diff --git a/.env.template b/.env.template
index 772ed632..649cdfc0 100644
--- a/.env.template
+++ b/.env.template
@@ -1,14 +1,16 @@
-# サンプルやテストに利用する Sora の Signaling URL を指定してください
+# サンプルに利用する Sora の Signaling URL を指定してください
 VITE_SORA_SIGNALING_URL=wss://sora.example.com/signaling
-# サンプルやテストに利用する Sora の ChannelID を指定してください
+# サンプルに利用する Sora の ChannelID を指定してください
 VITE_SORA_CHANNEL_ID=sora-js-sdk
-# サンプルやテストに利用するアクセストークンを指定してください、不要であれば空欄で大丈夫です
+# サンプルに利用するアクセストークンを指定してください、不要であれば空欄で大丈夫です
 VITE_ACCESS_TOKEN=access_token
 
 
-# サンプルやテストに利用する Sora の API URL を指定ください、不要であれば空欄で大丈夫です
-VITE_SORA_API_URL=https://sora.example.com/api
-# サンプルやテストに利用する Sora の WHIP のエンドポイント URL を指定してください、不要であれば空欄で大丈夫です
-VITE_SORA_WHIP_ENDPOINT_URL=https://sora.example.com/whip
-# サンプルやテストに利用する Sora の WHEP のエンドポイント URL を指定してください、不要であれば空欄で大丈夫です
-VITE_SORA_WHEP_ENDPOINT_URL=https://sora.example.com/whep
\ No newline at end of file
+# テストに利用する Sora の設定
+VITE_TEST_SIGNALING_URL=
+VITE_TEST_CHANNEL_ID_PREFIX=
+VITE_TEST_CHANNEL_ID_SUFFIX=
+VITE_TEST_API_URL=
+VITE_TEST_WHIP_ENDPOINT_URL=
+VITE_TEST_WHEP_ENDPOINT_URL=
+VITE_TEST_SECRET_KEY=
\ No newline at end of file
diff --git a/.github/workflows/e2e-test.yml b/.github/workflows/e2e-test.yml
index 6770a991..a35876ee 100644
--- a/.github/workflows/e2e-test.yml
+++ b/.github/workflows/e2e-test.yml
@@ -23,12 +23,12 @@ jobs:
         # browser: ["chromium", "firefox", "webkit"]
         browser: ["chromium"]
     env:
-      VITE_SORA_SIGNALING_URL: ${{ secrets.TEST_SIGNALING_URL }}
-      VITE_SORA_WHIP_ENDPOINT_URL: ${{ secrets.TEST_WHIP_ENDPOINT_URL }}
-      VITE_SORA_WHEP_ENDPOINT_URL: ${{ secrets.TEST_WHEP_ENDPOINT_URL }}
-      VITE_SORA_CHANNEL_ID_PREFIX: ${{ secrets.TEST_CHANNEL_ID_PREFIX }}
-      VITE_SORA_API_URL: ${{ secrets.TEST_API_URL }}
-      VITE_ACCESS_TOKEN: ${{ secrets.TEST_SECRET_KEY }}
+      TEST_SIGNALING_URL: ${{ secrets.TEST_SIGNALING_URL }}
+      TEST_WHIP_ENDPOINT_URL: ${{ secrets.TEST_WHIP_ENDPOINT_URL }}
+      TEST_WHEP_ENDPOINT_URL: ${{ secrets.TEST_WHEP_ENDPOINT_URL }}
+      TEST_CHANNEL_ID_PREFIX: ${{ secrets.TEST_CHANNEL_ID_PREFIX }}
+      TEST_API_URL: ${{ secrets.TEST_API_URL }}
+      TEST_SECRET_KEY: ${{ secrets.TEST_SECRET_KEY }}
     steps:
       - uses: actions/checkout@v4
       - uses: tailscale/github-action@v2
@@ -46,7 +46,7 @@ jobs:
       - run: pnpm exec playwright install ${{ matrix.browser }} --with-deps
       - run: pnpm exec playwright test --project=${{ matrix.browser }}
         env:
-          VITE_SORA_CHANNEL_ID_SUFFIX: _${{ matrix.node }}
+          VITE_TEST_CHANNEL_ID_SUFFIX: _${{ matrix.node }}
       # - uses: actions/upload-artifact@v4
       #   if: always()
       #   with:
diff --git a/.github/workflows/npm-pkg-e2e-test.yml b/.github/workflows/npm-pkg-e2e-test.yml
index 37564990..473202c6 100644
--- a/.github/workflows/npm-pkg-e2e-test.yml
+++ b/.github/workflows/npm-pkg-e2e-test.yml
@@ -35,12 +35,12 @@ jobs:
         # browser: ["chromium", "firefox", "webkit"]
         browser: ["chromium"]
     env:
-      VITE_SORA_SIGNALING_URL: ${{ secrets.TEST_SIGNALING_URL }}
-      VITE_SORA_WHIP_ENDPOINT_URL: ${{ secrets.TEST_WHIP_ENDPOINT_URL }}
-      VITE_SORA_WHEP_ENDPOINT_URL: ${{ secrets.TEST_WHEP_ENDPOINT_URL }}
-      VITE_SORA_CHANNEL_ID_PREFIX: ${{ secrets.TEST_CHANNEL_ID_PREFIX }}
-      VITE_SORA_API_URL: ${{ secrets.TEST_API_URL }}
-      VITE_ACCESS_TOKEN: ${{ secrets.TEST_SECRET_KEY }}
+      VITE_TEST_SIGNALING_URL: ${{ secrets.TEST_SIGNALING_URL }}
+      VITE_TEST_WHIP_ENDPOINT_URL: ${{ secrets.TEST_WHIP_ENDPOINT_URL }}
+      VITE_TEST_WHEP_ENDPOINT_URL: ${{ secrets.TEST_WHEP_ENDPOINT_URL }}
+      VITE_TEST_CHANNEL_ID_PREFIX: ${{ secrets.TEST_CHANNEL_ID_PREFIX }}
+      VITE_TEST_API_URL: ${{ secrets.TEST_API_URL }}
+      VITE_TEST_SECRET_KEY: ${{ secrets.TEST_SECRET_KEY }}
       NPM_PKG_E2E_TEST: true
     steps:
       - uses: actions/checkout@v4
@@ -62,7 +62,7 @@ jobs:
       - run: pnpm exec playwright install ${{ matrix.browser }} --with-deps
       - run: pnpm exec playwright test --project=${{ matrix.browser }}
         env:
-          VITE_SORA_CHANNEL_ID_SUFFIX: _${{ matrix.node }}_${{ matrix.sdk_version }}
+          VITE_TEST_CHANNEL_ID_SUFFIX: _${{ matrix.node }}_${{ matrix.sdk_version }}
       # - uses: actions/upload-artifact@v4
       #   if: always()
       #   with:
diff --git a/e2e-tests/data_channel_signaling_only/main.mts b/e2e-tests/data_channel_signaling_only/main.mts
index 95c0da32..4abb3977 100644
--- a/e2e-tests/data_channel_signaling_only/main.mts
+++ b/e2e-tests/data_channel_signaling_only/main.mts
@@ -7,16 +7,16 @@ import Sora, {
 } from 'sora-js-sdk'
 
