From 5eb4f800aee4a379b40794f4efcdcb6d4f0fa849 Mon Sep 17 00:00:00 2001
From: Foulks-Plb <bananox88@gmail.com>
Date: Thu, 22 Jan 2026 12:19:35 +0100
Subject: [PATCH 1/3] feat: add eurc address and update permit version handling

---
 packages/blue-sdk-viem/src/signatures/permit.ts | 4 ++--
 packages/blue-sdk/src/addresses.ts              | 7 +++++++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/packages/blue-sdk-viem/src/signatures/permit.ts b/packages/blue-sdk-viem/src/signatures/permit.ts
index 7e6c39b0..66315c4a 100644
--- a/packages/blue-sdk-viem/src/signatures/permit.ts
+++ b/packages/blue-sdk-viem/src/signatures/permit.ts
@@ -33,11 +33,11 @@ export const getPermitTypedData = (
   { deadline, owner, nonce, spender, erc20, allowance }: PermitArgs,
   chainId: ChainId,
 ): TypedDataDefinition<typeof permitTypes, "Permit"> => {
-  const { usdc } = getChainAddresses(chainId);
+  const { usdc, eurc } = getChainAddresses(chainId);
 
   const domain = erc20.eip5267Domain?.eip712Domain ?? {
     name: erc20.name,
-    version: erc20.address === usdc ? "2" : "1",
+    version: erc20.address === usdc || erc20.address === eurc ? "2" : "1",
     chainId,
     verifyingContract: erc20.address,
   };
diff --git a/packages/blue-sdk/src/addresses.ts b/packages/blue-sdk/src/addresses.ts
index 3e818aa4..53222cf5 100644
--- a/packages/blue-sdk/src/addresses.ts
+++ b/packages/blue-sdk/src/addresses.ts
@@ -52,6 +52,10 @@ export interface ChainAddresses {
    * Must implement USDC permit version 2 (otherwise breaks permit signatures).
    */
   usdc?: Address;
+  /**
+   * Must implement USDC permit version 2 (otherwise breaks permit signatures).
+   */
+  eurc?: Address;
   stEth?: Address;
   wstEth?: Address;
 }
@@ -106,6 +110,7 @@ const _addressesRegistry = {
     wbC3M: "0x95D7337d43340E2721960Dc402D9b9117f0d81a2",
     // Must implement USDC permit version 2 (otherwise breaks permit signatures).
     usdc: "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
+    eurc: "0x1aBaEA1f7C830bD89Acc67eC4af516284b1bC33c",
     usdt: "0xdAC17F958D2ee523a2206206994597C13D831ec7",
     crvUsd: "0xf939E0A03FB07F59A73314E73794Be0E57ac1b4E",
 
@@ -151,6 +156,7 @@ const _addressesRegistry = {
     wNative: "0x4200000000000000000000000000000000000006",
     // Must implement USDC permit version 2 (otherwise breaks permit signatures).
     usdc: "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
+    eurc: "0x60a3E35Cc302bFA44Cb288Bc5a4F316Fdb1adb42",
     verUsdc: "0x59aaF835D34b1E3dF2170e4872B785f11E2a964b",
     testUsdc: "0xBC77067f829979812d795d516E523C4033b66409",
   },
@@ -250,6 +256,7 @@ const _addressesRegistry = {
     preLiquidationFactory: "0xe3cE2051a24e58DBFC0eFBe4c2d9e89c5eAe4695",
 
     wNative: "0x4200000000000000000000000000000000000006",
+    eurc: "0x1C60ba0A0eD1019e8Eb035E6daF4155A5cE2380B",
   },
   [ChainId.FraxtalMainnet]: {
     morpho: "0xa6030627d724bA78a59aCf43Be7550b4C5a0653b",

From 8973a9ba91de948d70ff6e673ee4219f43e49d77 Mon Sep 17 00:00:00 2001
From: Foulks-Plb <bananox88@gmail.com>
Date: Wed, 28 Jan 2026 19:52:30 +0100
Subject: [PATCH 2/3] feat: add EURC address and update permit version comments

---
 packages/blue-sdk/src/addresses.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/blue-sdk/src/addresses.ts b/packages/blue-sdk/src/addresses.ts
index 53222cf5..a7859c1c 100644
--- a/packages/blue-sdk/src/addresses.ts
+++ b/packages/blue-sdk/src/addresses.ts
@@ -110,6 +110,7 @@ const _addressesRegistry = {
     wbC3M: "0x95D7337d43340E2721960Dc402D9b9117f0d81a2",
     // Must implement USDC permit version 2 (otherwise breaks permit signatures).
     usdc: "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
+    // Must implement EURC permit version 2 (otherwise breaks permit signatures).
     eurc: "0x1aBaEA1f7C830bD89Acc67eC4af516284b1bC33c",
     usdt: "0xdAC17F958D2ee523a2206206994597C13D831ec7",
     crvUsd: "0xf939E0A03FB07F59A73314E73794Be0E57ac1b4E",
@@ -156,6 +157,7 @@ const _addressesRegistry = {
     wNative: "0x4200000000000000000000000000000000000006",
     // Must implement USDC permit version 2 (otherwise breaks permit signatures).
     usdc: "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
+    // Must implement EURC permit version 2 (otherwise breaks permit signatures).
     eurc: "0x60a3E35Cc302bFA44Cb288Bc5a4F316Fdb1adb42",
     verUsdc: "0x59aaF835D34b1E3dF2170e4872B785f11E2a964b",
     testUsdc: "0xBC77067f829979812d795d516E523C4033b66409",
@@ -256,6 +258,7 @@ const _addressesRegistry = {
     preLiquidationFactory: "0xe3cE2051a24e58DBFC0eFBe4c2d9e89c5eAe4695",
 
     wNative: "0x4200000000000000000000000000000000000006",
+    // Must implement EURC permit version 2 (otherwise breaks permit signatures).
     eurc: "0x1C60ba0A0eD1019e8Eb035E6daF4155A5cE2380B",
   },
   [ChainId.FraxtalMainnet]: {

From ec5574f1228c9fe3d5e4b598a41d56388ddfe530 Mon Sep 17 00:00:00 2001
From: Foulks-Plb <bananox88@gmail.com>
Date: Thu, 29 Jan 2026 10:52:20 +0100
Subject: [PATCH 3/3] fix: correct permit version comment for EURC and clean up
 code formatting

---
 packages/blue-sdk/src/addresses.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/blue-sdk/src/addresses.ts b/packages/blue-sdk/src/addresses.ts
index a7859c1c..8360abbd 100644
--- a/packages/blue-sdk/src/addresses.ts
+++ b/packages/blue-sdk/src/addresses.ts
@@ -53,7 +53,7 @@ export interface ChainAddresses {
    */
   usdc?: Address;
   /**
-   * Must implement USDC permit version 2 (otherwise breaks permit signatures).
+   * Must implement EURC permit version 2 (otherwise breaks permit signatures).
    */
   eurc?: Address;
   stEth?: Address;