Flip vs MetaMask Bridge

Honest head-to-head between Flip and MetaMask Bridge for cross-chain swaps, including native Bitcoin. Both are non-custodial. Both let you swap from one chain to another without leaving your wallet. The interesting differences are in how the route is chosen, what you actually receive, and what the all-in cost looks like once you read the fine print.

The short version

MetaMask Bridgeis an aggregator inside the MetaMask wallet. When you ask for a cross-chain swap, it queries several third-party routing providers (Teleswap-via-Rango, XO Swap, Relay, and others depending on the pair) and surfaces the options as a list. You pick one; MetaMask routes the transaction through that provider's contracts. The fee structure is whatever that provider charges, plus MetaMask's own service fee on top.

Flipis a single-route product on top of NEAR Intents' solver network. There's no list of options because the solver auction is the comparison — solvers compete to fill your order at the best price, and you see the winning quote. One flat protocol fee, no per-route surprise.

The numbers

Concrete example, captured 2026-05-16, swapping ~$2,222 of ETH for native BTC. MetaMask's aggregator surfaced three routes; Flip returned a single solver-routed quote. Side by side:

Flip: 0.0281069 BTC ($2,222 input). Effective cost −0.16%. ~8 min estimated.

MetaMask · Teleswap via Rango (best of 3): 0.028 BTC. Stated total cost $17.85.

MetaMask · XO Swap: 0.0277 BTC. Stated total cost $38.42.

MetaMask · Relay: 0.0274 BTC. Stated total cost $56.96.

Flip's output is 0.0001069 BTC larger than the best MetaMask route — at the BTC price during the snapshot, roughly $8.50 more in your wallet. Compared against XO Swap and Relay, the spread is ~$30 and ~$50 respectively. None of these include MetaMask's own service fee, which sits on top of the routed cost.

Per-quote results vary with pair, size, network conditions, and which routes the aggregator decides to surface. The point of the snapshot isn't a permanent claim — it's that on the same pair, at the same moment, a focused single-route product was beating the aggregator's best option.

Routing model — the core difference

MetaMask Bridge:Surfaces 1–N options from external aggregators / DEX router providers. Each option is a wholly different protocol with different settlement mechanics, different fee structures, different security posture, and different track records. MetaMask labels the cheapest one but doesn't take responsibility for the execution — that's on the routing provider.

Flip:One route, one settlement model. The comparison happens before you see the quote — solvers post bids, the best one wins, you see the winner. No menu, no per-option homework. The trade-off is that if Flip's solver network doesn't cover an exotic corridor as well as a niche aggregator, you'll see that in the price; you can always run the same pair on both and decide.

Custody during settlement

MetaMask Bridge:Depends entirely on which route is selected. Teleswap settles via Rango's infrastructure; XO Swap and Relay each have their own custody model. Reading the docs of three different protocols to understand who holds the asset between the two legs is the price of using an aggregator.

Flip: Single, documented model — independent solvers post collateral and fill your order directly. The protocol slashes their collateral and refunds you if they fail. One model to understand, not three.

Fees

MetaMask Bridge:Two layers — the routing provider's fee (variable per route; in the snapshot above, $17.85 to $56.96 on a $2,200 swap) plus MetaMask's own service fee on top. The total is what MetaMask shows as the route's "total cost."

Flip:One layer — flat 0.5% protocol fee, displayed in every quote, environment-controlled so the displayed claim never drifts from what's charged.

UX and product polish

Subjective area. MetaMask Bridge lives inside the wallet you're probably already using to sign — that's a real convenience win for users who don't want a second site in their workflow. Flip is a separate site with a focused swap interface, premium typography, native sanctions and warning UX, and per-quote real-data comparisons (verified savings vs CEX baseline displayed inline). Either is defensible depending on whether you value all-in-one or focused.

When MetaMask Bridge is the right choice

Pick MetaMask Bridge if you're already in MetaMask and the friction of switching to a separate site outweighs a few dollars of price improvement. If you're moving a small amount where the spread is rounding-error. If the pair you want isn't one Flip's solver network covers well and the aggregator surfaces a route that does.

When Flip is the right choice

Pick Flip if you want the best price on a covered corridor without auditing three different routing providers. If you prefer one settlement model you can fully understand over an aggregator's menu of options. If you want a focused product with native warning UX (sanctions screening, address validation, BTC-fee sanity checks) instead of a wallet feature bolted onto a wallet. If the snapshot above ($8–$50 saved on a $2,200 swap, depending on the alternative) repeats on your pair.

Try both

Run the same swap in both. The number that lands in your destination wallet, minus the number you sent, is the only comparison that matters. See the full feature matrix at /compare and the THORSwap / Jumper head-to-heads at /vs/thorswap and /vs/jumper for two more reference points.

How we measured

The numbers in "The numbers" come from side-by-side quote requests captured 2026-05-16 for a ~$2,222 ETH → native BTC swap. MetaMask Bridge values are the routes it surfaced and the "total cost" it labelled each with. Flip's value is the live quote returned by its API at the same moment. Per-quote results will vary; the snapshot is one data point, not a permanent claim. We'll publish per-corridor measured data at flipdex.co/data once we have enough samples — see /changelog for status.