diff --git a/example.env b/example.env
index 7810ef5..e70172d 100644
--- a/example.env
+++ b/example.env
@@ -11,6 +11,10 @@ REDIS_URL=redis://redis/0
 # REDIS_URL=localhost
 
 CHAIN_ID=100
+# RPC_URL=https://rpc.xdaichain.com/tornado
+
+# ORACLE_RPC_URL should always point to the mainnet
+# ORACLE_RPC_URL=https://mainnet.infura.io
 
 REWARD_ADDRESS=
 
diff --git a/src/config/configuration.ts b/src/config/configuration.ts
index 123aec1..cbd88cb 100644
--- a/src/config/configuration.ts
+++ b/src/config/configuration.ts
@@ -1,6 +1,9 @@
 import { Wallet } from 'ethers';
+
+import { ChainId } from '@/types';
+
 import { toWei } from '@/utilities';
-import { NETWORKS_INFO } from '@/constants';
+import { NETWORKS_INFO, RPC_LIST } from '@/constants';
 
 import { version } from '../../package.json';
 
@@ -13,6 +16,8 @@ export const baseConfig = () => ({
       transfer: toWei(process.env.TRANSFER_SERVICE_FEE).toString(),
       withdrawal: Number(process.env.WITHDRAWAL_SERVICE_FEE),
     },
+    rpcUrl: process.env.RPC_URL || RPC_LIST[process.env.CHAIN_ID],
+    oracleRpcUrl: process.env.ORACLE_RPC_URL || RPC_LIST[ChainId.MAINNET],
     rewardAddress: process.env.REWARD_ADDRESS,
     address: new Wallet(process.env.PRIVATE_KEY).address,
     gasLimit: NETWORKS_INFO[process.env.CHAIN_ID].gasLimit,
diff --git a/src/config/txManager.config.ts b/src/config/txManager.config.ts
index 45db7b3..f37a8ae 100644
--- a/src/config/txManager.config.ts
+++ b/src/config/txManager.config.ts
@@ -3,7 +3,7 @@ import { RPC_LIST } from '@/constants';
 
 export default registerAs('txManager', () => ({
   privateKey: process.env.PRIVATE_KEY,
-  rpcUrl: RPC_LIST[process.env.CHAIN_ID],
+  rpcUrl: process.env.RPC_URL || RPC_LIST[process.env.CHAIN_ID],
   config: {
     THROW_ON_REVERT: false,
     CONFIRMATIONS: process.env.CONFIRMATIONS,
diff --git a/src/constants/contracts.ts b/src/constants/contracts.ts
index 05e6a19..ea1d5b9 100644
--- a/src/constants/contracts.ts
+++ b/src/constants/contracts.ts
@@ -6,9 +6,7 @@ export const CONTRACT_NETWORKS: { [chainId in ChainId]: string } = {
 };
 
 export const RPC_LIST: { [chainId in ChainId]: string } = {
-  [ChainId.MAINNET]: 'https://mainnet.infura.io/v3/eb6a84e726614079948e0b1efce5baa5',
-  [ChainId.GOERLI]: 'https://eth-goerli.alchemyapi.io/v2/hlSj0EqPUuLGyyTExs6UqFKnXDrc_eOh',
-  [ChainId.OPTIMISM]: 'https://optimism-kovan.infura.io/v3/8f786b96d16046b78e0287fa61c6fcf8',
+  [ChainId.MAINNET]: 'https://api.mycryptoapi.com/eth',
   [ChainId.XDAI]: 'https://rpc.xdaichain.com/tornado',
 };
 
diff --git a/src/constants/variables.ts b/src/constants/variables.ts
index b7322f4..b9d263b 100644
--- a/src/constants/variables.ts
+++ b/src/constants/variables.ts
@@ -2,21 +2,6 @@ import { BigNumber } from 'ethers';
 import { ChainId } from '@/types';
 
 const NETWORKS_INFO: { [chainId in ChainId] } = {
-  [ChainId.MAINNET]: {
-    symbol: 'ETH',
-    gasLimit: BigNumber.from(1500000),
-    minimumBalance: '0.5',
-  },
-  [ChainId.GOERLI]: {
-    symbol: 'gETH',
-    gasLimit: BigNumber.from(1500000),
-    minimumBalance: '0.5',
-  },
-  [ChainId.OPTIMISM]: {
-    symbol: 'ETH',
-    gasLimit: '',
-    minimumBalance: '0.5',
-  },
   [ChainId.XDAI]: {
     symbol: 'xDAI',
     gasLimit: BigNumber.from(2000000),
diff --git a/src/modules/queue/transaction.processor.ts b/src/modules/queue/transaction.processor.ts
index 1b1efce..f4375ba 100644
--- a/src/modules/queue/transaction.processor.ts
+++ b/src/modules/queue/transaction.processor.ts
@@ -7,8 +7,8 @@ import { ConfigService } from '@nestjs/config';
 import { InjectQueue, Process, Processor, OnQueueActive, OnQueueCompleted, OnQueueFailed } from '@nestjs/bull';
 
