
--- a/packages/client/src/components/drive.file.vue
+++ b/packages/client/src/components/drive.file.vue
@@ -33,7 +33,7 @@
 
 <script lang="ts" setup>
 import { computed, defineAsyncComponent, ref } from 'vue';
-import * as Misskey from 'misskey-js';
+import * as Misskey from 'foundkey-js';
 import MkDriveFileThumbnail from './drive-file-thumbnail.vue';
 import copyToClipboard from '@/scripts/copy-to-clipboard';
 import bytes from '@/filters/bytes';
diff --git a/packages/client/src/components/drive.folder.vue b/packages/client/src/components/drive.folder.vue
index 7019162dd..97dd7e9d0 100644
--- a/packages/client/src/components/drive.folder.vue
+++ b/packages/client/src/components/drive.folder.vue
@@ -29,7 +29,7 @@
 
 <script lang="ts" setup>
 import { computed, defineAsyncComponent, ref } from 'vue';
-import * as Misskey from 'misskey-js';
+import * as Misskey from 'foundkey-js';
 import * as os from '@/os';
 import { i18n } from '@/i18n';
 import { defaultStore } from '@/store';
diff --git a/packages/client/src/components/drive.nav-folder.vue b/packages/client/src/components/drive.nav-folder.vue
index a9878baa4..6b07e03b7 100644
--- a/packages/client/src/components/drive.nav-folder.vue
+++ b/packages/client/src/components/drive.nav-folder.vue
@@ -15,7 +15,7 @@
 
 <script lang="ts" setup>
 import { ref } from 'vue';
-import * as Misskey from 'misskey-js';
+import * as Misskey from 'foundkey-js';
 import * as os from '@/os';
 import { i18n } from '@/i18n';
 
diff --git a/packages/client/src/components/drive.vue b/packages/client/src/components/drive.vue
index e02087a2f..f95c6638a 100644
--- a/packages/client/src/components/drive.vue
+++ b/packages/client/src/components/drive.vue
@@ -89,7 +89,7 @@
 
 <script lang="ts" setup>
 import { nextTick, onActivated, onBeforeUnmount, onMounted, ref, watch } from 'vue';
-import * as Misskey from 'misskey-js';
+import * as Misskey from 'foundkey-js';
 import XNavFolder from './drive.nav-folder.vue';
 import XFolder from './drive.folder.vue';
 import XFile from './drive.file.vue';
diff --git a/packages/client/src/components/emoji-picker.vue b/packages/client/src/components/emoji-picker.vue
index 92669d287..b78543439 100644
--- a/packages/client/src/components/emoji-picker.vue
+++ b/packages/client/src/components/emoji-picker.vue
@@ -79,7 +79,7 @@
 
 <script lang="ts" setup>
 import { ref, computed, watch, onMounted } from 'vue';
-import * as Misskey from 'misskey-js';
+import * as Misskey from 'foundkey-js';
 import XSection from './emoji-picker.section.vue';
 import { emojilist, UnicodeEmojiDef, unicodeEmojiCategories as categories } from '@/scripts/emojilist';
 import { getStaticImageUrl } from '@/scripts/get-static-image-url';
diff --git a/packages/client/src/components/featured-photos.vue b/packages/client/src/components/featured-photos.vue
index e58b5d284..aef0bbe60 100644
--- a/packages/client/src/components/featured-photos.vue
+++ b/packages/client/src/components/featured-photos.vue
@@ -4,7 +4,7 @@
 
 <script lang="ts" setup>
 import { ref } from 'vue';
-import * as Misskey from 'misskey-js';
+import * as Misskey from 'foundkey-js';
 import * as os from '@/os';
 
 const meta = ref<Misskey.entities.DetailedInstanceMetadata>();
diff --git a/packages/client/src/components/file-list-for-admin.vue b/packages/client/src/components/file-list-for-admin.vue
index 59744870d..7fe976ad7 100644
--- a/packages/client/src/components/file-list-for-admin.vue
+++ b/packages/client/src/components/file-list-for-admin.vue
@@ -31,7 +31,7 @@
 </template>
 
 <script lang="ts" setup>
-import * as Acct from 'misskey-js/built/acct';
+import * as Acct from 'foundkey-js/built/acct';
 import MkPagination from '@/components/ui/pagination.vue';
 import MkDriveFileThumbnail from '@/components/drive-file-thumbnail.vue';
 import bytes from '@/filters/bytes';
diff --git a/packages/client/src/components/follow-button.vue b/packages/client/src/components/follow-button.vue
index bc69cda17..2a42d87b1 100644
--- a/packages/client/src/components/follow-button.vue
+++ b/packages/client/src/components/follow-button.vue
@@ -31,7 +31,7 @@
 
 <script lang="ts" setup>
 import { onBeforeUnmount, onMounted } from 'vue';
-import * as Misskey from 'misskey-js';
+import * as Misskey from 'foundkey-js';
 import * as os from '@/os';
 import { stream } from '@/stream';
 import { i18n } from '@/i18n';
diff --git a/packages/client/src/components/global/acct.vue b/packages/client/src/components/global/acct.vue
index c35da458b..5ff543390 100644
--- a/packages/client/src/components/global/acct.vue
+++ b/packages/client/src/components/global/acct.vue
@@ -6,7 +6,7 @@
 </template>
 
 <script lang="ts" setup>
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import { toUnicode } from 'punycode/';
 import { host as hostRaw } from '@/config';
 import { defaultStore } from '@/store';
diff --git a/packages/client/src/components/global/avatar.vue b/packages/client/src/components/global/avatar.vue
index 2e6155659..7dcf61f8c 100644
--- a/packages/client/src/components/global/avatar.vue
+++ b/packages/client/src/components/global/avatar.vue
@@ -11,7 +11,7 @@
 
 <script lang="ts" setup>
 import { watch } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import { getStaticImageUrl } from '@/scripts/get-static-image-url';
 import { extractAvgColorFromBlurhash } from '@/scripts/extract-avg-color-from-blurhash';
 import { acct, userPage } from '@/filters/user';
diff --git a/packages/client/src/components/global/emoji.vue b/packages/client/src/components/global/emoji.vue
index 0a6e8ddfe..be43e3476 100644
--- a/packages/client/src/components/global/emoji.vue
+++ b/packages/client/src/components/global/emoji.vue
@@ -7,7 +7,7 @@
 
