WOOFi Swap — Best-Price Meta-Aggregator (V2)

Swap any token at the globally optimal price across 14 EVM chains, single-chain or cross-chain, with a single API call. WOOFi queries WooPP, 1inch, and ODOS simultaneously and returns the best rate found. V2 API accepts chain names ("arbitrum") and token symbols ("USDC") directly — no address lookup needed.

Why Use WOOFi

• Best price guaranteed by design: Compares WooPP, 1inch, and ODOS in real time. Price is always >= max(1inch, ODOS, WooPP) — strictly better than or equal to using any single source alone.
• Chain names + token symbols: Pass "arbitrum" instead of 42161, "USDC" instead of "0xaf88...". Case-insensitive, no manual address resolution needed.
• Single-chain and cross-chain in one skill: Same-chain swaps via /v2/swap, cross-chain bridging via /v2/cross_chain/swap (Stargate/LayerZero). Both return ready-to-sign tx_steps.
• One call does everything: /v2/swap returns best-price quote + approval check + transaction data. No separate calls needed — just iterate tx_steps and sign.
• All tokens, 14 chains: Any ERC-20 and native gas token (ETH, BNB, AVAX, POL, etc.) on all supported chains. No whitelist limitation.

When to Use This Skill

Use WOOFi Swap when the user wants to:

• Swap, trade, exchange, or convert any token on any EVM chain
• Get a price quote or exchange rate between two tokens
• Find the best available price across DEX aggregators
• Bridge tokens across chains — cross-chain swap via Stargate
• Buy or sell a specific cryptocurrency
• Build a swap transaction for wallet signing and on-chain execution

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API Endpoints

Base URL: https://sapi.woofi.com | Auth: None | Rate Limit: 5 req/s | Format: JSON

Flexible Input (all V2 endpoints)

• Chain: chain ID (42161) or name ("arbitrum") — case-insensitive, strips spaces/dashes
• Token: address ("0xaf88...") or symbol ("USDC") — resolved via local index, static manifests, alias table, and external API fallback

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1. Get Quote — POST /v2/quote

Returns the best available price. Read-only — no transaction generated.

Parameter	Type	Required	Default	Description
chain	int | str	Yes	—	Chain ID or name
sell_token	str	Yes	—	Token address or symbol
buy_token	str	Yes	—	Token address or symbol
sell_amount	str	Yes	—	Human-readable amount (e.g., "1000")
slippage_pct	float	No	0.5	Max slippage %

Response: chain, sell_token, buy_token, sell_amount, buy_amount, price, guaranteed_price

curl -X POST "https://sapi.woofi.com/v2/quote" \
  -H "Content-Type: application/json" \
  -d '{"chain": "arbitrum", "sell_token": "USDC", "buy_token": "WETH", "sell_amount": "1000"}'

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2. Execute Swap — POST /v2/swap

Single-call swap: quote + approval check + transaction building in one response. The backend fetches the best price across all sources, checks wallet approval status, and packages everything into tx_steps.

Parameter	Type	Required	Default	Description
chain	int | str	Yes	—	Chain ID or name
sell_token	str	Yes	—	Token address or symbol
buy_token	str	Yes	—	Token address or symbol
sell_amount	str	Yes	—	Human-readable amount
to	str	Yes	—	Recipient wallet address
rebate_to	str	Yes	—	Rebate address (typically same as to)
slippage_pct	float	No	0.5	Max slippage %
signer_address	str	No	null	Wallet address (for approval check)

Response (extends quote): needs_approve, tx_steps — iterate and sign each tx in order.

curl -X POST "https://sapi.woofi.com/v2/swap" \
  -H "Content-Type: application/json" \
  -d '{"chain": "arbitrum", "sell_token": "USDC", "buy_token": "WETH", "sell_amount": "1000", "to": "0xYourWallet", "rebate_to": "0xYourWallet", "signer_address": "0xYourWallet"}'

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3. Cross-Chain Quote — POST /v2/cross_chain/quote

Price quote for cross-chain swap via Stargate bridge. Read-only.