 import { Transaction } from '@/types';
+import { CONTRACT_ERRORS, jobStatus } from '@/constants';
 import { getToIntegerMultiplier, toWei } from '@/utilities';
-import { numbers, CONTRACT_ERRORS, jobStatus } from '@/constants';
 import { GasPriceService, ProviderService, OffchainPriceService } from '@/services';
 
 import txMangerConfig from '@/config/txManager.config';
diff --git a/src/services/gas-price.service.ts b/src/services/gas-price.service.ts
index a72d47c..a7aa397 100644
--- a/src/services/gas-price.service.ts
+++ b/src/services/gas-price.service.ts
@@ -5,7 +5,6 @@ import { BigNumber } from 'ethers';
 import { GasPriceOracle } from 'gas-price-oracle';
 
 import { toWei } from '@/utilities';
-import { RPC_LIST } from '@/constants';
 
 const bump = (gas: BigNumber, percent: number) => gas.mul(percent).div(100).toHexString();
 const gweiToWei = (value: number) => toWei(String(value), 'gwei');
@@ -20,15 +19,17 @@ const percentBump = {
 @Injectable()
 export class GasPriceService {
   private readonly chainId: number;
+  private readonly rpcUrl: string;
 
   constructor(private configService: ConfigService) {
     this.chainId = this.configService.get<number>('base.chainId');
+    this.rpcUrl = this.configService.get('base.rpcUrl');
   }
 
   async getGasPrice() {
     const instance = new GasPriceOracle({
       chainId: this.chainId,
-      defaultRpc: RPC_LIST[this.chainId],
+      defaultRpc: this.rpcUrl,
     });
 
     const result = await instance.gasPrices();
diff --git a/src/services/offchain-price.service.ts b/src/services/offchain-price.service.ts
index 53ac76c..44554bc 100644
--- a/src/services/offchain-price.service.ts
+++ b/src/services/offchain-price.service.ts
@@ -11,9 +11,11 @@ import { toWei } from '@/utilities';
 @Injectable()
 export class OffchainPriceService {
   private readonly chainId: number;
+  private readonly rpcUrl: string;
 
   constructor(private configService: ConfigService, private providerService: ProviderService) {
     this.chainId = ChainId.MAINNET;
+    this.rpcUrl = this.configService.get('base.oracleRpcUrl');
   }
 
   async getDaiEthPrice() {
diff --git a/src/services/provider.service.ts b/src/services/provider.service.ts
index acabb77..f074db7 100644
--- a/src/services/provider.service.ts
+++ b/src/services/provider.service.ts
@@ -3,25 +3,27 @@ import { Injectable } from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
 
 import { ChainId } from '@/types';
-import { CONTRACT_NETWORKS, OFF_CHAIN_ORACLE, RPC_LIST } from '@/constants';
+import { CONTRACT_NETWORKS, OFF_CHAIN_ORACLE } from '@/constants';
 import { TornadoPool__factory as TornadoPool, OffchainOracle__factory as OffchainOracle } from '@/artifacts';
 
 @Injectable()
 export class ProviderService {
   private readonly chainId: number;
+  private readonly rpcUrl: string;
   private readonly providers: Map<ChainId, ethers.providers.StaticJsonRpcProvider> = new Map();
 
   constructor(private configService: ConfigService) {
     this.chainId = this.configService.get<number>('base.chainId');
+    this.rpcUrl = this.configService.get('base.rpcUrl');
   }
 
   get provider() {
-    return this.getProvider(this.chainId);
+    return this.getProvider(this.chainId, this.rpcUrl);
   }
 
-  getProvider(chainId: ChainId) {
+  getProvider(chainId: ChainId, rpcUrl: string) {
     if (!this.providers.has(chainId)) {
-      this.providers.set(chainId, new ethers.providers.StaticJsonRpcProvider(RPC_LIST[chainId], chainId));
+      this.providers.set(chainId, new ethers.providers.StaticJsonRpcProvider(rpcUrl, chainId));
     }
 
     // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
@@ -33,7 +35,8 @@ export class ProviderService {
   }
 
   getOffChainOracle() {
-    const provider = this.getProvider(ChainId.MAINNET);
+    const oracleRpcUrl = this.configService.get('base.oracleRpcUrl');
+    const provider = this.getProvider(ChainId.MAINNET, oracleRpcUrl);
     return OffchainOracle.connect(OFF_CHAIN_ORACLE, provider);
   }
 
diff --git a/src/types/index.ts b/src/types/index.ts
index ccb5070..cba2d55 100644
--- a/src/types/index.ts
+++ b/src/types/index.ts
@@ -2,14 +2,10 @@ import { BigNumberish } from 'ethers';
 import { BytesLike } from '@ethersproject/bytes';
 
 const MAINNET_CHAIN_ID = 1;
-const GOERLI_CHAIN_ID = 5;
-const OPTIMISM_CHAIN_ID = 69;
 const XDAI_CHAIN_ID = 100;
 
 export enum ChainId {
   MAINNET = MAINNET_CHAIN_ID,
-  GOERLI = GOERLI_CHAIN_ID,
-  OPTIMISM = OPTIMISM_CHAIN_ID,
   XDAI = XDAI_CHAIN_ID,
 }