Fungibles API - New Fields (Non-breaking)

Added

Added trading_volumes to fungible and per-implementation market data, deployment_date to fungible implementations, and introduced a new AttributesImplementation type.

Description

New Type: AttributesImplementation

The implementations array in FungibleAttributes now uses a new dedicated type, AttributesImplementation, instead of the shared Implementation type.

AttributesImplementation is backward compatible — it contains all existing fields (chain_id, address, decimals) and extends them with new ones. Going forward, AttributesImplementation and Implementation evolve independently: changes to fungible attribute implementations will not affect Implementation, and vice versa.

New Fields in AttributesImplementation

market_data — per-chain market data for the implementation. Contains:

• trading_volumes.volume_1d — 24-hour trading volume on this chain in the selected currency.

Omitted when no market data is available for the implementation.

deployment_date — ISO 8601 datetime when the token contract was deployed on this chain. Omitted if the deployment date is not known.

New Field in FungibleAttributes.market_data

trading_volumes — aggregate trading volumes for the fungible across all chains:

• trading_volumes.volume_1d — total 24-hour trading volume in the selected currency.

Omitted when no trading volume data is available.

Impact

No breaking changes. All new fields are optional and omitted when data is unavailable. The shape of existing fields is unchanged.

Migration

No client changes required.