 document.addEventListener('DOMContentLoaded', async () => {
-  const SORA_SIGNALING_URL = import.meta.env.VITE_SORA_SIGNALING_URL
-  const SORA_CHANNEL_ID_PREFIX = import.meta.env.VITE_SORA_CHANNEL_ID_PREFIX || ''
-  const SORA_CHANNEL_ID_SUFFIX = import.meta.env.VITE_SORA_CHANNEL_ID_SUFFIX || ''
-  const ACCESS_TOKEN = import.meta.env.VITE_ACCESS_TOKEN || ''
+  const signalingUrl = import.meta.env.VITE_TEST_SIGNALING_URL
+  const channelIdPrefix = import.meta.env.VITE_TEST_CHANNEL_ID_PREFIX || ''
+  const channelIdSuffix = import.meta.env.VITE_TEST_CHANNEL_ID_SUFFIX || ''
+  const secretKey = import.meta.env.VITE_TEST_SECRET_KEY
 
   const client = new SoraClient(
-    SORA_SIGNALING_URL,
-    SORA_CHANNEL_ID_PREFIX,
-    SORA_CHANNEL_ID_SUFFIX,
-    ACCESS_TOKEN,
+    signalingUrl,
+    channelIdPrefix,
+    channelIdSuffix,
+    secretKey,
   )
 
   // SDK バージョンの表示
@@ -77,17 +77,17 @@ class SoraClient {
   private connection: ConnectionPublisher
 
   constructor(
-    signaling_url: string,
-    channel_id_prefix: string,
-    channel_id_suffix: string,
-    access_token: string,
+    signalingUrl: string,
+    channelIdPrefix: string,
+    channelIdSuffix: string,
+    secretKey: string,
   ) {
-    this.sora = Sora.connection(signaling_url, this.debug)
+    this.sora = Sora.connection(signalingUrl, this.debug)
 
     // channel_id の生成
-    this.channelId = `${channel_id_prefix}sendonly_recvonly${channel_id_suffix}`
+    this.channelId = `${channelIdPrefix}sendonly_recvonly${channelIdSuffix}`
     // access_token を指定する metadata の生成
-    this.metadata = { access_token: access_token }
+    this.metadata = { access_token: secretKey }
 
     this.connection = this.sora.sendonly(this.channelId, this.metadata, this.options)
     this.connection.on('notify', this.onNotify.bind(this))
diff --git a/e2e-tests/messaging/main.mts b/e2e-tests/messaging/main.mts
index 411418ca..dfdd868f 100644
--- a/e2e-tests/messaging/main.mts
+++ b/e2e-tests/messaging/main.mts
@@ -16,10 +16,10 @@ const getChannelName = (): string => {
 }
 
 document.addEventListener('DOMContentLoaded', async () => {
-  const SORA_SIGNALING_URL = import.meta.env.VITE_SORA_SIGNALING_URL
-  const SORA_CHANNEL_ID_PREFIX = import.meta.env.VITE_SORA_CHANNEL_ID_PREFIX || ''
-  const SORA_CHANNEL_ID_SUFFIX = import.meta.env.VITE_SORA_CHANNEL_ID_SUFFIX || ''
-  const ACCESS_TOKEN = import.meta.env.VITE_ACCESS_TOKEN || ''
+  const signalingUrl = import.meta.env.VITE_TEST_SIGNALING_URL
+  const channelIdPrefix = import.meta.env.VITE_TEST_CHANNEL_ID_PREFIX || ''
+  const channelIdSuffix = import.meta.env.VITE_TEST_CHANNEL_ID_SUFFIX || ''
+  const secretKey = import.meta.env.VITE_TEST_SECRET_KEY
 