 <script lang="ts" setup>
 import { computed } from 'vue';
-import { CustomEmoji } from 'misskey-js/built/entities';
+import { CustomEmoji } from 'foundkey-js/built/entities';
 import { getStaticImageUrl } from '@/scripts/get-static-image-url';
 import { char2filePath } from '@/scripts/twemoji-base';
 import { defaultStore } from '@/store';
diff --git a/packages/client/src/components/global/user-name.vue b/packages/client/src/components/global/user-name.vue
index b34e91403..efb8c025b 100644
--- a/packages/client/src/components/global/user-name.vue
+++ b/packages/client/src/components/global/user-name.vue
@@ -3,7 +3,7 @@
 </template>
 
 <script lang="ts" setup>
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 
 withDefaults(defineProps<{
 	user: misskey.entities.User;
diff --git a/packages/client/src/components/instance-card-mini.vue b/packages/client/src/components/instance-card-mini.vue
index 88621e72c..a1f181ba1 100644
--- a/packages/client/src/components/instance-card-mini.vue
+++ b/packages/client/src/components/instance-card-mini.vue
@@ -10,7 +10,7 @@
 </template>
 
 <script lang="ts" setup>
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import MkMiniChart from '@/components/mini-chart.vue';
 import * as os from '@/os';
 
diff --git a/packages/client/src/components/media-banner.vue b/packages/client/src/components/media-banner.vue
index 872b7888d..28377abff 100644
--- a/packages/client/src/components/media-banner.vue
+++ b/packages/client/src/components/media-banner.vue
@@ -30,7 +30,7 @@
 
 <script lang="ts" setup>
 import { onMounted } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import { ColdDeviceStorage } from '@/store';
 import { i18n } from '@/i18n';
 
diff --git a/packages/client/src/components/media-caption.vue b/packages/client/src/components/media-caption.vue
index deea5207e..5b3628f64 100644
--- a/packages/client/src/components/media-caption.vue
+++ b/packages/client/src/components/media-caption.vue
@@ -30,7 +30,7 @@
 <script lang="ts" setup>
 import { onBeforeUnmount, onMounted, computed } from 'vue';
 import { length } from 'stringz';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import MkModal from '@/components/ui/modal.vue';
 import MkButton from '@/components/ui/button.vue';
 import bytes from '@/filters/bytes';
diff --git a/packages/client/src/components/media-image.vue b/packages/client/src/components/media-image.vue
index eeff06672..a6ad95152 100644
--- a/packages/client/src/components/media-image.vue
+++ b/packages/client/src/components/media-image.vue
@@ -22,7 +22,7 @@
 
 <script lang="ts" setup>
 import { watch } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import { getStaticImageUrl } from '@/scripts/get-static-image-url';
 import ImgWithBlurhash from '@/components/img-with-blurhash.vue';
 import { defaultStore } from '@/store';
diff --git a/packages/client/src/components/media-list.vue b/packages/client/src/components/media-list.vue
index 8e14bc374..dc7e172c3 100644
--- a/packages/client/src/components/media-list.vue
+++ b/packages/client/src/components/media-list.vue
@@ -14,7 +14,7 @@
 
 <script lang="ts" setup>
 import { onMounted, ref } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import PhotoSwipeLightbox from 'photoswipe/lightbox';
 import PhotoSwipe from 'photoswipe';
 import 'photoswipe/style.css';
diff --git a/packages/client/src/components/media-video.vue b/packages/client/src/components/media-video.vue
index 68fa015e9..9e30e507d 100644
--- a/packages/client/src/components/media-video.vue
+++ b/packages/client/src/components/media-video.vue
@@ -25,7 +25,7 @@
 
 <script lang="ts" setup>
 import { ref } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import { defaultStore } from '@/store';
 import { i18n } from '@/i18n';
 
diff --git a/packages/client/src/components/note-detailed.vue b/packages/client/src/components/note-detailed.vue
index 1708295ad..3533406d9 100644
--- a/packages/client/src/components/note-detailed.vue
+++ b/packages/client/src/components/note-detailed.vue
@@ -115,7 +115,7 @@
 <script lang="ts" setup>
 import { inject, onMounted, ref } from 'vue';
 import * as mfm from 'mfm-js';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import MkNoteSub from './MkNoteSub.vue';
 import XNoteSimple from './note-simple.vue';
 import XReactionsViewer from './reactions-viewer.vue';
diff --git a/packages/client/src/components/note-header.vue b/packages/client/src/components/note-header.vue
index 7d472913d..50a1538d4 100644
--- a/packages/client/src/components/note-header.vue
+++ b/packages/client/src/components/note-header.vue
@@ -15,7 +15,7 @@
 </template>
 
 <script lang="ts" setup>
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import MkVisibility from '@/components/visibility.vue';
 import { notePage } from '@/filters/note';
 import { userPage } from '@/filters/user';
diff --git a/packages/client/src/components/note-simple.vue b/packages/client/src/components/note-simple.vue
index dbc7b6e89..0b3cea743 100644
--- a/packages/client/src/components/note-simple.vue
+++ b/packages/client/src/components/note-simple.vue
@@ -17,7 +17,7 @@
 </template>
 
 <script lang="ts" setup>
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import XNoteHeader from './note-header.vue';
 import MkNoteSubNoteContent from './sub-note-content.vue';
 import XCwButton from './cw-button.vue';
diff --git a/packages/client/src/components/note.vue b/packages/client/src/components/note.vue
index a50a5f440..5551a8c5a 100644
--- a/packages/client/src/components/note.vue
+++ b/packages/client/src/components/note.vue
@@ -103,7 +103,7 @@
 <script lang="ts" setup>
 import { inject, onMounted, ref, Ref } from 'vue';
 import * as mfm from 'mfm-js';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import MkNoteSub from './MkNoteSub.vue';
 import XNoteHeader from './note-header.vue';
 import XNoteSimple from './note-simple.vue';
diff --git a/packages/client/src/components/notification-setting-window.vue b/packages/client/src/components/notification-setting-window.vue
index adcdb7923..c7fdc56ab 100644
--- a/packages/client/src/components/notification-setting-window.vue
+++ b/packages/client/src/components/notification-setting-window.vue
@@ -28,7 +28,7 @@
 </template>
 
