diff --git a/packages/massa-web3/src/experimental/jsonRPCClient.ts b/packages/massa-web3/src/experimental/jsonRPCClient.ts
new file mode 100644
index 00000000..868aabae
--- /dev/null
+++ b/packages/massa-web3/src/experimental/jsonRPCClient.ts
@@ -0,0 +1,13 @@
+import { PublicAPI, Transport } from './publicAPI'
+
+export class JsonRPCClient extends PublicAPI {
+  constructor(url: string) {
+    const u = new URL(url)
+    const protocol = u.protocol === 'https:' ? Transport.https : Transport.http
+    let port = parseInt(u.port)
+    if (isNaN(port)) {
+      port = protocol === Transport.https ? 443 : 80
+    }
+    super(protocol, u.hostname, port, u.pathname)
+  }
+}
diff --git a/packages/massa-web3/src/experimental/publicAPI.ts b/packages/massa-web3/src/experimental/publicAPI.ts
index 63045b34..d8d3096b 100644
--- a/packages/massa-web3/src/experimental/publicAPI.ts
+++ b/packages/massa-web3/src/experimental/publicAPI.ts
@@ -50,10 +50,10 @@ export class PublicAPI {
     this.connector = new MassaOpenRPCSpecification({
       transport: {
         type: transport,
-        host: host,
-        port: port,
-        path: path,
-        protocol: protocol,
+        host,
+        port,
+        path,
+        protocol,
       },
     } as Options)
   }
diff --git a/packages/massa-web3/test/experimental/integration/accountOperation.spec.ts b/packages/massa-web3/test/experimental/integration/accountOperation.spec.ts
index 012c78b0..b2b97f7d 100644
--- a/packages/massa-web3/test/experimental/integration/accountOperation.spec.ts
+++ b/packages/massa-web3/test/experimental/integration/accountOperation.spec.ts
@@ -1,18 +1,15 @@
 import { Account } from '../../../src/experimental/account'
 import { AccountOperation } from '../../../src/experimental/accountOperation'
 import { OperationStatus } from '../../../src/experimental/basicElements'
-import { PublicAPI, Transport } from '../../../src/experimental/publicAPI'
+import { JsonRPCClient } from '../../../src/experimental/jsonRPCClient'
 import 'dotenv/config'
 
 describe('Basic use cases', () => {
   test('AccountOperation - transfer', async () => {
     const account = await Account.fromEnv()
-    const client = new PublicAPI(
-      Transport.https,
-      'buildnet.massa.net',
-      443,
-      '/api/v2'
-    )
+
+    const client = new JsonRPCClient('https://buildnet.massa.net/api/v2')
+
     const accountOperation = new AccountOperation(account, client)
     const transfer = await accountOperation.transfer(
       'AU1wN8rn4SkwYSTDF3dHFY4U28KtsqKL1NnEjDZhHnHEy6cEQm53',
diff --git a/packages/massa-web3/test/experimental/integration/publicAPI.spec.ts b/packages/massa-web3/test/experimental/integration/publicAPI.spec.ts
index b975d2c1..de6deb05 100644
--- a/packages/massa-web3/test/experimental/integration/publicAPI.spec.ts
+++ b/packages/massa-web3/test/experimental/integration/publicAPI.spec.ts
@@ -4,7 +4,7 @@ import {
   ReadOnlyCall,
   Slot,
 } from '../../../src/experimental/generated/client'
-import { PublicAPI, Transport } from '../../../src/experimental/publicAPI'
+import { JsonRPCClient } from '../../../src/experimental/jsonRPCClient'
 import { createCheckers } from 'ts-interface-checker'
 import validator from '../../../src/experimental/generated/client-ti'
 import { EventFilter } from '../../../src/experimental/client'
@@ -24,7 +24,7 @@ const {
   ExecuteReadOnlyResponse,
 } = createCheckers(validator)
 
-const api = new PublicAPI(Transport.https, 'buildnet.massa.net', 443, '/api/v2')
+const api = new JsonRPCClient('https://buildnet.massa.net/api/v2')
 
 let lastSlot: Slot = { period: 0, thread: 0 }
 let someEndorsement: string[]
diff --git a/packages/massa-web3/test/experimental/integration/smartContract.spec.ts b/packages/massa-web3/test/experimental/integration/smartContract.spec.ts
index 3691b8b0..2f836656 100644
--- a/packages/massa-web3/test/experimental/integration/smartContract.spec.ts
+++ b/packages/massa-web3/test/experimental/integration/smartContract.spec.ts
@@ -1,17 +1,14 @@
 import { Account } from '../../../src/experimental/account'
 import { ByteCode } from '../../../src/experimental/smartContract'
-import { PublicAPI, Transport } from '../../../src/experimental/publicAPI'
 import 'dotenv/config'
+import { JsonRPCClient } from '../../../src/experimental/jsonRPCClient'
 
 describe('Basic use cases', () => {
   test('Smart Contract - execute', async () => {
     const account = await Account.fromEnv()
-    const client = new PublicAPI(
-      Transport.https,
-      'buildnet.massa.net',
-      443,
-      '/api/v2'
-    )
+
+    const client = new JsonRPCClient('https://buildnet.massa.net/api/v2')
+
     const byteCode = new Uint8Array([1, 2, 3, 4])
     const opts = {
       fee: 1n,