Supported Assets

Dfns offers a wide array of chain-specific crypto asset support. Before reviewing our support matrix, it's important to understand how Dfns exposes APIs for facilitating blockchain interactions:

1. High-level APIs: Transfer Asset simplifies complex asset transfer operations. It abstracts away the details of blockchain interactions, allowing for easier integration. Dfns asset integrations are implemented in the context of this high-level API and are detailed below.

2. Mid-level APIs: Sign and Broadcast Enables interaction with any arbitrary smart contract but requires developers to integrate with native chain SDKs to format transactions as inputs. It requires more development but provides greater control over the transaction.

3. Low-level APIs: Generate Signature offer granular control by exposing our MPC signing directly to the developer. This also requires more engineering effort, but makes it possible to execute any interaction with any chain that supports our underlying cryptographic schemes: ECDSA, EdDSA, and Schnorr.

When using the high-level Transfers APIs, Dfns supports various assets across multiple chains, such as native cryptocurrencies, ERC-20 tokens, NFTs, and non-EVM assets. In the Dfns API, the kind variable specifies the type of asset being transferred. It determines how the transaction is processed based on the asset's blockchain standard. For example, kind can be set to Native for base cryptocurrencies (e.g., Bitcoin, Ethereum), ERC20 for fungible tokens on Ethereum, or ERC721 for NFTs. Other possible values include standards from non-EVM chains like SPL or ASA. Correctly setting the kind ensures that the API handles the transaction according to the asset's unique characteristics.

Each asset type requires specific parameters, such as contract addresses for ERC-20 and ERC-721 tokens, or asset IDs for non-EVM assets. Transactions involve specifying the asset type, destination address, and amount, with additional fields varying by asset type.

Here is a summary of the assets currently supported by the Dfns Transfer API:

Blockchain Network	Native Cryptocurrency	Token Standards
Algorand	ALGO	ASA
Arbitrum	ETH	ERC-20, ERC-721
Avalanche C-Chain	AVAX	ERC-20, ERC-721
Base	ETH	ERC-20, ERC-721
Bitcoin	BTC	N/A
BSC (Binance Smart Chain)	BNB	BEP-20, BEP-721
Cardano	ADA	N/A
Ethereum	ETH	ERC-20, ERC-721
Fantom Opera	FTM	ERC-20, ERC-721
Internet Computer	ICP	ICRC (not generic)
Kusama	KSM	N/A
Litecoin	LTC	N/A
Optimism	ETH	ERC-20, ERC-721
Polkadot	DOT	N/A
Polygon	POL (fka MATIC)	ERC-20, ERC-721
Solana	SOL	SPL, SPL 2022
Stellar	XLM	SEP-41 (includes Stellar Classic Assets)
Tezos	XTZ	N/A
Ton	TON	TEP-74 (Jetton)
Tron	TRX	TRC-10, TRC-20, TRC-721
XRP Ledger (Ripple)	XRP	N/A

This table highlights the blockchains, their native cryptocurrencies, and supported token standards (e.g., ERC-20 for Ethereum-based tokens). For detailed information, refer to the documentation here.