Skip to content

fix(assets-controller): force default-track Arc's native USDC#9869

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
maxime-oe merged 4 commits into from
Aug 13, 2026
+9 −12
Merged

fix(assets-controller): force default-track Arc's native USDC #9869

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
3fa230c
fix(assets-controller): default-track Arc's native USDC id instead of…
maxime-oe Aug 13, 2026
f37a427
chore(assets-controller): fill in PR number in changelog
maxime-oe Aug 13, 2026
d46df6c
chore(assets-controller): shorten Arc native USDC comment
maxime-oe Aug 13, 2026
7474961
Merge remote-tracking branch 'origin/main' into fix/arc-native-usdc-d…
maxime-oe Aug 13, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
1 change: 1 addition & 0 deletions packages/assets-controller/CHANGELOG.md
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0

### Fixed

- Fix Arc native USDC never appearing until the account receives its first deposit, by default-tracking the native asset id (`eip155:5042/slip44:5042`) instead of the `0x3600...` ERC20 identity so `assetsInfo` metadata is seeded up front ([#9869](https://github.com/MetaMask/core/pull/9869))
- Properly filter empty (`''`) selected account group event ([#9825](https://github.com/MetaMask/core/pull/9825))

## [13.1.2]
Expand Down
20 changes: 8 additions & 12 deletions packages/assets-controller/src/defaults.ts
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -32,20 +32,16 @@ const MUSD_METADATA: FungibleAssetMetadata = {
};

/**
* Harcoded metadata for USDC on Arc (5042/0x13b2).
* USDC exists as both native (18 decimals) and ERC20 (6 decimals).
* We choose to force-hide the native version to avoid double listing using
* `CHAIN_IDS_WITH_NO_NATIVE_TOKEN`.
* In the meantime, the code below force-shows USDC the ERC20 token.
* Arc's native USDC also exists as its own ERC20 (`0x3600...`); Accounts API
* resolves that identity without ever seeding native `assetsInfo` metadata.
*/
const USDC_ON_ARC_ASSET_ID =
'eip155:5042/erc20:0x3600000000000000000000000000000000000000';
const ARC_NATIVE_ASSET_ID = 'eip155:5042/slip44:5042';

const USDC_ON_ARC_METADATA: FungibleAssetMetadata = {
type: 'erc20',
const ARC_NATIVE_METADATA: FungibleAssetMetadata = {
type: 'native',
symbol: 'USDC',
name: 'USDC',
decimals: 6,
decimals: 18,
};

/**
Expand DownExpand Up@@ -76,7 +72,7 @@ export const DEFAULT_TRACKED_ASSETS_BY_CHAIN: ReadonlyMap<
['eip155:1' as ChainId, [musdAssetId('eip155:1' as ChainId)]],
['eip155:59144' as ChainId, [musdAssetId('eip155:59144' as ChainId)]],
['eip155:143' as ChainId, [musdAssetId('eip155:143' as ChainId)]],
['eip155:5042' as ChainId, [USDC_ON_ARC_ASSET_ID]],
['eip155:5042' as ChainId, [ARC_NATIVE_ASSET_ID]],
]);

/**
Expand All@@ -97,7 +93,7 @@ export const DEFAULT_ASSET_METADATA: ReadonlyMap<string, AssetMetadata> =
[musdAssetId('eip155:1' as ChainId), MUSD_METADATA],
[musdAssetId('eip155:59144' as ChainId), MUSD_METADATA],
[musdAssetId('eip155:143' as ChainId), MUSD_METADATA],
[USDC_ON_ARC_ASSET_ID, USDC_ON_ARC_METADATA],
[ARC_NATIVE_ASSET_ID, ARC_NATIVE_METADATA],
Comment thread
maxime-oe marked this conversation as resolved.
]);

/**
Expand Down