   const soraJsSdkVersion = Sora.version()
   const soraJsSdkVersionElement = document.getElementById('sora-js-sdk-version')
@@ -32,10 +32,10 @@ document.addEventListener('DOMContentLoaded', async () => {
   document.querySelector('#connect')?.addEventListener('click', async () => {
     const channelName = getChannelName()
     client = new SoraClient(
-      SORA_SIGNALING_URL,
-      SORA_CHANNEL_ID_PREFIX,
-      SORA_CHANNEL_ID_SUFFIX,
-      ACCESS_TOKEN,
+      signalingUrl,
+      channelIdPrefix,
+      channelIdSuffix,
+      secretKey,
       channelName,
     )
     const checkCompress = document.getElementById('check-compress') as HTMLInputElement
@@ -94,12 +94,12 @@ class SoraClient {
     signalingUrl: string,
     channelIdPrefix: string,
     channelIdSuffix: string,
-    accessToken: string,
+    secretKey: string,
     channelName: string,
   ) {
     this.sora = Sora.connection(signalingUrl, this.debug)
     this.channelId = `${channelIdPrefix}${channelName}${channelIdSuffix}`
-    this.metadata = { access_token: accessToken }
+    this.metadata = { access_token: secretKey }
 
     this.options = {
       dataChannelSignaling: true,
diff --git a/e2e-tests/recvonly/main.mts b/e2e-tests/recvonly/main.mts
index 5193a186..77410767 100644
--- a/e2e-tests/recvonly/main.mts
+++ b/e2e-tests/recvonly/main.mts
@@ -6,17 +6,17 @@ import Sora, {
 
 document.addEventListener('DOMContentLoaded', () => {
   // 環境変数の読み込み
-  const SORA_SIGNALING_URL = import.meta.env.VITE_SORA_SIGNALING_URL
-  const SORA_CHANNEL_ID_PREFIX = import.meta.env.VITE_SORA_CHANNEL_ID_PREFIX || ''
-  const SORA_CHANNEL_ID_SUFFIX = import.meta.env.VITE_SORA_CHANNEL_ID_SUFFIX || ''
-  const ACCESS_TOKEN = import.meta.env.VITE_ACCESS_TOKEN || ''
+  const signalingUrl = import.meta.env.VITE_TEST_SIGNALING_URL
+  const channelIdPrefix = import.meta.env.VITE_TEST_CHANNEL_ID_PREFIX || ''
+  const channelIdSuffix = import.meta.env.VITE_TEST_CHANNEL_ID_SUFFIX || ''
+  const secretKey = import.meta.env.VITE_TEST_SECRET_KEY
 
   // Sora クライアントの初期化
   const client = new SoraClient(
-    SORA_SIGNALING_URL,
-    SORA_CHANNEL_ID_PREFIX,
-    SORA_CHANNEL_ID_SUFFIX,
-    ACCESS_TOKEN,
+    signalingUrl,
+    channelIdPrefix,
+    channelIdSuffix,
+    secretKey,
   )
 
   // SDK バージョンの表示
diff --git a/e2e-tests/sendonly/main.mts b/e2e-tests/sendonly/main.mts
index a4ca9a4e..0f883cf0 100644
--- a/e2e-tests/sendonly/main.mts
+++ b/e2e-tests/sendonly/main.mts
@@ -6,16 +6,16 @@ import Sora, {
 } from 'sora-js-sdk'
 
 document.addEventListener('DOMContentLoaded', async () => {
-  const SORA_SIGNALING_URL = import.meta.env.VITE_SORA_SIGNALING_URL
-  const SORA_CHANNEL_ID_PREFIX = import.meta.env.VITE_SORA_CHANNEL_ID_PREFIX || ''
-  const SORA_CHANNEL_ID_SUFFIX = import.meta.env.VITE_SORA_CHANNEL_ID_SUFFIX || ''
-  const ACCESS_TOKEN = import.meta.env.VITE_ACCESS_TOKEN || ''
+  const signalingUrl = import.meta.env.VITE_TEST_SIGNALING_URL
+  const channelIdPrefix = import.meta.env.VITE_TEST_CHANNEL_ID_PREFIX || ''
+  const channelIdSuffix = import.meta.env.VITE_TEST_CHANNEL_ID_SUFFIX || ''
+  const secretKey = import.meta.env.VITE_TEST_SECRET_KEY
 
   const client = new SoraClient(
-    SORA_SIGNALING_URL,
-    SORA_CHANNEL_ID_PREFIX,
-    SORA_CHANNEL_ID_SUFFIX,
-    ACCESS_TOKEN,
+    signalingUrl,
+    channelIdPrefix,
+    channelIdSuffix,
+    secretKey,
   )
 
   // SDK バージョンの表示
@@ -69,17 +69,17 @@ class SoraClient {
   private connection: ConnectionPublisher
 
   constructor(
-    signaling_url: string,
-    channel_id_prefix: string,
-    channel_id_suffix: string,
-    access_token: string,
+    signalingUrl: string,
+    channelIdPrefix: string,
+    channelIdSuffix: string,
+    secretKey: string,
   ) {
-    this.sora = Sora.connection(signaling_url, this.debug)
+    this.sora = Sora.connection(signalingUrl, this.debug)
 
