diff --git a/.github/workflows/bundle-and-deploy.yml b/.github/workflows/bundle-and-deploy.yml
index 37af0101..b5278d7d 100644
--- a/.github/workflows/bundle-and-deploy.yml
+++ b/.github/workflows/bundle-and-deploy.yml
@@ -27,6 +27,14 @@ jobs:
           cache: 'yarn'
       - run: yarn install --frozen-lockfile
       - run: yarn bundle
+      - env:
+          ETH_PROVIDER_URL_MAINNET: ${{ secrets.ETH_PROVIDER_URL_MAINNET }}
+          ETH_PROVIDER_URL_TESTNET: ${{ secrets.ETH_PROVIDER_URL_TESTNET }}
+          BNB_PROVIDER_URL_MAINNET: ${{ secrets.BNB_PROVIDER_URL_MAINNET }}
+          BNB_PROVIDER_URL_TESTNET: ${{ secrets.BNB_PROVIDER_URL_TESTNET }}
+          BTC_PROVIDER_URL_MAINNET: ${{ secrets.BTC_PROVIDER_URL_MAINNET }}
+          BTC_PROVIDER_URL_TESTNET: ${{ secrets.BTC_PROVIDER_URL_TESTNET }}
+
       - uses: google-github-actions/setup-gcloud@v1
       - uses: google-github-actions/auth@v1
         with:
diff --git a/packages/near-fast-auth-signer/README.md b/packages/near-fast-auth-signer/README.md
index edf49c4b..a1f2e911 100644
--- a/packages/near-fast-auth-signer/README.md
+++ b/packages/near-fast-auth-signer/README.md
@@ -48,3 +48,16 @@ yarn start
 - Navigates to the appropate UI route (/login)
 - Returns true if login was successful
 - Throws error if failed or cancelled by user
+
+
+### Provider URLs
+To configure provider urls, configure following environment variables. For local development, simply create `.env` on root directory and configure environment variables.
+
+```bash
+ETH_PROVIDER_URL_MAINNET=''
+ETH_PROVIDER_URL_TESTNET=''
+BNB_PROVIDER_URL_MAINNET=''
+BNB_PROVIDER_URL_TESTNET=''
+BTC_PROVIDER_URL_MAINNET=''
+BTC_PROVIDER_URL_TESTNET=''
+```
\ No newline at end of file
diff --git a/packages/near-fast-auth-signer/src/components/SignMultichain/utils.ts b/packages/near-fast-auth-signer/src/components/SignMultichain/utils.ts
index ce8b1ae3..d3d6742d 100644
--- a/packages/near-fast-auth-signer/src/components/SignMultichain/utils.ts
+++ b/packages/near-fast-auth-signer/src/components/SignMultichain/utils.ts
@@ -72,15 +72,15 @@ const FAST_AUTH_RELAYER_URL = 'https://near-relayer-testnet.stage.api.pagoda.co'
 
 const CHAIN_CONFIG: ChainMap = {
   ETH: {
-    providerUrl: 'https://sepolia.infura.io/v3/6df51ccaa17f4e078325b5050da5a2dd',
+    providerUrl: environment.NETWORK_ID === 'mainnet' ? process.env.ETH_PROVIDER_URL_MAINNET : process.env.ETH_PROVIDER_URL_TESTNET,
   },
   BNB: {
-    providerUrl: 'https://data-seed-prebsc-1-s1.bnbchain.org:8545',
+    providerUrl: environment.NETWORK_ID === 'mainnet' ? process.env.BNB_PROVIDER_URL_MAINNET : process.env.BNB_PROVIDER_URL_TESTNET,
   },
   BTC: {
-    networkType: 'testnet',
+    networkType: environment.NETWORK_ID || 'testnet',
     // API ref: https://github.com/Blockstream/esplora/blob/master/API.md
-    providerUrl: 'https://blockstream.info/testnet/api/',
+    providerUrl: environment.NETWORK_ID === 'mainnet' ? process.env.BTC_PROVIDER_URL_MAINNET : process.env.BTC_PROVIDER_URL_TESTNET,
   },
 };