LI.FI on herrenlos: deep EVM and Solana route coverage

herrenlos quotes several route providers at once and points you at the best executable one for your trade — that's the whole idea behind swaps here. LI.FI is one of those providers. Where Chainflip is the one that makes native cross-chain swaps (including BTC) possible, LI.FI is the one that brings deep coverage inside and between the EVM world and Solana. This post is what LI.FI is, why we integrate it, and how it behaves in the app.

What LI.FI is

LI.FI is a cross-chain routing layer. It aggregates both DEXes (for the swap part) and bridges (for the cross-chain part), then stitches them into a single path — so a request like "USDC on Arbitrum to ETH on Base" becomes one route it can find and price, even though it spans a swap, a bridge, and another swap under the hood. It also handles plain same-chain swaps, picking among the DEXes on that chain.

The practical upshot: LI.FI can reach a very large number of token pairs across many EVM chains — herrenlos maps it across Ethereum, Arbitrum, Base, Optimism, Polygon, BNB, Linea, and Sei — plus Solana. It's breadth of coverage, not a single venue.

Why herrenlos integrates it

No single provider is best at everything. Chainflip is unmatched for native cross-chain legs like Bitcoin, but it deliberately only quotes pairs it can natively settle. LI.FI complements that with reach in the places aggregators are strongest:

• Same-chain and cross-chain EVM — the bulk of everyday token swaps, and the EVM-to-EVM bridges Chainflip's native-only model doesn't cover.
• Solana in-page — swaps that involve Solana, signed in your own wallet.
• Breadth — a long tail of pairs and tokens that other providers may not route.

It's the second production execution path in herrenlos alongside Chainflip — not because it's favored, but because it's the one that most often has a route when the pair is EVM- or Solana-shaped.

How it fits the multi-provider model

When you enter a pair and amount, herrenlos asks LI.FI for a quote in parallel with the other providers, and ranks every result by what you'd actually receive after the route's own costs — never by who pays us. LI.FI is one competing line in that ranking. Sometimes it wins; sometimes another provider is better for that exact pair and size, and then that one is highlighted.

herrenlos requests LI.FI quotes through its own server (a proxy at /api/quote/lifi), so the integration credential stays server-side and the browser only ever talks to herrenlos. That's an implementation detail you never see, but it's why a provider hiccup degrades gracefully instead of breaking the page.

Non-custodial, the whole way

Execution happens in your own wallet, in-page. You sign the transaction that starts the route; herrenlos never holds your funds and there's no account or KYC. Where the token and chain support it, LI.FI's execution uses Permit2 or a native permit, so an approval can ride along with the swap instead of being a separate step — and where they don't, it falls back to a standard ERC-20 approval. Either way, the signing is yours.

Non-custodial isn't a mode you switch on — it's the only mode. Your keys never leave your wallet.

Honest about the limits

• Route availability varies by pair and size. LI.FI covers a lot, but not everything, and a route that exists at one size may not fill at another. The quote panel is the source of truth for any specific trade.
• A quote is a snapshot. Prices move; the amount you see is an estimate until the route actually executes. For cross-chain routes there's a source transaction and then a destination leg that settles afterward, which herrenlos tracks to completion.
• Providers rate-limit and occasionally go down. When LI.FI can't answer, herrenlos routes around it where it can and is honest when it can't — a missing provider means a missing route, never an invented one.
• It's one provider among several. LI.FI is not herrenlos and not the only route. Surfacing when another provider is the better executable option is the entire point of quoting in parallel.

Try it

The clearest way to see LI.FI is to watch it compete: open the swap page, enter an EVM or Solana pair — say USDC on Arbitrum to ETH on Base — and see LI.FI ranked against the others. For the native cross-chain side of the story, see Chainflip on herrenlos; for what's shipped and what's next across providers, the roadmap lays it out.