     // channel_id の生成
-    this.channelId = `${channel_id_prefix}sendonly_recvonly${channel_id_suffix}`
+    this.channelId = `${channelIdPrefix}sendonly_recvonly${channelIdSuffix}`
     // access_token を指定する metadata の生成
-    this.metadata = { access_token: access_token }
+    this.metadata = { access_token: secretKey }
 
     this.connection = this.sora.sendonly(this.channelId, this.metadata, this.options)
     this.connection.on('notify', this.onNotify.bind(this))
diff --git a/e2e-tests/sendonly_audio/main.mts b/e2e-tests/sendonly_audio/main.mts
index 9305e06b..d7b772ed 100644
--- a/e2e-tests/sendonly_audio/main.mts
+++ b/e2e-tests/sendonly_audio/main.mts
@@ -5,16 +5,16 @@ import Sora, {
 } from 'sora-js-sdk'
 
 document.addEventListener('DOMContentLoaded', async () => {
-  const SORA_SIGNALING_URL = import.meta.env.VITE_SORA_SIGNALING_URL
-  const SORA_CHANNEL_ID_PREFIX = import.meta.env.VITE_SORA_CHANNEL_ID_PREFIX || ''
-  const SORA_CHANNEL_ID_SUFFIX = import.meta.env.VITE_SORA_CHANNEL_ID_SUFFIX || ''
-  const ACCESS_TOKEN = import.meta.env.VITE_ACCESS_TOKEN || ''
+  const signalingUrl = import.meta.env.VITE_TEST_SIGNALING_URL
+  const channelIdPrefix = import.meta.env.VITE_TEST_CHANNEL_ID_PREFIX || ''
+  const channelIdSuffix = import.meta.env.VITE_TEST_CHANNEL_ID_SUFFIX || ''
+  const secretKey = import.meta.env.VITE_TEST_SECRET_KEY
 
   const client = new SoraClient(
-    SORA_SIGNALING_URL,
-    SORA_CHANNEL_ID_PREFIX,
-    SORA_CHANNEL_ID_SUFFIX,
-    ACCESS_TOKEN,
+    signalingUrl,
+    channelIdPrefix,
+    channelIdSuffix,
+    secretKey,
   )
 
   document.querySelector('#connect')?.addEventListener('click', async () => {
@@ -73,17 +73,17 @@ class SoraClient {
   private connection: ConnectionPublisher
 
   constructor(
-    signaling_url: string,
-    channel_id_prefix: string,
-    channel_id_suffix: string,
-    access_token: string,
+    signalingUrl: string,
+    channelIdPrefix: string,
+    channelIdSuffix: string,
+    secretKey: string,
   ) {
-    this.sora = Sora.connection(signaling_url, this.debug)
+    this.sora = Sora.connection(signalingUrl, this.debug)
 
     // channel_id の生成
-    this.channelId = `${channel_id_prefix}sendonly_audio_codec${channel_id_suffix}`
+    this.channelId = `${channelIdPrefix}sendonly_audio_codec${channelIdSuffix}`
     // access_token を指定する metadata の生成
-    this.metadata = { access_token: access_token }
+    this.metadata = { access_token: secretKey }
 
     this.connection = this.sora.sendonly(this.channelId, this.metadata, this.options)
     this.connection.on('notify', this.onnotify.bind(this))
diff --git a/e2e-tests/sendrecv/main.mts b/e2e-tests/sendrecv/main.mts
index ca7f2c6d..9cef7cb8 100644
--- a/e2e-tests/sendrecv/main.mts
+++ b/e2e-tests/sendrecv/main.mts
@@ -25,10 +25,10 @@ const getVideoCodecType = (): VideoCodecType | undefined => {
 }
 
 document.addEventListener('DOMContentLoaded', async () => {
-  const SORA_SIGNALING_URL = import.meta.env.VITE_SORA_SIGNALING_URL
-  const SORA_CHANNEL_ID_PREFIX = import.meta.env.VITE_SORA_CHANNEL_ID_PREFIX || ''
-  const SORA_CHANNEL_ID_SUFFIX = import.meta.env.VITE_SORA_CHANNEL_ID_SUFFIX || ''
-  const ACCESS_TOKEN = import.meta.env.VITE_ACCESS_TOKEN || ''
+  const signalingUrl = import.meta.env.VITE_TEST_SIGNALING_URL
+  const channelIdPrefix = import.meta.env.VITE_TEST_CHANNEL_ID_PREFIX || ''
+  const channelIdSuffix = import.meta.env.VITE_TEST_CHANNEL_ID_SUFFIX || ''
+  const secretKey = import.meta.env.VITE_TEST_SECRET_KEY
 
   let client: SoraClient
 
@@ -37,10 +37,10 @@ document.addEventListener('DOMContentLoaded', async () => {
     const videoCodecType = getVideoCodecType()
 
