diff --git a/package-lock.json b/package-lock.json
index 1ec569b..ac854ae 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@itheum/sdk-mx-data-nft",
-  "version": "2.2.0",
+  "version": "2.3.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@itheum/sdk-mx-data-nft",
-      "version": "2.2.0",
+      "version": "2.3.0",
       "license": "GPL-3.0-only",
       "dependencies": {
         "@multiversx/sdk-core": "12.11.0",
diff --git a/package.json b/package.json
index d42af6b..43b4867 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@itheum/sdk-mx-data-nft",
-  "version": "2.2.0",
+  "version": "2.3.0",
   "description": "SDK for Itheum's Data NFT Technology on MultiversX Blockchain",
   "main": "out/index.js",
   "types": "out/index.d.js",
diff --git a/src/abis/data-nft-lease.abi.json b/src/abis/data-nft-lease.abi.json
index 72d5db2..ae983b9 100644
--- a/src/abis/data-nft-lease.abi.json
+++ b/src/abis/data-nft-lease.abi.json
@@ -2,10 +2,10 @@
     "buildInfo": {
         "rustc": {
             "version": "1.71.0-nightly",
-            "commitHash": "7f94b314cead7059a71a265a8b64905ef2511796",
-            "commitDate": "2023-04-23",
+            "commitHash": "a2b1646c597329d0a25efa3889b66650f65de1de",
+            "commitDate": "2023-05-25",
             "channel": "Nightly",
-            "short": "rustc 1.71.0-nightly (7f94b314c 2023-04-23)"
+            "short": "rustc 1.71.0-nightly (a2b1646c5 2023-05-25)"
         },
         "contractCrate": {
             "name": "data-nft-lease",
@@ -13,15 +13,15 @@
         },
         "framework": {
             "name": "multiversx-sc",
-            "version": "0.43.2"
+            "version": "0.43.5"
         }
     },
     "name": "DataNftMint",
     "constructor": {
         "inputs": [
             {
-                "name": "administrator",
-                "type": "optional<Address>",
+                "name": "setup_values",
+                "type": "optional<multi<Address,Address>>",
                 "multi_arg": true
             }
         ],
@@ -196,7 +196,7 @@
             "outputs": []
         },
         {
-            "name": "setAntiSpamTax",
+            "name": "setMintTaxFee",
             "mutability": "mutable",
             "inputs": [
                 {
@@ -294,26 +294,6 @@
             ],
             "outputs": []
         },
-        {
-            "name": "setTax",
-            "onlyOwner": true,
-            "mutability": "mutable",
-            "inputs": [
-                {
-                    "name": "itheum_address",
-                    "type": "Address"
-                },
-                {
-                    "name": "tax",
-                    "type": "BigUint"
-                }
-            ],
-            "outputs": [
-                {
-                    "type": "BigUint"
-                }
-            ]
-        },
         {
             "name": "setClaimsAddress",
             "mutability": "mutable",
@@ -375,6 +355,16 @@
                 }
             ]
         },
+        {
+            "name": "getTaxTokens",
+            "mutability": "readonly",
+            "inputs": [],
+            "outputs": [
+                {
+                    "type": "EgldOrEsdtTokenIdentifier"
+                }
+            ]
+        },
         {
             "name": "getTaxIsRequired",
             "mutability": "readonly",
@@ -561,17 +551,7 @@
             ]
         },
         {
-            "name": "getItheumTax",
-            "mutability": "readonly",
-            "inputs": [],
-            "outputs": [
-                {
-                    "type": "BigUint"
-                }
-            ]
-        },
-        {
-            "name": "getItheumTaxAddress",
+            "name": "getRoyaltiesAddress",
             "mutability": "readonly",
             "inputs": [],
             "outputs": [
@@ -581,7 +561,7 @@
             ]
         },
         {
-            "name": "getClaimsAddress",
+            "name": "getFactoryAddress",
             "mutability": "readonly",
             "inputs": [],
             "outputs": [
@@ -697,6 +677,67 @@
                 }
             ],
             "outputs": []
+        },
+        {
+            "name": "check_claims",
+            "mutability": "mutable",
+            "inputs": [
+                {
+                    "name": "address_to_check",
+                    "type": "Address"
+                }
+            ],
+            "outputs": [
+                {
