Asset Class - BlockDB Docs

AssetClass Enumeration

Defines the asset classes that can appear in price request base and quote descriptors as well as discovery responses. The type field inside asset descriptors must match one of the following values.

Value	Description	Notes
`erc20`	Fungible ERC-20 token on an EVM chain.	Require `address` (EIP-55 checksum).
`fiat`	Fiat currency.	Require ISO 4217 `code` (e.g., `USD`).
`native`	Native gas token for a chain.	Provide `symbol`; optional `wrapped_address` for the wrapped variant.
`index`	Synthetic/composite index.	Provide `symbol` referencing BlockDB index ID.

Usage Notes

Additional asset classes may be introduced over time; clients should treat unknown values as unsupported.
Asset descriptors may include supplementary metadata (e.g., decimals) but only the fields listed above are required for price endpoints.

Last modified on February 22, 2026