     client = new SoraClient(
-      SORA_SIGNALING_URL,
-      SORA_CHANNEL_ID_PREFIX,
-      SORA_CHANNEL_ID_SUFFIX,
-      ACCESS_TOKEN,
+      signalingUrl,
+      channelIdPrefix,
+      channelIdSuffix,
+      secretKey,
       channelName,
       videoCodecType,
     )
@@ -92,7 +92,7 @@ class SoraClient {
     signalingUrl: string,
     channelIdPrefix: string,
     channelIdSuffix: string,
-    accessToken: string,
+    secretKey: string,
     channelName: string,
     videoCodecType: VideoCodecType | undefined,
   ) {
@@ -100,7 +100,7 @@ class SoraClient {
 
     this.channelId = `${channelIdPrefix}${channelName}${channelIdSuffix}`
 
-    this.metadata = { access_token: accessToken }
+    this.metadata = { access_token: secretKey }
     this.options = {}
 
     if (videoCodecType !== undefined) {
diff --git a/e2e-tests/simulcast/main.mts b/e2e-tests/simulcast/main.mts
index b34ed3ea..d195cfb3 100644
--- a/e2e-tests/simulcast/main.mts
+++ b/e2e-tests/simulcast/main.mts
@@ -7,39 +7,39 @@ import Sora, {
 } from 'sora-js-sdk'
 
 document.addEventListener('DOMContentLoaded', () => {
-  const SORA_SIGNALING_URL = import.meta.env.VITE_SORA_SIGNALING_URL
-  const SORA_CHANNEL_ID_PREFIX = import.meta.env.VITE_SORA_CHANNEL_ID_PREFIX || ''
-  const SORA_CHANNEL_ID_SUFFIX = import.meta.env.VITE_SORA_CHANNEL_ID_SUFFIX || ''
-  const ACCESS_TOKEN = import.meta.env.VITE_ACCESS_TOKEN || ''
+  const signalingUrl = import.meta.env.VITE_TEST_SIGNALING_URL
+  const channelIdPrefix = import.meta.env.VITE_TEST_CHANNEL_ID_PREFIX || ''
+  const channelIdSuffix = import.meta.env.VITE_TEST_CHANNEL_ID_SUFFIX || ''
+  const secretKey = import.meta.env.VITE_TEST_SECRET_KEY
 
   const sendonly = new SimulcastSendonlySoraClient(
-    SORA_SIGNALING_URL,
-    SORA_CHANNEL_ID_PREFIX,
-    SORA_CHANNEL_ID_SUFFIX,
-    ACCESS_TOKEN,
+    signalingUrl,
+    channelIdPrefix,
+    channelIdSuffix,
+    secretKey,
   )
 
   const recvonlyR0 = new SimulcastRecvonlySoraClient(
-    SORA_SIGNALING_URL,
-    SORA_CHANNEL_ID_PREFIX,
-    SORA_CHANNEL_ID_SUFFIX,
-    ACCESS_TOKEN,
+    signalingUrl,
+    channelIdPrefix,
+    channelIdSuffix,
+    secretKey,
     'r0',
   )
 
   const recvonlyR1 = new SimulcastRecvonlySoraClient(
-    SORA_SIGNALING_URL,
-    SORA_CHANNEL_ID_PREFIX,
-    SORA_CHANNEL_ID_SUFFIX,
-    ACCESS_TOKEN,
+    signalingUrl,
+    channelIdPrefix,
+    channelIdSuffix,
+    secretKey,
     'r1',
   )
 
   const recvonlyR2 = new SimulcastRecvonlySoraClient(
-    SORA_SIGNALING_URL,
-    SORA_CHANNEL_ID_PREFIX,
-    SORA_CHANNEL_ID_SUFFIX,
-    ACCESS_TOKEN,
+    signalingUrl,
+    channelIdPrefix,
+    channelIdSuffix,
+    secretKey,
     'r2',
   )
 
@@ -104,17 +104,17 @@ class SimulcastSendonlySoraClient {
   private connection: ConnectionPublisher
 
   constructor(
-    signaling_url: string,
-    channel_id_prefix: string,
-    channel_id_suffix: string,
-    access_token: string,
+    signalingUrl: string,
+    channelIdPrefix: string,
+    channelIdSuffix: string,
+    secretKey: string,
   ) {
-    this.channelId = `${channel_id_prefix}simulcast${channel_id_suffix}`
+    this.channelId = `${channelIdPrefix}simulcast${channelIdSuffix}`
 
-    this.sora = Sora.connection(signaling_url, this.debug)
+    this.sora = Sora.connection(signalingUrl, this.debug)
     this.connection = this.sora.sendonly(
       this.channelId,
-      { access_token },
+      { access_token: secretKey },
       { audio: false, video: true, videoCodecType: 'VP8', videoBitRate: 2500, simulcast: true },
     )
 
@@ -167,19 +167,19 @@ class SimulcastRecvonlySoraClient {
   private connection: ConnectionSubscriber
 
   constructor(
-    signaling_url: string,
-    channel_id_prefix: string,
-    channel_id_suffix: string,
-    access_token: string,
+    signalingUrl: string,
+    channelIdPrefix: string,
+    channelIdSuffix: string,
+    secretKey: string,
     rid: SimulcastRid,
   ) {
-    this.channelId = `${channel_id_prefix}simulcast${channel_id_suffix}`
+    this.channelId = `${channelIdPrefix}simulcast${channelIdSuffix}`
     this.rid = rid
 