 <script lang="ts" setup>
-import { notificationTypes } from 'misskey-js';
+import { notificationTypes } from 'foundkey-js';
 import MkSwitch from './form/switch.vue';
 import MkInfo from './ui/info.vue';
 import MkButton from './ui/button.vue';
diff --git a/packages/client/src/components/notification.vue b/packages/client/src/components/notification.vue
index c8b2da54f..de1cf3a5b 100644
--- a/packages/client/src/components/notification.vue
+++ b/packages/client/src/components/notification.vue
@@ -76,7 +76,7 @@
 
 <script lang="ts" setup>
 import { ref, onMounted, onUnmounted, watch } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import MkFollowButton from './follow-button.vue';
 import XReactionTooltip from './reaction-tooltip.vue';
 import { getNoteSummary } from '@/scripts/get-note-summary';
diff --git a/packages/client/src/components/notifications.vue b/packages/client/src/components/notifications.vue
index afa9433a6..24708ec47 100644
--- a/packages/client/src/components/notifications.vue
+++ b/packages/client/src/components/notifications.vue
@@ -18,7 +18,7 @@
 
 <script lang="ts" setup>
 import { onUnmounted, onMounted, computed, ref } from 'vue';
-import { notificationTypes } from 'misskey-js';
+import { notificationTypes } from 'foundkey-js';
 import MkPagination, { Paging } from '@/components/ui/pagination.vue';
 import XNotification from '@/components/notification.vue';
 import XList from '@/components/date-separated-list.vue';
diff --git a/packages/client/src/components/poll.vue b/packages/client/src/components/poll.vue
index 1ac68c059..5c1321679 100644
--- a/packages/client/src/components/poll.vue
+++ b/packages/client/src/components/poll.vue
@@ -23,7 +23,7 @@
 
 <script lang="ts" setup>
 import { computed, ref } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import { sum } from '@/scripts/array';
 import { pleaseLogin } from '@/scripts/please-login';
 import * as os from '@/os';
diff --git a/packages/client/src/components/post-form-attaches.vue b/packages/client/src/components/post-form-attaches.vue
index bf03e05b0..77051cdae 100644
--- a/packages/client/src/components/post-form-attaches.vue
+++ b/packages/client/src/components/post-form-attaches.vue
@@ -16,7 +16,7 @@
 
 <script lang="ts" setup>
 import { defineAsyncComponent, computed } from 'vue';
-import { DriveFile } from 'misskey-js/built/entities';
+import { DriveFile } from 'foundkey-js/built/entities';
 import MkDriveFileThumbnail from './drive-file-thumbnail.vue';
 import * as os from '@/os';
 import { i18n } from '@/i18n';
diff --git a/packages/client/src/components/post-form.vue b/packages/client/src/components/post-form.vue
index e7f470236..843b10713 100644
--- a/packages/client/src/components/post-form.vue
+++ b/packages/client/src/components/post-form.vue
@@ -63,11 +63,11 @@
 <script lang="ts" setup>
 import { inject, watch, nextTick, onMounted, defineAsyncComponent } from 'vue';
 import * as mfm from 'mfm-js';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import insertTextAtCursor from 'insert-text-at-cursor';
 import { length } from 'stringz';
 import { toASCII } from 'punycode/';
-import * as Acct from 'misskey-js/built/acct';
+import * as Acct from 'foundkey-js/built/acct';
 import { throttle } from 'throttle-debounce';
 import XNoteSimple from './note-simple.vue';
 import XNotePreview from './note-preview.vue';
diff --git a/packages/client/src/components/reactions-viewer.reaction.vue b/packages/client/src/components/reactions-viewer.reaction.vue
index 6e479855b..8572bc091 100644
--- a/packages/client/src/components/reactions-viewer.reaction.vue
+++ b/packages/client/src/components/reactions-viewer.reaction.vue
@@ -14,7 +14,7 @@
 
 <script lang="ts" setup>
 import { computed, onMounted, ref, watch } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import XDetails from '@/components/reactions-viewer.details.vue';
 import * as os from '@/os';
 import { useTooltip } from '@/scripts/use-tooltip';
diff --git a/packages/client/src/components/reactions-viewer.vue b/packages/client/src/components/reactions-viewer.vue
index a03989993..b2a231c3e 100644
--- a/packages/client/src/components/reactions-viewer.vue
+++ b/packages/client/src/components/reactions-viewer.vue
@@ -6,7 +6,7 @@
 
 <script lang="ts" setup>
 import { computed } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import XReaction from './reactions-viewer.reaction.vue';
 import { $i } from '@/account';
 
diff --git a/packages/client/src/components/renote-button.vue b/packages/client/src/components/renote-button.vue
index 495bba0d1..d8248f20a 100644
--- a/packages/client/src/components/renote-button.vue
+++ b/packages/client/src/components/renote-button.vue
@@ -15,7 +15,7 @@
 
 <script lang="ts" setup>
 import { computed, ref } from 'vue';
-import { Note } from 'misskey-js/built/entities';
+import { Note } from 'foundkey-js/built/entities';
 import XDetails from '@/components/users-tooltip.vue';
 import { pleaseLogin } from '@/scripts/please-login';
 import * as os from '@/os';
diff --git a/packages/client/src/components/sub-note-content.vue b/packages/client/src/components/sub-note-content.vue
index 0c97b8075..3e009d47b 100644
--- a/packages/client/src/components/sub-note-content.vue
+++ b/packages/client/src/components/sub-note-content.vue
@@ -24,7 +24,7 @@
 </template>
 
 <script lang="ts" setup>
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import XPoll from './poll.vue';
 import XMediaList from './media-list.vue';
 import { i18n } from '@/i18n';
diff --git a/packages/client/src/components/token-generate-window.vue b/packages/client/src/components/token-generate-window.vue
index eb2de4be3..6079f77e1 100644
--- a/packages/client/src/components/token-generate-window.vue
+++ b/packages/client/src/components/token-generate-window.vue
@@ -30,7 +30,7 @@
 
