> ## Documentation Index
> Fetch the complete documentation index at: https://defi-cli.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# IDs and Amounts

> Use canonical chain/asset IDs and normalized amount fields.

## Chain IDs

`--chain`, `--from`, and `--to` accept:

* CAIP-2: `eip155:1`
* Numeric EVM chain ID: `1`
* Alias: `ethereum`, `base`, `hyperevm`, `megaeth`, `gnosis`, `taiko`, etc.
* Solana mainnet alias/CAIP-2: `solana` or `solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp`

`defi-cli` normalizes these to canonical CAIP-2 IDs in output.

## Asset IDs

Asset inputs accept:

* Symbol: `USDC`
* Token address: `0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48`
* CAIP-19: `eip155:1/erc20:0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48`
* Solana CAIP-19: `solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp/token:EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v`

Output always returns canonical CAIP-19 in fields like `asset_id`, `from_asset_id`, `to_asset_id`.

## Amount semantics

For swap and bridge quotes:

* `--amount` is base units (recommended for automation)
* `--amount-decimal` is human decimal form
* for swaps, these map to `--type exact-input` (default)
* for swaps with `--type exact-output`, use `--amount-out` or `--amount-out-decimal`
* passing both base+decimal variants for the same side returns a usage error

Output includes both normalized forms:

```json theme={null}
"trade_type": "exact-input",
"input_amount": {
  "amount_base_units": "1000000",
  "amount_decimal": "1",
  "decimals": 6
}
```

## Important caveats

* Symbol parsing depends on the local bootstrap token registry.
* On chains without symbol coverage, pass address or CAIP-19 directly.
* Solana support is mainnet-only (`solana` / `solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp`).
* Solana devnet/testnet aliases and custom Solana CAIP-2 references are rejected.
* MegaETH bootstrap symbol support currently includes `MEGA`, `WETH`, and `USDT` (`USDT` resolves to the chain `USDT0` contract).

See [Chain Aliases](/reference/chain-aliases).