-    this.sora = Sora.connection(signaling_url, this.debug)
+    this.sora = Sora.connection(signalingUrl, this.debug)
     this.connection = this.sora.recvonly(
       this.channelId,
-      { access_token },
+      { access_token: secretKey },
       { simulcastRid: this.rid, simulcast: true },
     )
 
diff --git a/e2e-tests/spotlight_recvonly/main.mts b/e2e-tests/spotlight_recvonly/main.mts
index 7e00cf48..8f33c5a3 100644
--- a/e2e-tests/spotlight_recvonly/main.mts
+++ b/e2e-tests/spotlight_recvonly/main.mts
@@ -6,17 +6,17 @@ import Sora, {
 
 document.addEventListener('DOMContentLoaded', () => {
   // 環境変数の読み込み
-  const SORA_SIGNALING_URL = import.meta.env.VITE_SORA_SIGNALING_URL
-  const SORA_CHANNEL_ID_PREFIX = import.meta.env.VITE_SORA_CHANNEL_ID_PREFIX || ''
-  const SORA_CHANNEL_ID_SUFFIX = import.meta.env.VITE_SORA_CHANNEL_ID_SUFFIX || ''
-  const ACCESS_TOKEN = import.meta.env.VITE_ACCESS_TOKEN || ''
+  const signalingUrl = import.meta.env.VITE_TEST_SIGNALING_URL
+  const channelIdPrefix = import.meta.env.VITE_TEST_CHANNEL_ID_PREFIX || ''
+  const channelIdSuffix = import.meta.env.VITE_TEST_CHANNEL_ID_SUFFIX || ''
+  const secretKey = import.meta.env.VITE_TEST_SECRET_KEY
 
   // Sora クライアントの初期化
   const client = new SoraClient(
-    SORA_SIGNALING_URL,
-    SORA_CHANNEL_ID_PREFIX,
-    SORA_CHANNEL_ID_SUFFIX,
-    ACCESS_TOKEN,
+    signalingUrl,
+    channelIdPrefix,
+    channelIdSuffix,
+    secretKey,
   )
 
   document.querySelector('#connect')?.addEventListener('click', async () => {
@@ -38,12 +38,12 @@ class SoraClient {
   private connection: ConnectionSubscriber
 
   constructor(
-    signaling_url: string,
-    channel_id_prefix: string,
-    channel_id_suffix: string,
-    access_token: string,
+    signalingUrl: string,
+    channelIdPrefix: string,
+    channelIdSuffix: string,
+    secretKey: string,
   ) {
-    this.sora = Sora.connection(signaling_url, this.debug)
+    this.sora = Sora.connection(signalingUrl, this.debug)
 
     this.options = {
       multistream: true,
@@ -52,9 +52,9 @@ class SoraClient {
     }
 
     // channel_id の生成
-    this.channelId = `${channel_id_prefix}spotlight_sendonly_recvonly${channel_id_suffix}`
+    this.channelId = `${channelIdPrefix}spotlight_recvonly${channelIdSuffix}`
     // access_token を指定する metadata の生成
-    this.metadata = { access_token: access_token }
+    this.metadata = { access_token: secretKey }
 
     this.connection = this.sora.recvonly(this.channelId, this.metadata, this.options)
     this.connection.on('notify', this.onnotify.bind(this))
diff --git a/e2e-tests/spotlight_sendonly/main.mts b/e2e-tests/spotlight_sendonly/main.mts
index bc80563c..c92c6593 100644
--- a/e2e-tests/spotlight_sendonly/main.mts
+++ b/e2e-tests/spotlight_sendonly/main.mts
@@ -5,16 +5,16 @@ import Sora, {
 } from 'sora-js-sdk'
 
 document.addEventListener('DOMContentLoaded', async () => {
-  const SORA_SIGNALING_URL = import.meta.env.VITE_SORA_SIGNALING_URL
-  const SORA_CHANNEL_ID_PREFIX = import.meta.env.VITE_SORA_CHANNEL_ID_PREFIX || ''
-  const SORA_CHANNEL_ID_SUFFIX = import.meta.env.VITE_SORA_CHANNEL_ID_SUFFIX || ''
-  const ACCESS_TOKEN = import.meta.env.VITE_ACCESS_TOKEN || ''
+  const signalingUrl = import.meta.env.VITE_TEST_SIGNALING_URL
+  const channelIdPrefix = import.meta.env.VITE_TEST_CHANNEL_ID_PREFIX || ''
+  const channelIdSuffix = import.meta.env.VITE_TEST_CHANNEL_ID_SUFFIX || ''
+  const secretKey = import.meta.env.VITE_TEST_SECRET_KEY
 
   const client = new SoraClient(
-    SORA_SIGNALING_URL,
-    SORA_CHANNEL_ID_PREFIX,
-    SORA_CHANNEL_ID_SUFFIX,
-    ACCESS_TOKEN,
+    signalingUrl,
+    channelIdPrefix,
+    channelIdSuffix,
+    secretKey,
   )
 
   document.querySelector('#connect')?.addEventListener('click', async () => {
@@ -37,12 +37,12 @@ class SoraClient {
   private connection: ConnectionPublisher
 
   constructor(
-    signaling_url: string,
-    channel_id_prefix: string,
-    channel_id_suffix: string,
-    access_token: string,
+    signalingUrl: string,
+    channelIdPrefix: string,
+    channelIdSuffix: string,
+    secretKey: string,
   ) {
-    this.sora = Sora.connection(signaling_url, this.debug)
+    this.sora = Sora.connection(signalingUrl, this.debug)
 
     this.options = {
       multistream: true,
@@ -51,9 +51,9 @@ class SoraClient {
     }
 