 <script lang="ts">
 import { defineComponent } from 'vue';
-import { permissions } from 'misskey-js';
+import { permissions } from 'foundkey-js';
 import MkInput from './form/input.vue';
 import MkTextarea from './form/textarea.vue';
 import MkSwitch from './form/switch.vue';
diff --git a/packages/client/src/components/ui/pagination.vue b/packages/client/src/components/ui/pagination.vue
index cabb51918..fa7c22887 100644
--- a/packages/client/src/components/ui/pagination.vue
+++ b/packages/client/src/components/ui/pagination.vue
@@ -33,7 +33,7 @@
 
 <script lang="ts" setup>
 import { computed, ComputedRef, isRef, onActivated, onDeactivated, ref, watch } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import * as os from '@/os';
 import { onScrollTop, isTopVisible, getScrollPosition, getScrollContainer } from '@/scripts/scroll';
 import MkButton from '@/components/ui/button.vue';
diff --git a/packages/client/src/components/user-card-mini.vue b/packages/client/src/components/user-card-mini.vue
index 732adf7f5..1e58389ad 100644
--- a/packages/client/src/components/user-card-mini.vue
+++ b/packages/client/src/components/user-card-mini.vue
@@ -10,7 +10,7 @@
 </template>
 
 <script lang="ts" setup>
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import MkMiniChart from '@/components/mini-chart.vue';
 import * as os from '@/os';
 import { acct } from '@/filters/user';
diff --git a/packages/client/src/components/user-info.vue b/packages/client/src/components/user-info.vue
index 1cd275a6d..93b9c51b7 100644
--- a/packages/client/src/components/user-info.vue
+++ b/packages/client/src/components/user-info.vue
@@ -28,7 +28,7 @@
 </template>
 
 <script lang="ts" setup>
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import MkFollowButton from './follow-button.vue';
 import { userPage } from '@/filters/user';
 import { i18n } from '@/i18n';
diff --git a/packages/client/src/components/user-online-indicator.vue b/packages/client/src/components/user-online-indicator.vue
index f670a3cad..58a27b8a3 100644
--- a/packages/client/src/components/user-online-indicator.vue
+++ b/packages/client/src/components/user-online-indicator.vue
@@ -3,7 +3,7 @@
 </template>
 
 <script lang="ts" setup>
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import { i18n } from '@/i18n';
 
 const props = defineProps<{
diff --git a/packages/client/src/components/user-preview.vue b/packages/client/src/components/user-preview.vue
index 73fae019e..461d3051c 100644
--- a/packages/client/src/components/user-preview.vue
+++ b/packages/client/src/components/user-preview.vue
@@ -33,7 +33,7 @@
 
 <script lang="ts">
 import { defineComponent } from 'vue';
-import * as Acct from 'misskey-js/built/acct';
+import * as Acct from 'foundkey-js/built/acct';
 import MkFollowButton from './follow-button.vue';
 import { userPage } from '@/filters/user';
 import * as os from '@/os';
diff --git a/packages/client/src/components/user-select-dialog.vue b/packages/client/src/components/user-select-dialog.vue
index 696205232..d102e12da 100644
--- a/packages/client/src/components/user-select-dialog.vue
+++ b/packages/client/src/components/user-select-dialog.vue
@@ -53,7 +53,7 @@
 
 <script lang="ts" setup>
 import { onMounted } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import MkInput from '@/components/form/input.vue';
 import FormSplit from '@/components/form/split.vue';
 import XModalWindow from '@/components/ui/modal-window.vue';
diff --git a/packages/client/src/components/visibility-picker.vue b/packages/client/src/components/visibility-picker.vue
index 544406021..bfe815516 100644
--- a/packages/client/src/components/visibility-picker.vue
+++ b/packages/client/src/components/visibility-picker.vue
@@ -44,7 +44,7 @@
 
 <script lang="ts" setup>
 import { nextTick, watch } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import MkModal from '@/components/ui/modal.vue';
 import { i18n } from '@/i18n';
 
diff --git a/packages/client/src/filters/user.ts b/packages/client/src/filters/user.ts
index ff2f7e2da..09f0566ee 100644
--- a/packages/client/src/filters/user.ts
+++ b/packages/client/src/filters/user.ts
@@ -1,5 +1,5 @@
-import * as misskey from 'misskey-js';
-import * as Acct from 'misskey-js/built/acct';
+import * as misskey from 'foundkey-js';
+import * as Acct from 'foundkey-js/built/acct';
 import { url } from '@/config';
 
 export const acct = (user: misskey.Acct) => {
diff --git a/packages/client/src/instance.ts b/packages/client/src/instance.ts
index 295fbb747..14795163a 100644
--- a/packages/client/src/instance.ts
+++ b/packages/client/src/instance.ts
@@ -1,5 +1,5 @@
 import { computed, reactive } from 'vue';
-import * as Misskey from 'misskey-js';
+import * as Misskey from 'foundkey-js';
 import { api } from './os';
 
 // TODO: 他のタブと永続化されたstateを同期
diff --git a/packages/client/src/os.ts b/packages/client/src/os.ts
index 0a90ac800..1b4ca37b4 100644
--- a/packages/client/src/os.ts
+++ b/packages/client/src/os.ts
@@ -3,7 +3,7 @@
 import { Component, markRaw, Ref, ref, defineAsyncComponent } from 'vue';
 import { EventEmitter } from 'eventemitter3';
 import insertTextAtCursor from 'insert-text-at-cursor';
-import * as Misskey from 'misskey-js';
+import * as Misskey from 'foundkey-js';
 import { apiUrl, url } from '@/config';
 import MkPostFormDialog from '@/components/post-form-dialog.vue';
 import MkWaitingDialog from '@/components/waiting-dialog.vue';
diff --git a/packages/client/src/pages/_error_.vue b/packages/client/src/pages/_error_.vue
index dbeea6649..96388e1a3 100644
--- a/packages/client/src/pages/_error_.vue
+++ b/packages/client/src/pages/_error_.vue
@@ -18,7 +18,7 @@
 </template>
 