+                    "type": "BigUint"
+                }
+            ]
+        },
+        {
+            "name": "get_claims",
+            "mutability": "mutable",
+            "inputs": [],
+            "outputs": []
+        },
+        {
+            "name": "factory_treasury_address",
+            "mutability": "mutable",
+            "inputs": [],
+            "outputs": [
+                {
+                    "type": "Address"
+                }
+            ]
+        },
+        {
+            "name": "factory_tax",
+            "mutability": "mutable",
+            "inputs": [],
+            "outputs": [
+                {
+                    "type": "BigUint"
+                }
+            ]
+        },
+        {
+            "name": "factory_claims_contract_address",
+            "mutability": "mutable",
+            "inputs": [],
+            "outputs": [
+                {
+                    "type": "Address"
+                }
+            ]
+        },
+        {
+            "name": "factory_claims_token_identifier",
+            "mutability": "mutable",
+            "inputs": [],
+            "outputs": [
+                {
+                    "type": "TokenIdentifier"
+                }
+            ]
         }
     ],
     "events": [
@@ -816,7 +857,7 @@
             ]
         },
         {
-            "identifier": "antiSpamTaxSet",
+            "identifier": "mintTaxFee",
             "inputs": [
                 {
                     "name": "token",
@@ -860,6 +901,16 @@
                 }
             ]
         },
+        {
+            "identifier": "setFactoryAddress",
+            "inputs": [
+                {
+                    "name": "factory_address",
+                    "type": "Address",
+                    "indexed": true
+                }
+            ]
+        },
         {
             "identifier": "pauseCollection",
             "inputs": [
@@ -1039,6 +1090,10 @@
                 {
                     "name": "administrator_address",
                     "type": "Address"
+                },
+                {
+                    "name": "tax_token",
+                    "type": "EgldOrEsdtTokenIdentifier"
                 }
             ]
         },
diff --git a/src/datanft.ts b/src/datanft.ts
index c5d2771..85f46de 100644
--- a/src/datanft.ts
+++ b/src/datanft.ts
@@ -451,7 +451,9 @@ export class DataNft {
       mvxNativeAuthOriginsToBase64 = mvxNativeAuthOriginsToBase64
         .trim()
         .replaceAll(' ', ''); // remove all spaces
-      mvxNativeAuthOriginsToBase64 = window.btoa(mvxNativeAuthOriginsToBase64); // convert to base64
+      mvxNativeAuthOriginsToBase64 = Buffer.from(
+        mvxNativeAuthOriginsToBase64
+      ).toString('base64');
 
       // construct the api url
       let url = `${this.dataMarshal}/access?NFTId=${
diff --git a/src/interfaces.ts b/src/interfaces.ts
index 0d20b4b..6b8bb2c 100644
--- a/src/interfaces.ts
+++ b/src/interfaces.ts
@@ -105,4 +105,5 @@ export interface ContractConfiguration {
   rolesAreSet: boolean;
   claimsAddress: string;
   administratorAddress: string;
+  taxToken: string;
 }
diff --git a/src/minter.ts b/src/minter.ts
index 49cecc0..b2efbfc 100644
--- a/src/minter.ts
+++ b/src/minter.ts
@@ -254,7 +254,7 @@ export abstract class Minter {
         .setFunction(new ContractFunction('setLocalRoles'))
         .build(),
       receiver: this.contract.getAddress(),
-      gasLimit: 90000000,
+      gasLimit: 100000000,
       sender: senderAddress,
       chainID: this.chainID
     });
diff --git a/src/nft-minter.ts b/src/nft-minter.ts
index ad8d1e3..949d549 100644
--- a/src/nft-minter.ts
+++ b/src/nft-minter.ts
@@ -90,7 +90,7 @@ export class NftMinter extends Minter {
       value: 50000000000000000,
       data: data,
       receiver: this.contract.getAddress(),
-      gasLimit: 50000000,
+      gasLimit: 100000000,
       sender: senderAddress,
       chainID: this.chainID
     });
@@ -453,7 +453,8 @@ export class NftMinter extends Minter {
         isContractPaused: returnValue?.is_paused as boolean,
         rolesAreSet: returnValue?.roles_are_set as boolean,
         claimsAddress: returnValue?.claims_address.toString(),
-        administratorAddress: returnValue?.administrator_address.toString()
+        administratorAddress: returnValue?.administrator_address.toString(),
+        taxToken: returnValue?.tax_token.toString()
       };
       return contractConfiguration;
     } else {