diff --git a/README.md b/README.md
index 2c1d241..d0539f8 100644
--- a/README.md
+++ b/README.md
@@ -111,6 +111,15 @@ Here is the demo to get you started; you can get more information in the [SDK do
 
    ### For Onchain Storage
 
+   To use certain Onchain Storage features (upload, payment, minting), you will need to set up the web3 environment first.
+
+   - Setup Web3
+
+   ```js
+   await mcs.setupWeb3(<PRIVATE_KEY>, <RPC_URL>)
+   console.log(mcs.web3Initialized) // true
+   ```
+
    - Upload File to Onchain storage
 
    ```js
diff --git a/sdk-test/mcs.test.js b/sdk-test/mcs.test.js
index ea9ac8b..0ce547a 100644
--- a/sdk-test/mcs.test.js
+++ b/sdk-test/mcs.test.js
@@ -36,9 +36,8 @@ describe('MCS SDK', function () {
 
   it('Should initialize SDK', async () => {
     mcs = await mcsSDK.initialize({
-      accessToken: process.env.CALI_ACCESS_TOKEN,
-      apiKey: process.env.CALI_API_KEY,
-      chainName: 'polygon.mumbai',
+      accessToken: process.env.ACCESS_TOKEN,
+      apiKey: process.env.API_KEY,
     })
 
     expect(mcs)
@@ -46,7 +45,7 @@ describe('MCS SDK', function () {
 
   it('Should setup web3', async () => {
     expect(mcs.walletAddress).to.be.undefined
-    await mcs.setupWeb3(process.env.PRIVATE_KEY, process.env.RPC_URL)
+    await mcs.setupWeb3(process.env.PRIVATE_KEY)
     expect(mcs.walletAddress)
   })
 
diff --git a/sdk/README.md b/sdk/README.md
index e2e5a6c..d0539f8 100644
--- a/sdk/README.md
+++ b/sdk/README.md
@@ -107,8 +107,19 @@ Here is the demo to get you started; you can get more information in the [SDK do
 
    Optionally, you can pass `privateKey` to use the onChain Storage upload and payment functions and pass `rpcUrl` if you wish to use your own RPC URL (this SDK uses https://polygon-rpc.com/ by default).
 
+   This SDK is also compatiable with our calibration environment on the Mumbai testnet. Use `chainName: 'polygon.mumbai'` and generate a new API KEY from [calibration-mcs.filswan.com/](https://calibration-mcs.filswan.com/)
+
    ### For Onchain Storage
 
+   To use certain Onchain Storage features (upload, payment, minting), you will need to set up the web3 environment first.
+
+   - Setup Web3
+
+   ```js
+   await mcs.setupWeb3(<PRIVATE_KEY>, <RPC_URL>)
+   console.log(mcs.web3Initialized) // true
+   ```
+
    - Upload File to Onchain storage
 
    ```js