 <script lang="ts" setup>
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import MkButton from '@/components/ui/button.vue';
 import { version } from '@/config';
 import * as os from '@/os';
diff --git a/packages/client/src/pages/api-console.vue b/packages/client/src/pages/api-console.vue
index 2f8eeadff..846912759 100644
--- a/packages/client/src/pages/api-console.vue
+++ b/packages/client/src/pages/api-console.vue
@@ -31,7 +31,7 @@
 <script lang="ts" setup>
 import { ref } from 'vue';
 import JSON5 from 'json5';
-import { Endpoints } from 'misskey-js';
+import { Endpoints } from 'foundkey-js';
 import MkButton from '@/components/ui/button.vue';
 import MkInput from '@/components/form/input.vue';
 import MkTextarea from '@/components/form/textarea.vue';
diff --git a/packages/client/src/pages/clip.vue b/packages/client/src/pages/clip.vue
index 425be0e49..cd0f30a0c 100644
--- a/packages/client/src/pages/clip.vue
+++ b/packages/client/src/pages/clip.vue
@@ -20,7 +20,7 @@
 
 <script lang="ts" setup>
 import { computed, watch, provide } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import XNotes from '@/components/notes.vue';
 import { $i } from '@/account';
 import { i18n } from '@/i18n';
diff --git a/packages/client/src/pages/follow.vue b/packages/client/src/pages/follow.vue
index f91f72c16..823a71800 100644
--- a/packages/client/src/pages/follow.vue
+++ b/packages/client/src/pages/follow.vue
@@ -6,7 +6,7 @@
 </template>
 
 <script lang="ts" setup>
-import * as Acct from 'misskey-js/built/acct';
+import * as Acct from 'foundkey-js/built/acct';
 import * as os from '@/os';
 import { mainRouter } from '@/router';
 import { i18n } from '@/i18n';
diff --git a/packages/client/src/pages/instance-info.vue b/packages/client/src/pages/instance-info.vue
index eb370ae41..b50ca4304 100644
--- a/packages/client/src/pages/instance-info.vue
+++ b/packages/client/src/pages/instance-info.vue
@@ -111,7 +111,7 @@
 </template>
 
 <script lang="ts" setup>
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import MkChart from '@/components/chart.vue';
 import MkObjectView from '@/components/object-view.vue';
 import FormLink from '@/components/form/link.vue';
diff --git a/packages/client/src/pages/messaging/index.vue b/packages/client/src/pages/messaging/index.vue
index 7df4c846f..3c6ee66b5 100644
--- a/packages/client/src/pages/messaging/index.vue
+++ b/packages/client/src/pages/messaging/index.vue
@@ -44,7 +44,7 @@
 
 <script lang="ts" setup>
 import { defineAsyncComponent, defineComponent, inject, markRaw, onMounted, onUnmounted } from 'vue';
-import * as Acct from 'misskey-js/built/acct';
+import * as Acct from 'foundkey-js/built/acct';
 import MkButton from '@/components/ui/button.vue';
 import { acct } from '@/filters/user';
 import * as os from '@/os';
diff --git a/packages/client/src/pages/messaging/messaging-room.form.vue b/packages/client/src/pages/messaging/messaging-room.form.vue
index 7153dd900..a1d4089e8 100644
--- a/packages/client/src/pages/messaging/messaging-room.form.vue
+++ b/packages/client/src/pages/messaging/messaging-room.form.vue
@@ -28,7 +28,7 @@
 
 <script lang="ts" setup>
 import { onMounted, watch } from 'vue';
-import * as Misskey from 'misskey-js';
+import * as Misskey from 'foundkey-js';
 import autosize from 'autosize';
 //import insertTextAtCursor from 'insert-text-at-cursor';
 import { throttle } from 'throttle-debounce';
diff --git a/packages/client/src/pages/messaging/messaging-room.message.vue b/packages/client/src/pages/messaging/messaging-room.message.vue
index 37d9af02f..c020310a1 100644
--- a/packages/client/src/pages/messaging/messaging-room.message.vue
+++ b/packages/client/src/pages/messaging/messaging-room.message.vue
@@ -37,7 +37,7 @@
 
 <script lang="ts" setup>
 import * as mfm from 'mfm-js';
-import * as Misskey from 'misskey-js';
+import * as Misskey from 'foundkey-js';
 import { extractUrlFromMfm } from '@/scripts/extract-url-from-mfm';
 import MkUrlPreview from '@/components/url-preview.vue';
 import * as os from '@/os';
diff --git a/packages/client/src/pages/messaging/messaging-room.vue b/packages/client/src/pages/messaging/messaging-room.vue
index 50ab50737..8da46f11f 100644
--- a/packages/client/src/pages/messaging/messaging-room.vue
+++ b/packages/client/src/pages/messaging/messaging-room.vue
@@ -51,8 +51,8 @@
 
 <script lang="ts" setup>
 import { computed, watch, onMounted, nextTick, onBeforeUnmount } from 'vue';
-import * as Misskey from 'misskey-js';
-import * as Acct from 'misskey-js/built/acct';
+import * as Misskey from 'foundkey-js';
+import * as Acct from 'foundkey-js/built/acct';
 import XMessage from './messaging-room.message.vue';
 import XForm from './messaging-room.form.vue';
 import XList from '@/components/date-separated-list.vue';
diff --git a/packages/client/src/pages/my-antennas/editor.vue b/packages/client/src/pages/my-antennas/editor.vue
index 32027846c..d8e7248c9 100644
--- a/packages/client/src/pages/my-antennas/editor.vue
+++ b/packages/client/src/pages/my-antennas/editor.vue
@@ -46,7 +46,7 @@
 
 <script lang="ts" setup>
 import { watch } from 'vue';
-import * as Acct from 'misskey-js/built/acct';
+import * as Acct from 'foundkey-js/built/acct';
 import MkButton from '@/components/ui/button.vue';
 import MkInput from '@/components/form/input.vue';
 import MkTextarea from '@/components/form/textarea.vue';
diff --git a/packages/client/src/pages/note.vue b/packages/client/src/pages/note.vue
index 25e4e5235..7e6876958 100644
--- a/packages/client/src/pages/note.vue
+++ b/packages/client/src/pages/note.vue
@@ -42,7 +42,7 @@
 
 <script lang="ts" setup>
 import { computed, defineComponent, watch } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import XNote from '@/components/note.vue';
 import XNoteDetailed from '@/components/note-detailed.vue';
 import XNotes from '@/components/notes.vue';
diff --git a/packages/client/src/pages/notifications.vue b/packages/client/src/pages/notifications.vue
index 1ab5d0ecf..c91d3bd4f 100644
--- a/packages/client/src/pages/notifications.vue
+++ b/packages/client/src/pages/notifications.vue
@@ -11,7 +11,7 @@
 