     // channel_id の生成
-    this.channelId = `${channel_id_prefix}spotlight_sendonly_recvonly${channel_id_suffix}`
+    this.channelId = `${channelIdPrefix}spotlight_sendonly_recvonly${channelIdSuffix}`
     // access_token を指定する metadata の生成
-    this.metadata = { access_token: access_token }
+    this.metadata = { access_token: secretKey }
 
     this.connection = this.sora.sendonly(this.channelId, this.metadata, this.options)
     this.connection.on('notify', this.onnotify.bind(this))
diff --git a/e2e-tests/spotlight_sendrecv/main.mts b/e2e-tests/spotlight_sendrecv/main.mts
index e9ee49ca..10d6fef0 100644
--- a/e2e-tests/spotlight_sendrecv/main.mts
+++ b/e2e-tests/spotlight_sendrecv/main.mts
@@ -5,25 +5,25 @@ import Sora, {
 } from 'sora-js-sdk'
 
 document.addEventListener('DOMContentLoaded', async () => {
-  const SORA_SIGNALING_URL = import.meta.env.VITE_SORA_SIGNALING_URL
-  const SORA_CHANNEL_ID_PREFIX = import.meta.env.VITE_SORA_CHANNEL_ID_PREFIX || ''
-  const SORA_CHANNEL_ID_SUFFIX = import.meta.env.VITE_SORA_CHANNEL_ID_SUFFIX || ''
-  const ACCESS_TOKEN = import.meta.env.VITE_ACCESS_TOKEN || ''
+  const signalingUrl = import.meta.env.VITE_TEST_SIGNALING_URL
+  const channelIdPrefix = import.meta.env.VITE_TEST_CHANNEL_ID_PREFIX || ''
+  const channelIdSuffix = import.meta.env.VITE_TEST_CHANNEL_ID_SUFFIX || ''
+  const secretKey = import.meta.env.VITE_TEST_SECRET_KEY
 
   const sendrecv1 = new SoraClient(
     'sendrecv1',
-    SORA_SIGNALING_URL,
-    SORA_CHANNEL_ID_PREFIX,
-    SORA_CHANNEL_ID_SUFFIX,
-    ACCESS_TOKEN,
+    signalingUrl,
+    channelIdPrefix,
+    channelIdSuffix,
+    secretKey,
   )
 
   const sendrecv2 = new SoraClient(
     'sendrecv2',
-    SORA_SIGNALING_URL,
-    SORA_CHANNEL_ID_PREFIX,
-    SORA_CHANNEL_ID_SUFFIX,
-    ACCESS_TOKEN,
+    signalingUrl,
+    channelIdPrefix,
+    channelIdSuffix,
+    secretKey,
   )
 
   document.querySelector('#sendrecv1-connect')?.addEventListener('click', async () => {
@@ -63,13 +63,13 @@ class SoraClient {
     signalingUrl: string,
     channelIdPrefix: string,
     channelIdSuffix: string,
-    accessToken: string,
+    secretKey: string,
   ) {
     this.label = label
 
     this.sora = Sora.connection(signalingUrl, this.debug)
     this.channelId = `${channelIdPrefix}spotlight_sendrecv${channelIdSuffix}`
-    this.metadata = { access_token: accessToken }
+    this.metadata = { access_token: secretKey }
     this.options = {
       audio: true,
       video: true,
diff --git a/e2e-tests/vite-env.d.ts b/e2e-tests/vite-env.d.ts
index e71a892a..c6e893f9 100644
--- a/e2e-tests/vite-env.d.ts
+++ b/e2e-tests/vite-env.d.ts
@@ -1,14 +1,14 @@
 /// <reference types="vite/client" />
 
 interface ImportMetaEnv {
-  VITE_SORA_SIGNALING_URL: string
-  VITE_SORA_API_URL: string
-  VITE_SORA_CHANNEL_ID_PREFIX: string
-  VITE_SORA_CHANNEL_ID_SUFFIX: string
-  VITE_ACCESS_TOKEN: string
+  VITE_TEST_SIGNALING_URL: string
+  VITE_TEST_API_URL: string
+  VITE_TEST_CHANNEL_ID_PREFIX: string
+  VITE_TEST_CHANNEL_ID_SUFFIX: string
+  VITE_TEST_SECRET_KEY: string
 
-  VITE_SORA_WHIP_ENDPOINT_URL: string
-  VITE_SORA_WHEP_ENDPOINT_URL: string
+  VITE_TEST_WHIP_ENDPOINT_URL: string
+  VITE_TEST_WHEP_ENDPOINT_URL: string
 }
 
 interface ImportMeta {
diff --git a/e2e-tests/whep/main.mts b/e2e-tests/whep/main.mts
index 4f08e240..2b59fa69 100644
--- a/e2e-tests/whep/main.mts
+++ b/e2e-tests/whep/main.mts
@@ -1,8 +1,8 @@
 document.addEventListener('DOMContentLoaded', async () => {
-  const endpointUrl = import.meta.env.VITE_SORA_WHEP_ENDPOINT_URL
-  const channelIdPrefix = import.meta.env.VITE_SORA_CHANNEL_ID_PREFIX || ''
-  const channelIdSuffix = import.meta.env.VITE_SORA_CHANNEL_ID_SUFFIX || ''
-  const accessToken = import.meta.env.VITE_ACCESS_TOKEN
+  const endpointUrl = import.meta.env.VITE_TEST_WHEP_ENDPOINT_URL
+  const channelIdPrefix = import.meta.env.VITE_TEST_CHANNEL_ID_PREFIX || ''
+  const channelIdSuffix = import.meta.env.VITE_TEST_CHANNEL_ID_SUFFIX || ''
+  const secretKey = import.meta.env.VITE_TEST_SECRET_KEY
 
   let whepClient: WhepClient | undefined
 
@@ -18,7 +18,7 @@ document.addEventListener('DOMContentLoaded', async () => {
       throw new Error('Video codec type select element not found')
     }
 
