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chore: Add Arc chain #204

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8e854bc
chore: Add Arc chain
dijanin-brat May 27, 2026
7609d31
alpha release
dijanin-brat May 27, 2026
058b967
change alpha release
dijanin-brat May 27, 2026
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2 changes: 1 addition & 1 deletion package.json
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
{
"name": "@across-protocol/constants",
"version": "3.1.111",
"version": "3.1.112",
"description": "Export commonly re-used values for Across repositories",
"repository": {
"type": "git",
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22 changes: 22 additions & 0 deletions src/networks.ts
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
// Chain names and IDs.
export const TESTNET_SEPOLIA_CHAIN_IDs = {
ARBITRUM_SEPOLIA: 421614,
ARC_TESTNET: 5042002,
BASE_SEPOLIA: 84532,
BLAST_SEPOLIA: 168587773,
BOB_SEPOLIA: 808813,
Expand Down Expand Up @@ -28,6 +29,7 @@ export const TESTNET_CHAIN_IDs = {
export const MAINNET_CHAIN_IDs = {
ALEPH_ZERO: 41455,
ARBITRUM: 42161,
ARC: 5042,
AVALANCHE: 43114,
BASE: 8453,
BLAST: 81457,
Expand Down Expand Up @@ -155,6 +157,16 @@ export const PRODUCTION_NETWORKS: { [chainId: number]: PublicNetwork } = {
oftEid: PRODUCTION_OFT_EIDs.ARBITRUM,
hypDomainId: MAINNET_CHAIN_IDs.ARBITRUM,
},
[CHAIN_IDs.ARC]: {
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@chatgpt-codex-connector chatgpt-codex-connector Bot May 27, 2026

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P2 Badge Keep Arc out of production until mainnet details exist

This adds Arc to PRODUCTION_NETWORKS, so production consumers that enumerate supported chains or use the fallback RPC/explorer will treat chain 5042 as live. Arc's public docs currently identify the public testnet as the active network with chain ID 5042002 and say mainnet endpoints/parameters are published separately when available; Circle's domain 26 is also listed for Arc Testnet. Until real mainnet parameters exist, this should stay only in TEST_NETWORKS to avoid routing production flows to placeholder/non-live Arc endpoints.

Useful? React with 👍 / 👎.

name: "ARC",
family: NONE,
nativeToken: "USDC",
publicRPC: "https://rpc.arc.network", // @TODO: Add proper RPC endpoint
blockExplorer: "https://arcscan.app", // @TODO: Add proper block explorer
cctpDomain: 26,
oftEid: OFT_NO_EID,
hypDomainId: HYPERLANE_NO_DOMAIN_ID,
},
[CHAIN_IDs.AVALANCHE]: {
name: "Avalanche",
family: NONE,
Expand Down Expand Up @@ -478,6 +490,16 @@ export const TEST_NETWORKS: { [chainId: number]: PublicNetwork } = {
oftEid: TESTNET_OFT_EIDs.ARBITRUM_SEPOLIA,
hypDomainId: TESTNET_CHAIN_IDs.ARBITRUM_SEPOLIA,
},
[CHAIN_IDs.ARC_TESTNET]: {
name: "ARC Testnet",
family: NONE,
nativeToken: "USDC",
publicRPC: "https://rpc.testnet.arc.network", // @TODO: Add proper RPC endpoint
blockExplorer: "https://testnet.arcscan.app", // @TODO: Add proper block explorer
cctpDomain: 26,
oftEid: OFT_NO_EID,
hypDomainId: HYPERLANE_NO_DOMAIN_ID,
},
[CHAIN_IDs.BASE_SEPOLIA]: {
name: "Base Sepolia",
family: OP_STACK,
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2 changes: 2 additions & 0 deletions src/tokens.ts
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Expand Up @@ -363,6 +363,8 @@ export const TOKEN_SYMBOLS_MAP = {
addresses: {
[CHAIN_IDs.ARBITRUM]: "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
[CHAIN_IDs.ARBITRUM_SEPOLIA]: "0x75faf114eafb1BDbe2F0316DF893fd58CE46AA4d",
[CHAIN_IDs.ARC]: "0x3600000000000000000000000000000000000000",
[CHAIN_IDs.ARC_TESTNET]: "0x3600000000000000000000000000000000000000",
[CHAIN_IDs.AVALANCHE]: "0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E",
[CHAIN_IDs.BASE]: "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
[CHAIN_IDs.BASE_SEPOLIA]: "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
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