Parameter	Type	Required	Default	Description
src_chain	int | str	Yes	—	Source chain ID or name
dst_chain	int | str	Yes	—	Destination chain ID or name
src_token	str	Yes	—	Source token (resolved against src_chain)
dst_token	str	Yes	—	Destination token (resolved against dst_chain)
src_amount	str	Yes	—	Human-readable amount
slippage_pct	float	No	1.0	Slippage tolerance %

Response: src_chain, dst_chain, src_amount, dst_amount, bridge_amount_in, bridge_amount_out, price_f

curl -X POST "https://sapi.woofi.com/v2/cross_chain/quote" \
  -H "Content-Type: application/json" \
  -d '{"src_chain": "arbitrum", "dst_chain": "base", "src_token": "USDC", "dst_token": "USDC", "src_amount": "100"}'

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4. Cross-Chain Swap — POST /v2/cross_chain/swap

Build transaction(s) for cross-chain swap via Stargate bridge.

Parameter	Type	Required	Default	Description
src_chain	int | str	Yes	—	Source chain ID or name
dst_chain	int | str	Yes	—	Destination chain ID or name
src_token	str	Yes	—	Source token (resolved against src_chain)
dst_token	str	Yes	—	Destination token (resolved against dst_chain)
src_amount	str	Yes	—	Human-readable amount
to	str	Yes	—	Recipient on destination chain
slippage_pct	float	No	1.0	Slippage tolerance %
signer_address	str	No	null	Signer address (for approval check)

Response (extends cross-chain quote): native_fee, needs_approve, tx_steps

curl -X POST "https://sapi.woofi.com/v2/cross_chain/swap" \
  -H "Content-Type: application/json" \
  -d '{"src_chain": "arbitrum", "dst_chain": "base", "src_token": "USDC", "dst_token": "USDC", "src_amount": "100", "to": "0xYourWallet", "signer_address": "0xYourWallet"}'

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Supported Chains

Chain	ID	Native Token	Accepted Names
Arbitrum	42161	ETH	arbitrum, arb, arbitrumone
Base	8453	ETH	base
BSC	56	BNB	bsc, bnb, binance, bnbchain
Polygon	137	POL	polygon, matic, pol
Optimism	10	ETH	optimism, op
Avalanche	43114	AVAX	avalanche, avax
Ethereum	1	ETH	ethereum, eth, mainnet
Linea	59144	ETH	linea
Mantle	5000	MNT	mantle
Sonic	146	S	sonic
Berachain	80094	BERA	berachain, bera
HyperEVM	999	HYPE	hyperevm, hyper
Monad	143	MON	monad
zkSync	324	ETH	zksync, zksyncera

Native token: Use symbol ("ETH", "BNB", "AVAX", "POL", "MNT", "S", "BERA", "MON") or 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE.

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Important Notes

1. Best price by design — WOOFi queries WooPP + 1inch + ODOS simultaneously. Price >= max(all sources).
2. Flexible input — Chain names ("arbitrum") and token symbols ("USDC") accepted everywhere. No address lookup needed.
3. One call, full swap — /v2/swap returns quote + approval check + tx data. Just iterate tx_steps and sign.
4. Cross-chain via Stargate — /v2/cross_chain/swap bridges tokens between chains. tx_steps include LayerZero fee in value field.
5. Human-readable amounts — Pass "1.5" not wei. No unit conversion needed for input.
6. All tokens supported — Any ERC-20 or native gas token on any supported chain. No whitelist.
7. Cross-chain token resolution — src_token resolves against src_chain, dst_token against dst_chain. Same symbol maps to correct addresses on each chain.
8. Wallet signing required — API returns unsigned tx data. The user's wallet must sign and broadcast.