-    whepClient = new WhepClient(endpointUrl, channelId, videoCodecTypeElement.value, accessToken)
+    whepClient = new WhepClient(endpointUrl, channelId, videoCodecTypeElement.value, secretKey)
     await whepClient.connect()
   })
 
@@ -38,14 +38,14 @@ class WhepClient {
 
   private channelId: string
   private videoCodecType: string
-  private accessToken: string
+  private secretKey: string
   private pc: RTCPeerConnection | undefined
 
-  constructor(endpointUrl: string, channelId: string, videoCodecType: string, accessToken: string) {
+  constructor(endpointUrl: string, channelId: string, videoCodecType: string, secretKey: string) {
     this.endpointUrl = endpointUrl
     this.channelId = channelId
     this.videoCodecType = videoCodecType
-    this.accessToken = accessToken
+    this.secretKey = secretKey
   }
 
   async connect(): Promise<void> {
@@ -112,7 +112,7 @@ class WhepClient {
     const response = await fetch(whepEndpointUrl, {
       method: 'POST',
       headers: {
-        Authorization: `Bearer ${this.accessToken}`,
+        Authorization: `Bearer ${this.secretKey}`,
         'Content-Type': 'application/sdp',
       },
       body: offer.sdp,
@@ -165,7 +165,7 @@ class WhepClient {
     const response = await fetch(this.resourceUrl, {
       method: 'DELETE',
       headers: {
-        Authorization: `Bearer ${this.accessToken}`,
+        Authorization: `Bearer ${this.secretKey}`,
       },
     })
 
diff --git a/e2e-tests/whip/main.mts b/e2e-tests/whip/main.mts
index bc174d2c..06bec2a5 100644
--- a/e2e-tests/whip/main.mts
+++ b/e2e-tests/whip/main.mts
@@ -1,8 +1,8 @@
 document.addEventListener('DOMContentLoaded', async () => {
-  const endpointUrl = import.meta.env.VITE_SORA_WHIP_ENDPOINT_URL
-  const channelIdPrefix = import.meta.env.VITE_SORA_CHANNEL_ID_PREFIX || ''
-  const channelIdSuffix = import.meta.env.VITE_SORA_CHANNEL_ID_SUFFIX || ''
-  const accessToken = import.meta.env.VITE_ACCESS_TOKEN
+  const endpointUrl = import.meta.env.VITE_TEST_WHIP_ENDPOINT_URL
+  const channelIdPrefix = import.meta.env.VITE_TEST_CHANNEL_ID_PREFIX || ''
+  const channelIdSuffix = import.meta.env.VITE_TEST_CHANNEL_ID_SUFFIX || ''
+  const secretKey = import.meta.env.VITE_TEST_SECRET_KEY
 
   let whipClient: WhipClient | undefined
 
@@ -18,7 +18,7 @@ document.addEventListener('DOMContentLoaded', async () => {
       throw new Error('Video codec type select element not found')
     }
 
-    whipClient = new WhipClient(endpointUrl, channelId, videoCodecTypeElement.value, accessToken)
+    whipClient = new WhipClient(endpointUrl, channelId, videoCodecTypeElement.value, secretKey)
 
     const stream = await navigator.mediaDevices.getUserMedia({
       video: true,
@@ -58,16 +58,16 @@ class WhipClient {
 
   private videoCodecType: string
 
-  private accessToken: string
+  private secretKey: string
   private pc: RTCPeerConnection | undefined
 
   private stream: MediaStream | undefined
 
-  constructor(endpointUrl: string, channelId: string, videoCodecType: string, accessToken: string) {
+  constructor(endpointUrl: string, channelId: string, videoCodecType: string, secretKey: string) {
     this.endpointUrl = endpointUrl
     this.channelId = channelId
     this.videoCodecType = videoCodecType
-    this.accessToken = accessToken
+    this.secretKey = secretKey
   }
 
   async connect(stream: MediaStream, channelId: string): Promise<void> {
@@ -137,7 +137,7 @@ class WhipClient {
       method: 'POST',
       headers: {
         // 認証は Bearer Token を利用する
-        Authorization: `Bearer ${this.accessToken}`,
+        Authorization: `Bearer ${this.secretKey}`,
         // application/sdp を指定する
         'Content-Type': 'application/sdp',
       },
@@ -196,7 +196,7 @@ class WhipClient {
     const response = await fetch(this.resourceUrl, {
       method: 'DELETE',
       headers: {
-        Authorization: `Bearer ${this.accessToken}`,
+        Authorization: `Bearer ${this.secretKey}`,
       },
     })