diff --git a/libs/remix-simulator/src/methods/accounts.ts b/libs/remix-simulator/src/methods/accounts.ts
index 6c99565455..316ccf2b26 100644
--- a/libs/remix-simulator/src/methods/accounts.ts
+++ b/libs/remix-simulator/src/methods/accounts.ts
@@ -13,9 +13,11 @@ export class Web3Accounts {
   accounts: Record<string, AccountType>
   accountsKeys: Record<string, string>
   vmContext
+  options
 
-  constructor (vmContext) {
+  constructor (vmContext, options) {
     this.vmContext = vmContext
+    this.options = options
     // TODO: make it random and/or use remix-libs
 
     this.accounts = {}
@@ -92,6 +94,8 @@ export class Web3Accounts {
   eth_getBalance (payload, cb) {
     const address = payload.params[0]
     this.vmContext.vm().stateManager.getAccount(Address.fromString(address)).then((account) => {
+      if (!account) return cb(null, toBigInt(0).toString(10))
+      if (!account.balance) return cb(null, toBigInt(0).toString(10))
       cb(null, toBigInt(account.balance).toString(10))
     }).catch((error) => {
       cb(error)
@@ -114,7 +118,7 @@ export class Web3Accounts {
   }
 
   eth_chainId (_payload, cb) {
-    return cb(null, '0x539') // 0x539 is hex of 1337
+    return cb(null, this.options.chainId || '0x539') // 0x539 is hex of 1337
   }
 
   eth_signTypedData_v4 (payload, cb) {
diff --git a/libs/remix-simulator/src/methods/miner.ts b/libs/remix-simulator/src/methods/miner.ts
index 55f8767111..2d8994c2bf 100644
--- a/libs/remix-simulator/src/methods/miner.ts
+++ b/libs/remix-simulator/src/methods/miner.ts
@@ -12,7 +12,7 @@ export class Miner {
     }
   }
 
-  miner_start (payload, cb) {}
+  miner_start (payload, cb) { cb() }
 
-  miner_stop (payload, cb) {}
+  miner_stop (payload, cb) { cb()}
 }
diff --git a/libs/remix-simulator/src/methods/net.ts b/libs/remix-simulator/src/methods/net.ts
index 1a064719f4..3c9c7a612c 100644
--- a/libs/remix-simulator/src/methods/net.ts
+++ b/libs/remix-simulator/src/methods/net.ts
@@ -1,20 +1,24 @@
-export function methods (): Record<string, unknown> {
-  return {
-    net_version: net_version,
-    net_listening: net_listening,
-    net_peerCount: net_peerCount
+export class Net {
+  vmContext
+  options
+
+  constructor (vmContext, options) {
+    this.vmContext = vmContext
+    this.options = options
   }
-}
 
-export function net_version (payload, cb): void {
-  // should be configured networkId
-  cb(null, 1337)
-}
+  methods () {
+    return {
+      net_version: this.net_version.bind(this),
+      net_listening: this.net_listening.bind(this),
+      net_peerCount: this.net_peerCount.bind(this)
+    }
+  }
 
-export function net_listening (payload, cb): void {
-  cb(null, true)
-}
+  net_version (payload, cb) { cb(null, 1337) }
+
+  net_listening (payload, cb) { cb(null, true)}
 
-export function net_peerCount (payload, cb): void {
-  cb(null, 0)
+  net_peerCount (payload, cb) { cb(null, 0)}
 }
+
diff --git a/libs/remix-simulator/src/provider.ts b/libs/remix-simulator/src/provider.ts
index af9233263a..c28257018e 100644
--- a/libs/remix-simulator/src/provider.ts
+++ b/libs/remix-simulator/src/provider.ts
@@ -6,7 +6,7 @@ import merge from 'merge'
 import { Web3Accounts } from './methods/accounts'
 import { Filters } from './methods/filters'
 import { methods as miscMethods } from './methods/misc'
-import { methods as netMethods } from './methods/net'
+import { Net } from './methods/net'
 import { Transactions } from './methods/transactions'
 import { Miner } from './methods/miner'
 import { Debug } from './methods/debug'
@@ -31,6 +31,7 @@ export type JSONRPCResponseCallback = (err: Error, result?: JSONRPCResponsePaylo
 export type State = Record<string, string>
 
 export type ProviderOptions = {
+  chainId?: number
   fork?: string,
   nodeUrl?: string,
   blockNumber?: number | 'latest',
@@ -55,7 +56,7 @@ export class Provider {
     this.connected = true
     this.vmContext = new VMContext(options['fork'], options['nodeUrl'], options['blockNumber'], options['stateDb'], options['blocks'])
 
-    this.Accounts = new Web3Accounts(this.vmContext)
+    this.Accounts = new Web3Accounts(this.vmContext, options)
     this.Transactions = new Transactions(this.vmContext)
 
     this.methods = {}
@@ -63,7 +64,7 @@ export class Provider {
     this.methods = merge(this.methods, (new Blocks(this.vmContext, options)).methods())
     this.methods = merge(this.methods, miscMethods())
     this.methods = merge(this.methods, (new Filters(this.vmContext)).methods())
-    this.methods = merge(this.methods, netMethods())
+    this.methods = merge(this.methods, (new Net(this.vmContext, options)).methods())
     this.methods = merge(this.methods, this.Transactions.methods())
     this.methods = merge(this.methods, (new Debug(this.vmContext)).methods())
     this.methods = merge(this.methods, (new Miner(this.vmContext)).methods())