From a6f10b4bf9b7ef55c4ce6d58ee63bf0b7eebe9e9 Mon Sep 17 00:00:00 2001
From: Lukas <36800180+lukasrosario@users.noreply.github.com>
Date: Fri, 2 Aug 2024 16:04:26 -0400
Subject: [PATCH] Update ERC-7677: chain id update

Merged by EIP-Bot.
---
 ERCS/erc-7677.md | 36 ++++++++++++++++++++++++------------
 1 file changed, 24 insertions(+), 12 deletions(-)

diff --git a/ERCS/erc-7677.md b/ERCS/erc-7677.md
index 8c155c41f4..528f0e279d 100644
--- a/ERCS/erc-7677.md
+++ b/ERCS/erc-7677.md
@@ -242,15 +242,18 @@ The `paymasterService` capability is implemented by both apps and wallets.
 
 #### App Implementation
 
-Apps need to give wallets a paymaster service URL they can make the above RPC calls to. They can do this using the `paymasterService` capability as part of an [EIP-5792](./eip-5792.md) `wallet_sendCalls` call.
+Apps need to give wallets paymaster service URLs they can make the above RPC calls to. They can do this using the `paymasterService` capability as part of an [EIP-5792](./eip-5792.md) `wallet_sendCalls` call.
 
 ##### `wallet_sendCalls` Paymaster Capability Specification
 
 ```typescript
-type PaymasterCapabilityParams = {
-  url: string;
-  context: Record<string, any>;
-}
+type PaymasterCapabilityParams = Record<
+  `0x${string}`, // Chain ID
+  {
+    url: string; // Paymaster service URL for provided chain ID
+    context: Record<string, any>; // Additional data defined by paymaster service providers
+  }
+>;
 ```
 
 ###### `wallet_sendCalls` Example Parameters
@@ -259,25 +262,34 @@ type PaymasterCapabilityParams = {
 [
   {
     "version": "1.0",
-    "chainId": "0x01",
     "from": "0xd46e8dd67c5d32be8058bb8eb970870f07244567",
     "calls": [
       {
         "to": "0xd46e8dd67c5d32be8058bb8eb970870f07244567",
         "value": "0x9184e72a",
-        "data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"
+        "data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675",
+        "chainId": "0x01"
       },
       {
         "to": "0xd46e8dd67c5d32be8058bb8eb970870f07244567",
         "value": "0x182183",
-        "data": "0xfbadbaf01"
+        "data": "0xfbadbaf01",
+        "chainId": "0x2105"
       }
     ],
     "capabilities": {
       "paymasterService": {
-        "url": "https://...",
-        "context": {
-          "policyId": "962b252c-a726-4a37-8d86-333ce0a07299"
+        "0x01": {
+          "url": "https://...",
+          "context": {
+            "policyId": "962b252c-a726-4a37-8d86-333ce0a07299"
+          }
+        },
+        "0x2105": {
+          "url": "https://...",
+          "context": {
+            "policyId": "0a268db9-3243-4178-b1bd-d9b67a47d37b"
+          }
         }
       }
     }
@@ -285,7 +297,7 @@ type PaymasterCapabilityParams = {
 ]
 ```
 
-The wallet will then make the above paymaster RPC calls to the URL specified in the `paymasterService` capability field.
+The wallet will then make the above paymaster RPC calls to the URLs specified in the `paymasterService` capability field.
 
 #### Wallet Implementation