# Step 1 — Currency

Add the Chain 138 currency to `@ledgerhq/cryptoassets`.

**In ledger-live repo:**

1. Open `libs/ledgerjs/packages/cryptoassets/src/currencies.ts` (or `currencies.js`).
2. Add the `defi_oracle_meta_mainnet` entry from `currencies.chain138.ts` to the cryptoassets map.
3. If the repo uses a single flat object keyed by id, add: `defi_oracle_meta_mainnet: { ...defiOracleMetaMainnetCurrencyRaw }`.