 <script lang="ts" setup>
 import { computed } from 'vue';
-import { notificationTypes } from 'misskey-js';
+import { notificationTypes } from 'foundkey-js';
 import XNotifications from '@/components/notifications.vue';
 import * as os from '@/os';
 import { i18n } from '@/i18n';
diff --git a/packages/client/src/pages/settings/notifications.vue b/packages/client/src/pages/settings/notifications.vue
index 8a3ed5eaa..ec15d4c1b 100644
--- a/packages/client/src/pages/settings/notifications.vue
+++ b/packages/client/src/pages/settings/notifications.vue
@@ -11,7 +11,7 @@
 
 <script lang="ts" setup>
 import { defineAsyncComponent } from 'vue';
-import { notificationTypes } from 'misskey-js';
+import { notificationTypes } from 'foundkey-js';
 import FormButton from '@/components/ui/button.vue';
 import FormLink from '@/components/form/link.vue';
 import FormSection from '@/components/form/section.vue';
diff --git a/packages/client/src/pages/share.vue b/packages/client/src/pages/share.vue
index b6e9eda64..881331b86 100644
--- a/packages/client/src/pages/share.vue
+++ b/packages/client/src/pages/share.vue
@@ -25,9 +25,9 @@
 <script lang="ts" setup>
 // SPECIFICATION: https://misskey-hub.net/docs/features/share-form.html
 
-import { noteVisibilities } from 'misskey-js';
-import * as Acct from 'misskey-js/built/acct';
-import * as Misskey from 'misskey-js';
+import { noteVisibilities } from 'foundkey-js';
+import * as Acct from 'foundkey-js/built/acct';
+import * as Misskey from 'foundkey-js';
 import MkButton from '@/components/ui/button.vue';
 import XPostForm from '@/components/post-form.vue';
 import * as os from '@/os';
diff --git a/packages/client/src/pages/user-info.vue b/packages/client/src/pages/user-info.vue
index 1cede844f..032a38d32 100644
--- a/packages/client/src/pages/user-info.vue
+++ b/packages/client/src/pages/user-info.vue
@@ -102,7 +102,7 @@
 
 <script lang="ts" setup>
 import { computed, defineAsyncComponent, defineComponent, watch } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import MkChart from '@/components/chart.vue';
 import MkObjectView from '@/components/object-view.vue';
 import FormTextarea from '@/components/form/textarea.vue';
diff --git a/packages/client/src/pages/user/follow-list.vue b/packages/client/src/pages/user/follow-list.vue
index 98a1fc0f8..6a64a8f32 100644
--- a/packages/client/src/pages/user/follow-list.vue
+++ b/packages/client/src/pages/user/follow-list.vue
@@ -10,7 +10,7 @@
 
 <script lang="ts" setup>
 import { computed } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import MkUserInfo from '@/components/user-info.vue';
 import MkPagination from '@/components/ui/pagination.vue';
 
diff --git a/packages/client/src/pages/user/followers.vue b/packages/client/src/pages/user/followers.vue
index b61b48329..cf87aa11e 100644
--- a/packages/client/src/pages/user/followers.vue
+++ b/packages/client/src/pages/user/followers.vue
@@ -15,8 +15,8 @@
 
 <script lang="ts" setup>
 import { defineAsyncComponent, computed, inject, onMounted, onUnmounted, watch } from 'vue';
-import * as Acct from 'misskey-js/built/acct';
-import * as misskey from 'misskey-js';
+import * as Acct from 'foundkey-js/built/acct';
+import * as misskey from 'foundkey-js';
 import XFollowList from './follow-list.vue';
 import * as os from '@/os';
 import { definePageMetadata } from '@/scripts/page-metadata';
diff --git a/packages/client/src/pages/user/following.vue b/packages/client/src/pages/user/following.vue
index a23977b42..4afc8cf4b 100644
--- a/packages/client/src/pages/user/following.vue
+++ b/packages/client/src/pages/user/following.vue
@@ -15,8 +15,8 @@
 
 <script lang="ts" setup>
 import { defineAsyncComponent, computed, inject, onMounted, onUnmounted, watch } from 'vue';
-import * as Acct from 'misskey-js/built/acct';
-import * as misskey from 'misskey-js';
+import * as Acct from 'foundkey-js/built/acct';
+import * as misskey from 'foundkey-js';
 import XFollowList from './follow-list.vue';
 import * as os from '@/os';
 import { definePageMetadata } from '@/scripts/page-metadata';
diff --git a/packages/client/src/pages/user/gallery.vue b/packages/client/src/pages/user/gallery.vue
index 6af28d455..8ca034d37 100644
--- a/packages/client/src/pages/user/gallery.vue
+++ b/packages/client/src/pages/user/gallery.vue
@@ -10,7 +10,7 @@
 
 <script lang="ts" setup>
 import { computed } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import MkGalleryPostPreview from '@/components/gallery-post-preview.vue';
 import MkPagination from '@/components/ui/pagination.vue';
 
diff --git a/packages/client/src/pages/user/home.vue b/packages/client/src/pages/user/home.vue
index 4a2cce39c..c1807213f 100644
--- a/packages/client/src/pages/user/home.vue
+++ b/packages/client/src/pages/user/home.vue
@@ -110,7 +110,7 @@
 <script lang="ts" setup>
 import { defineAsyncComponent, computed, inject, onMounted, onUnmounted, watch } from 'vue';
 import calcAge from 's-age';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import XUserTimeline from './index.timeline.vue';
 import XNote from '@/components/note.vue';
 import MkFollowButton from '@/components/follow-button.vue';
diff --git a/packages/client/src/pages/user/index.activity.vue b/packages/client/src/pages/user/index.activity.vue
index 304cbd30d..90f1632ea 100644
--- a/packages/client/src/pages/user/index.activity.vue
+++ b/packages/client/src/pages/user/index.activity.vue
@@ -14,7 +14,7 @@
 </template>
 
