Trade / Swap Tokens

Exchange one token for another via Fibrous aggregation. The CLI finds the best route, handles token approvals, simulates the swap, and executes.

Note: Automatically detects and executes Wrap (Native -> Wrapped) and Unwrap (Wrapped -> Native) operations directly via contract calls, bypassing aggregation to save gas.

Prerequisites

• Active session required.
• Sufficient balance of the source token + gas fees.

Rules

1. BEFORE any trade, you MUST run npx fibx@latest status and npx fibx@latest balance to verify connectivity and source token balance.
2. If the user specifies a chain, you MUST include --chain <name>. If not specified, default to base and state it.
3. Default slippage is 0.5%. To change it, you MUST ask the user for confirmation before using --slippage.
4. The CLI defaults to exact approval for ERC-20 tokens. NEVER use --approve-max unless the user explicitly requests it.
5. AFTER a successful trade, you MUST verify the transaction using tx-status with the same --chain flag.

Chain Reference

Chain	Flag	Native Token
Base	--chain base	ETH
Citrea	--chain citrea	cBTC
HyperEVM	--chain hyperevm	HYPE
Monad	--chain monad	MON

Commands

npx fibx@latest trade <amount> <from_token> <to_token> [--chain <chain>] [--slippage <n>] [--approve-max] [--json]

Parameters

Parameter	Type	Description	Required
amount	number	Amount of source token to swap	Yes
from_token	string	Source token symbol (e.g. ETH, USDC)	Yes
to_token	string	Target token symbol (e.g. USDC, DAI)	Yes
chain	string	base, citrea, hyperevm, or monad	No
slippage	number	Slippage tolerance in % (e.g. 1.0)	No
approve-max	flag	Use infinite approval instead of exact	No
json	flag	Output as JSON	No

Default chain: base. Default slippage: 0.5.

Examples

User: "Swap 0.1 ETH for USDC"

npx fibx@latest status
npx fibx@latest balance
npx fibx@latest trade 0.1 ETH USDC
npx fibx@latest tx-status <hash>

User: "Buy USDC with 1 MON on Monad"

npx fibx@latest status
npx fibx@latest balance --chain monad
npx fibx@latest trade 1 MON USDC --chain monad
npx fibx@latest tx-status <hash> --chain monad

User: "Wrap 1 ETH to WETH on Base"

npx fibx@latest status
npx fibx@latest balance
npx fibx@latest trade 1 ETH WETH --chain base
npx fibx@latest tx-status <hash>

User: "Unwrap 0.5 wMON on Monad"

npx fibx@latest status
npx fibx@latest balance --chain monad
npx fibx@latest trade 0.5 wMON MON --chain monad
npx fibx@latest tx-status <hash> --chain monad

Error Handling

Error	Action
No route found	Liquidity may be too low or pair doesn't exist on the chain.
Insufficient balance	Check balance and suggest a smaller amount.
Slippage exceeded	Price moved unfavorably — suggest retrying with --slippage.
Simulation failed	Route is invalid or would revert. Do not retry blindly.
Not authenticated	Run authenticate-wallet skill first.
Rate limit / 429	Use config skill to set a custom RPC.