From f78eab1cdb7ee601535f0eccc66c757894737cc1 Mon Sep 17 00:00:00 2001
From: Rithwik Subhrahmannian <rithwiksubrahmannian333@bitgo.com>
Date: Tue, 28 Jul 2026 18:12:40 +0530
Subject: [PATCH] feat(statics): add sepolia on testnet

TICKET: CECHO-1721
---
 modules/statics/src/allCoinsAndTokens.ts      | 29 +++++++++++++++++++
 modules/statics/src/coins/ofcCoins.ts         |  8 +++++
 modules/statics/src/networks.ts               | 14 +++++++++
 .../unit/fixtures/expectedColdFeatures.ts     |  1 +
 4 files changed, 52 insertions(+)

diff --git a/modules/statics/src/allCoinsAndTokens.ts b/modules/statics/src/allCoinsAndTokens.ts
index 637aea712e..d28ad5ccba 100644
--- a/modules/statics/src/allCoinsAndTokens.ts
+++ b/modules/statics/src/allCoinsAndTokens.ts
@@ -401,6 +401,35 @@ export const allCoinsAndTokens = [
       CoinFeature.CUSTODY_BULK_TRANSACTION,
     ]
   ),
+  account(
+    '26f8f544-831b-4d40-bca4-835f1b45f4db',
+    'sepeth',
+    'Sepolia Testnet Ethereum',
+    Networks.test.sepolia,
+    18,
+    UnderlyingAsset.ETH,
+    BaseUnit.ETH,
+    [
+      ...ETH_FEATURES_WITH_STAKING_AND_MMI,
+      CoinFeature.TSS,
+      CoinFeature.TSS_COLD,
+      CoinFeature.MPCV2,
+      CoinFeature.MULTISIG_COLD,
+      CoinFeature.EVM_WALLET,
+      CoinFeature.CUSTODY_BITGO_GERMANY,
+      CoinFeature.CUSTODY_BITGO_NEW_YORK,
+      CoinFeature.CUSTODY_BITGO_SWITZERLAND,
+      CoinFeature.CUSTODY_BITGO_FRANKFURT,
+      CoinFeature.CUSTODY_BITGO_SINGAPORE,
+      CoinFeature.CUSTODY_BITGO_KOREA,
+      CoinFeature.BULK_TRANSACTION,
+      CoinFeature.STUCK_TRANSACTION_MANAGEMENT_ONCHAIN,
+      CoinFeature.STUCK_TRANSACTION_MANAGEMENT_TSS,
+      CoinFeature.EIP1559,
+      CoinFeature.ERC20_BULK_TRANSACTION,
+      CoinFeature.CUSTODY_BULK_TRANSACTION,
+    ]
+  ),
   account(
     '33712672-8cb9-444e-be92-b8c9e84050d5',
     'ethw',
diff --git a/modules/statics/src/coins/ofcCoins.ts b/modules/statics/src/coins/ofcCoins.ts
index 7ec4fadc21..d64078ea6b 100644
--- a/modules/statics/src/coins/ofcCoins.ts
+++ b/modules/statics/src/coins/ofcCoins.ts
@@ -830,6 +830,14 @@ export const ofcCoins = [
     UnderlyingAsset.ETH,
     CoinKind.CRYPTO
   ),
+  tofc(
+    '12dc5b36-de2b-4cd4-9282-e7325407db0a',
+    'ofctsepeth',
+    'Test Sepolia Ether',
+    18,
+    UnderlyingAsset.ETH,
+    CoinKind.CRYPTO
+  ),
   tofc(
     'f43d0558-8c07-4927-af7f-33947fd310c9',
     'ofctavaxc',
diff --git a/modules/statics/src/networks.ts b/modules/statics/src/networks.ts
index 1ad5b3a5d4..1a8377e56f 100644
--- a/modules/statics/src/networks.ts
+++ b/modules/statics/src/networks.ts
@@ -864,6 +864,19 @@ class Hoodi extends Testnet implements EthereumNetwork {
   zamaAclContractAddress = '0x6d3faf6f86e1ff9f3b0831dda920aba1cbd5bd68';
 }
 
+class Sepolia extends Testnet implements EthereumNetwork {
+  name = 'Sepolia';
+  family = CoinFamily.ETH;
+  explorerUrl = 'https://sepolia.etherscan.io/tx/';
+  accountExplorerUrl = 'https://sepolia.etherscan.io/address/';
+  blockExplorerUrl = 'https://sepolia.etherscan.io/block/';
+  // https://chainlist.org/chain/11155111
+  chainId = 11155111;
+  nativeCoinOperationHashPrefix = 'ETHER';
+  tokenOperationHashPrefix = 'ERC20';
+  // TODO: add batcher/forwarder/wallet contract addresses once deployed on Sepolia
+}
+
 class EthereumClassic extends Mainnet implements EthereumNetwork {
   name = 'EthereumClassic';
   family = CoinFamily.ETC;
@@ -3107,6 +3120,7 @@ export const Networks = {
     goerli: Object.freeze(new Goerli()),
     holesky: Object.freeze(new Holesky()),
     hoodi: Object.freeze(new Hoodi()),
+    sepolia: Object.freeze(new Sepolia()),
     lnbtc: Object.freeze(new LightningBitcoinTestnet()),
     litecoin: Object.freeze(new LitecoinTestnet()),
     mantle: Object.freeze(new MantleTestnet()),
diff --git a/modules/statics/test/unit/fixtures/expectedColdFeatures.ts b/modules/statics/test/unit/fixtures/expectedColdFeatures.ts
index 927ccba868..602449c10c 100644
--- a/modules/statics/test/unit/fixtures/expectedColdFeatures.ts
+++ b/modules/statics/test/unit/fixtures/expectedColdFeatures.ts
@@ -5,6 +5,7 @@ export const expectedColdFeatures = {
     'polygon',
     'tpolygon',
     'hteth',
+    'sepeth',
     'opeth',
     'topeth',
     'arbeth',