 <script lang="ts" setup>
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import MkContainer from '@/components/ui/container.vue';
 import MkChart from '@/components/chart.vue';
 import * as os from '@/os';
diff --git a/packages/client/src/pages/user/index.timeline.vue b/packages/client/src/pages/user/index.timeline.vue
index 8aed1e447..e75f83118 100644
--- a/packages/client/src/pages/user/index.timeline.vue
+++ b/packages/client/src/pages/user/index.timeline.vue
@@ -11,7 +11,7 @@
 
 <script lang="ts" setup>
 import { ref, computed } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import XNotes from '@/components/notes.vue';
 import MkTab from '@/components/tab.vue';
 import * as os from '@/os';
diff --git a/packages/client/src/pages/user/index.vue b/packages/client/src/pages/user/index.vue
index 55719d324..1440193f7 100644
--- a/packages/client/src/pages/user/index.vue
+++ b/packages/client/src/pages/user/index.vue
@@ -20,8 +20,8 @@
 <script lang="ts" setup>
 import { defineAsyncComponent, computed, inject, onMounted, onUnmounted, watch } from 'vue';
 import calcAge from 's-age';
-import * as Acct from 'misskey-js/built/acct';
-import * as misskey from 'misskey-js';
+import * as Acct from 'foundkey-js/built/acct';
+import * as misskey from 'foundkey-js';
 import { getScrollPosition } from '@/scripts/scroll';
 import { getUserMenu } from '@/scripts/get-user-menu';
 import number from '@/filters/number';
diff --git a/packages/client/src/pages/user/pages.vue b/packages/client/src/pages/user/pages.vue
index ad101158e..e56995575 100644
--- a/packages/client/src/pages/user/pages.vue
+++ b/packages/client/src/pages/user/pages.vue
@@ -8,7 +8,7 @@
 
 <script lang="ts" setup>
 import { computed } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import MkPagePreview from '@/components/page-preview.vue';
 import MkPagination from '@/components/ui/pagination.vue';
 
diff --git a/packages/client/src/pages/user/reactions.vue b/packages/client/src/pages/user/reactions.vue
index a6c998db0..af96b6d6d 100644
--- a/packages/client/src/pages/user/reactions.vue
+++ b/packages/client/src/pages/user/reactions.vue
@@ -15,7 +15,7 @@
 
 <script lang="ts" setup>
 import { computed } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import MkPagination from '@/components/ui/pagination.vue';
 import MkNote from '@/components/note.vue';
 
diff --git a/packages/client/src/pages/welcome.timeline.vue b/packages/client/src/pages/welcome.timeline.vue
index 9a6388963..00de07d31 100644
--- a/packages/client/src/pages/welcome.timeline.vue
+++ b/packages/client/src/pages/welcome.timeline.vue
@@ -23,7 +23,7 @@
 
 <script lang="ts" setup>
 import { onUpdated, ref, Ref } from 'vue';
-import { Note } from 'misskey-js/built/entities';
+import { Note } from 'foundkey-js/built/entities';
 import XReactionsViewer from '@/components/reactions-viewer.vue';
 import XMediaList from '@/components/media-list.vue';
 import XPoll from '@/components/poll.vue';
diff --git a/packages/client/src/scripts/get-note-menu.ts b/packages/client/src/scripts/get-note-menu.ts
index d3bb98d84..042de69fe 100644
--- a/packages/client/src/scripts/get-note-menu.ts
+++ b/packages/client/src/scripts/get-note-menu.ts
@@ -1,5 +1,5 @@
 import { defineAsyncComponent, Ref } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import { $i } from '@/account';
 import { i18n } from '@/i18n';
 import { instance } from '@/instance';
diff --git a/packages/client/src/scripts/get-note-summary.ts b/packages/client/src/scripts/get-note-summary.ts
index 348351206..9e9c5abe7 100644
--- a/packages/client/src/scripts/get-note-summary.ts
+++ b/packages/client/src/scripts/get-note-summary.ts
@@ -1,4 +1,4 @@
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import { i18n } from '@/i18n';
 
 /**
diff --git a/packages/client/src/scripts/get-user-menu.ts b/packages/client/src/scripts/get-user-menu.ts
index 78b8e8380..a6fa61b22 100644
--- a/packages/client/src/scripts/get-user-menu.ts
+++ b/packages/client/src/scripts/get-user-menu.ts
@@ -1,4 +1,4 @@
-import * as Acct from 'misskey-js/built/acct';
+import * as Acct from 'foundkey-js/built/acct';
 import { defineAsyncComponent } from 'vue';
 import { i18n } from '@/i18n';
 import copyToClipboard from '@/scripts/copy-to-clipboard';
diff --git a/packages/client/src/scripts/lookup-user.ts b/packages/client/src/scripts/lookup-user.ts
index 3ab9d5530..b75eb45d1 100644
--- a/packages/client/src/scripts/lookup-user.ts
+++ b/packages/client/src/scripts/lookup-user.ts
@@ -1,4 +1,4 @@
-import * as Acct from 'misskey-js/built/acct';
+import * as Acct from 'foundkey-js/built/acct';
 import { i18n } from '@/i18n';
 import * as os from '@/os';
 
diff --git a/packages/client/src/scripts/page-metadata.ts b/packages/client/src/scripts/page-metadata.ts
index 0db8369f9..011fa8387 100644
--- a/packages/client/src/scripts/page-metadata.ts
+++ b/packages/client/src/scripts/page-metadata.ts
@@ -1,4 +1,4 @@
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import { ComputedRef, inject, isRef, onActivated, onMounted, provide, ref, Ref } from 'vue';
 
 export const setPageMetadata = Symbol('setPageMetadata');
diff --git a/packages/client/src/scripts/select-file.ts b/packages/client/src/scripts/select-file.ts
index c49a8fdba..2da744f39 100644
--- a/packages/client/src/scripts/select-file.ts
+++ b/packages/client/src/scripts/select-file.ts
@@ -1,5 +1,5 @@
 import { ref } from 'vue';
-import { DriveFile } from 'misskey-js/built/entities';
+import { DriveFile } from 'foundkey-js/built/entities';
 import * as os from '@/os';
 import { stream } from '@/stream';
 import { i18n } from '@/i18n';
diff --git a/packages/client/src/scripts/upload.ts b/packages/client/src/scripts/upload.ts
index a2a085faa..8ca08aaaf 100644
--- a/packages/client/src/scripts/upload.ts
+++ b/packages/client/src/scripts/upload.ts
@@ -1,5 +1,5 @@
 import { reactive, ref } from 'vue';
-import * as Misskey from 'misskey-js';
+import * as Misskey from 'foundkey-js';
 import { readAndCompressImage } from 'browser-image-resizer';
 import { defaultStore } from '@/store';
 import { apiUrl } from '@/config';
diff --git a/packages/client/src/scripts/use-note-capture.ts b/packages/client/src/scripts/use-note-capture.ts
index e6bdb345c..e6d076c0c 100644
--- a/packages/client/src/scripts/use-note-capture.ts
+++ b/packages/client/src/scripts/use-note-capture.ts
@@ -1,5 +1,5 @@
 import { onUnmounted, Ref } from 'vue';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import { stream } from '@/stream';
 import { $i } from '@/account';
 
