From 37c5ed1b5e4608cf8b80b3e06c726aadfa4f0db6 Mon Sep 17 00:00:00 2001
From: ArielElp <ariel@starkware.co>
Date: Mon, 29 May 2023 18:01:45 +0300
Subject: [PATCH 1/3] add starknet_estimateMessageFee endpoint

---
 api/starknet_api_openrpc.json | 50 +++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

diff --git a/api/starknet_api_openrpc.json b/api/starknet_api_openrpc.json
index cc4d8b8..b098303 100644
--- a/api/starknet_api_openrpc.json
+++ b/api/starknet_api_openrpc.json
@@ -536,6 +536,56 @@
                 }
             ]
         },
+        {
+            "name": "starknet_estimateMessageFee",
+            "summary": "estimate the L2 fee of a message sent on L1",
+            "description": "estimates the resources required by the l1_handler transaction induced by the message",
+            "params": [
+                {
+                    "name": "message",
+                    "description": "the message's parameters",
+                    "schema": {
+                        "$ref": "#/components/schemas/FUNCTION_CALL"
+                    },
+                    "required": true
+                },
+                {
+                    "name": "sender_address",
+                    "description": "the L1 address of the sender",
+                    "schema": {
+                        "$ref": "#/components/schemas/ETH_ADDRESS"
+                    },
+                    "required": true
+                },
+                {
+                    "name": "block_id",
+                    "description": "The hash of the requested block, or number (height) of the requested block, or a block tag, for the block referencing the state or call the transaction on.",
+                    "required": true,
+                    "schema": {
+                        "title": "Block id",
+                        "$ref": "#/components/schemas/BLOCK_ID"
+                    }
+                }
+            ],
+            "result": {
+                "name": "result",
+                "description": "the fee estimation",
+                "schema": {
+                    "$ref": "#/components/schemas/FEE_ESTIMATE"
+                }
+            },
+            "errors": [
+                {
+                    "$ref": "#/components/errors/CONTRACT_NOT_FOUND"
+                },
+                {
+                    "$ref": "#/components/errors/CONTRACT_ERROR"
+                },
+                {
+                    "$ref": "#/components/errors/BLOCK_NOT_FOUND"
+                }
+            ]
+        },
         {
             "name": "starknet_blockNumber",
             "summary": "Get the most recent accepted block number",

From bd5ea0055c8eab7caf6a1fa5e75d1da7063291ef Mon Sep 17 00:00:00 2001
From: ArielElp <ariel@starkware.co>
Date: Wed, 21 Jun 2023 10:27:06 +0300
Subject: [PATCH 2/3] create msg_from_l1 type

---
 api/starknet_api_openrpc.json | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/api/starknet_api_openrpc.json b/api/starknet_api_openrpc.json
index b098303..859181f 100644
--- a/api/starknet_api_openrpc.json
+++ b/api/starknet_api_openrpc.json
@@ -545,7 +545,7 @@
                     "name": "message",
                     "description": "the message's parameters",
                     "schema": {
-                        "$ref": "#/components/schemas/FUNCTION_CALL"
+                        "$ref": "#/components/schemas/MSG_FROM_L1"
                     },
                     "required": true
                 },
@@ -2357,6 +2357,34 @@
                     "payload"
                 ]
             },
+            "MSG_FROM_L1": {
+                "title": "Message from L1",
+                "type": "object",
+                "properties": {
+                    "from_address": {
+                        "description": "The address of the L1 contract sending the message",
+                        "$ref": "#/components/schemas/ETH_ADDRESS"
+                    },
+                    "to_address": {
+                        "title": "To address",
+                        "description": "The target L2 address the message is sent to",
+                        "$ref": "#/components/schemas/ADDRESS"
+                    },
+                    "payload": {
+                        "description": "The payload of the message",
+                        "title": "Payload",
+                        "type": "array",
+                        "items": {
+                            "$ref": "#/components/schemas/FELT"
+                        }
+                    }
+                },
+                "required": [
+                    "from_address",
+                    "to_address",
+                    "payload"
+                ]
+            },
             "TXN_STATUS": {
                 "title": "Transaction status",
                 "type": "string",

From 0d1eb908d82e9da2bc8f1c912ed870e633fb7e4d Mon Sep 17 00:00:00 2001
From: ArielElp <ariel@starkware.co>
Date: Thu, 6 Jul 2023 08:30:32 +0300
Subject: [PATCH 3/3] remove redundant field

---
 api/starknet_api_openrpc.json | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/api/starknet_api_openrpc.json b/api/starknet_api_openrpc.json
index 859181f..af92bf7 100644
--- a/api/starknet_api_openrpc.json
+++ b/api/starknet_api_openrpc.json
@@ -549,14 +549,6 @@
                     },
                     "required": true
                 },
-                {
-                    "name": "sender_address",
-                    "description": "the L1 address of the sender",
-                    "schema": {
-                        "$ref": "#/components/schemas/ETH_ADDRESS"
-                    },
-                    "required": true
-                },
                 {
                     "name": "block_id",
                     "description": "The hash of the requested block, or number (height) of the requested block, or a block tag, for the block referencing the state or call the transaction on.",