diff --git a/packages/client/src/stream.ts b/packages/client/src/stream.ts
index dea3459b8..ef971a159 100644
--- a/packages/client/src/stream.ts
+++ b/packages/client/src/stream.ts
@@ -1,4 +1,4 @@
-import * as Misskey from 'misskey-js';
+import * as Misskey from 'foundkey-js';
 import { markRaw } from 'vue';
 import { $i } from '@/account';
 import { url } from '@/config';
diff --git a/packages/client/src/types/menu.ts b/packages/client/src/types/menu.ts
index ed67e6ab8..9c8934cb9 100644
--- a/packages/client/src/types/menu.ts
+++ b/packages/client/src/types/menu.ts
@@ -1,4 +1,4 @@
-import * as Misskey from 'misskey-js';
+import * as Misskey from 'foundkey-js';
 import { Ref } from 'vue';
 
 export type MenuAction = (ev: MouseEvent) => void;
diff --git a/packages/client/src/ui/deck/deck-store.ts b/packages/client/src/ui/deck/deck-store.ts
index 03d57c346..0ad13d788 100644
--- a/packages/client/src/ui/deck/deck-store.ts
+++ b/packages/client/src/ui/deck/deck-store.ts
@@ -1,6 +1,6 @@
 import { throttle } from 'throttle-debounce';
 import { markRaw } from 'vue';
-import { notificationTypes } from 'misskey-js';
+import { notificationTypes } from 'foundkey-js';
 import { Storage } from '../../pizzax';
 import { i18n } from '@/i18n';
 import { api } from '@/os';
diff --git a/packages/foundkey-js/tsconfig.json b/packages/foundkey-js/tsconfig.json
index a03a24262..6813e1f57 100644
--- a/packages/foundkey-js/tsconfig.json
+++ b/packages/foundkey-js/tsconfig.json
@@ -2,18 +2,20 @@
 	"$schema": "http://json.schemastore.org/tsconfig",
 	"compilerOptions": {
 		"target": "es2020",
-		"module": "commonjs",
+		"module": "es2020",
 		"declaration": true,
 		"declarationMap": true,
 		"sourceMap": true,
 		"outDir": "./built/",
 		"removeComments": true,
+		"skipLibCheck": true,
 		"strict": true,
 		"strictFunctionTypes": true,
 		"strictNullChecks": true,
 		"experimentalDecorators": true,
 		"noImplicitReturns": true,
-		"esModuleInterop": true
+		"esModuleInterop": true,
+		"moduleResolution": "node"
 	},
 	"include": [
 		"src/**/*"
diff --git a/scripts/build.js b/scripts/build.js
index 608648b95..f2e45bd89 100644
--- a/scripts/build.js
+++ b/scripts/build.js
@@ -9,6 +9,14 @@ const execa = require('execa');
 		stderr: process.stderr,
 	});
 
+	console.log('building packages/foundkey-js ...');
+
+	await execa('npm', ['run', 'build'], {
+		cwd: __dirname + '/../packages/foundkey-js',
+		stdout: process.stdout,
+		stderr: process.stderr,
+	});
+
 	console.log('building packages/client ...');
 
 	await execa('npm', ['run', 'build'], {
diff --git a/scripts/clean-all.js b/scripts/clean-all.js
index 456b88032..9eb078911 100644
--- a/scripts/clean-all.js
+++ b/scripts/clean-all.js
@@ -7,6 +7,9 @@ const fs = require('fs');
 	fs.rmSync(__dirname + '/../packages/client/built', { recursive: true, force: true });
 	fs.rmSync(__dirname + '/../packages/client/node_modules', { recursive: true, force: true });
 
+	fs.rmSync(__dirname + '/../packages/foundkey-js/built', { recursive: true, force: true });
+	fs.rmSync(__dirname + '/../packages/foundkey-js/node_modules', { recursive: true, force: true });
+
 	fs.rmSync(__dirname + '/../packages/sw/built', { recursive: true, force: true });
 	fs.rmSync(__dirname + '/../packages/sw/node_modules', { recursive: true, force: true });
 
diff --git a/scripts/clean.js b/scripts/clean.js
index 70b9d882b..018f74064 100644
--- a/scripts/clean.js
+++ b/scripts/clean.js
@@ -3,6 +3,7 @@ const fs = require('fs');
 (async () => {
 	fs.rmSync(__dirname + '/../packages/backend/built', { recursive: true, force: true });
 	fs.rmSync(__dirname + '/../packages/client/built', { recursive: true, force: true });
+	fs.rmSync(__dirname + '/../packages/foundkey-js/built', { recursive: true, force: true });
 	fs.rmSync(__dirname + '/../packages/sw/built', { recursive: true, force: true });
 	fs.rmSync(__dirname + '/../built', { recursive: true, force: true });
 })();
diff --git a/scripts/install-packages.js b/scripts/install-packages.js
index d1dea3ebe..57ee85976 100644
--- a/scripts/install-packages.js
+++ b/scripts/install-packages.js
@@ -9,6 +9,14 @@ const execa = require('execa');
 		stderr: process.stderr,
 	});
 
+	console.log('installing dependencies of packages/foundkey-js ...');
+
+	await execa('yarn', ['install'], {
+		cwd: __dirname + '/../packages/foundkey-js',
+		stdout: process.stdout,
+		stderr: process.stderr,
+	});
+
 	console.log('installing dependencies of packages/client ...');
 
 	await execa('yarn', ['install'], {