Flashnet
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Cross-chain swap APIs compared. Flashnet and the alternatives, side by side.

Flashnet, Relay, NEAR Intents, deBridge and LI.FI side by side on what decides a swap integration for a wallet: how a swap is funded, firm and exact-output quotes, token coverage, Bitcoin and Lightning, refunds and fees.

Every fact about another provider is from its own docs, site or API, linked beside it, and was checked on October 27, 2026.

Comparing deposits instead? See Crypto deposit APIs compared.

Use cases: Wallets.

Cross-chain swap APIs compared, as of October 27, 2026
FlashnetRelayNEAR IntentsdeBridgeLI.FI
Orders
Swap with a plain transferYesEvery quote returns a deposit address; paying it creates the order. No wallet connection, approval or contract call.SourceYesA quote can return a deposit address instead of a transaction to sign.SourceYesA 1Click quote returns a deposit address on the origin chain; the swap starts when funds arrive.SourceNoEvery order is a transaction the user signs. No deposit-address flow is documented.SourcePartlySmart Deposit Addresses are an enterprise feature, enabled per integrator. Native ETH and BNB can't be the input.Source
Firm quotesYesA quote's price holds for 2 minutes within your slippage. Fixed-output quotes commit to the amount out.SourceNoQuotes are re-priced when filled, with a minimum-output guard. No stated validity window.SourcePartlyOutput bounded by your slippage and a deadline you set. No fixed window in which the price holds.SourceYesThe quoted rate is guaranteed if the user signs within about 30 seconds.SourcePartlyOutput bounded by a minimum. Rates are held for 24 hours only on opted-in deposit-address routes.Source
Exact-output quotesPartlyInto Lightning from most assets, and from Lightning into most. Fixed-output quotes, for approved partners, commit to the amount out.SourceYesEXACT_OUTPUT delivers exactly the amount asked, or fails and refunds on the origin chain.SourceYesEXACT_OUTPUT fixes the amount out; unused input goes back to your refundTo address.SourceYesA fixed amount out, with the amount in worked out for you; on same-chain swaps the amount out is a minimum.SourcePartlyA reverse quote sets the input so the user receives at least the amount; it executes as exact input.Source
Any token by addressYesAny SPL or ERC-20 token by address, in or out, on Solana and EVM chains, routed through a stablecoin on its own chain.SourceYesTokens with solver or DEX liquidity on most chains; Bitcoin, Tron, TON and XRP take listed tokens only.SourceNoTokens come from 1Click's token list; naming a token by contract address isn't documented.SourceYesAny token with DEX liquidity indexed by aggregators such as 1inch or Jupiter, settled through reserve assets.SourceYesAny token by address on its supported chains, liquidity permitting; high-tax tokens are rejected.Source
Same-chain swapsYesSuch as USDC into BONK on Solana, priced against Jupiter on Solana and DEX venues on EVM chains.SourceYesThrough the same quote API, by DEX meta-aggregation on the source chain.SourceYesOrigin and destination assets are set separately, so both can be on one chain.SourceYesThrough a separate same-chain swap API, including on Solana and Tron.SourceYesThrough the same quote endpoint.Source
Automatic refundsYesOrders that can't fill within the quote's bounds go back to the refund address you set.SourceYesRefunds go to the refundTo address on the origin chain, less gas. Without one, there's no automatic refund.SourceYesUnfilled or underpaid deposits go to your refundTo address after the deadline.SourcePartlyBy default the user cancels on the destination chain. Auto-cancel needs deBridge's approval, and refunds usually arrive as USDC.SourcePartlyIf a bridge step lands but the swap after it fails, the user is refunded in the bridged asset on the destination chain.Source
Networks
BitcoinYesNative BTC on Bitcoin L1, in and out.SourceYesNative BTC, by wallet signature or deposit address.SourceYesLegacy, SegWit and Taproot addresses.SourceNoSupported chains are EVM chains, Solana and TRON.SourceYesBy wallet-signed transaction; Bitcoin as a deposit-address source is in beta.Source
LightningYesIn and out over Lightning, including BOLT11 invoices and Lightning addresses.SourceNoNot among the chains in Relay's API.SourceNoNot among the supported chains.SourceNoNot among the supported chains.SourceNoNot among LI.FI's chains.Source
Bitcoin credited before confirmationYesEligible deposits can be credited before the first confirmation, for a fee. Otherwise after 1 confirmation.SourceNoProcessed after 1 confirmation, or 2 for high-value deposits.SourceNoCredited once mined; the API notes Bitcoin may take around an hour.SourceNoNo Bitcoin support.SourceNot documentedIt depends on the bridge filling the route.
Hyperliquid (HyperCore)YesUSDC and USDe delivered to HyperCore.SourceYesPerps and spot USDC, and other spot tokens.SourcePartlyUSDC only, to the perps balance.SourceNoHyperEVM is listed; HyperCore isn't.SourceYesDeposits, withdrawals and spot swaps.Source
SolanaYesSOL, USDC, USDT and other SPL tokens.SourceYesIncluding deposit addresses.SourceYesSOL and SPL tokens.SourceYesSupported, with a flat fee of 0.015 SOL.SourceYesSOL and SPL tokens.Source
TronYesTRX and USDT.SourceYesListed in Relay's chains API.SourceYesTRX and TRC-20 tokens.SourceYesSupported.SourceYesSupported.Source
XRPYesXRP.SourceYesListed in Relay's chains API.SourceYesClassic addresses with destination tags aren't supported through 1Click.SourceNoNot among the supported chains.SourceNoNot among LI.FI's chains.Source
ZcashYesZEC.SourceNoNot among the chains in Relay's API.SourcePartlyTransparent addresses only.SourceNoNot among the supported chains.SourceYesSupported.Source
Operations
Your own fee on every orderYesSet a fee per order or per affiliate, from 1 to 9,999 bps, and claim it on the chain and asset you choose.SourceYesApp fees in bps, accrued in USDC and claimable to an EVM address.SourceYesApp fees in bps, up to 500 bps combined.SourceYesAn affiliate fee on cross-chain and same-chain swaps.SourceYesA fee percentage, forwarded to your fee wallet.Source
Sanctions and AML screeningYesSource and destination addresses checked with Elliptic and other providers on every order.SourceYesWallets screened when an order fills; sanctioned addresses and currencies rejected.SourceYesQuotes screened with TRM Labs, Binance AML and other providers.SourceNot documentedNo screening policy published.PartlyToken-risk screening with Hypernative. No documented sanctions or AML screening of deposits.Source
WebhooksYesWebhooks, plus a server-sent event stream of order status.SourceYesWebhooks and a websocket status stream.SourceNoPoll the status endpoint by deposit address.SourceNoPoll the order tracking API.SourceNoPoll the status endpoint every 10 to 30 seconds.Source
Platform feeSet per partner and route, and itemized on every quote.Source0% on same-token bridges; 0.01% on stablecoin, 0.06% on major-token and 0.15% on other swaps, plus gas.Source20 bps with an API key (1 bp on stablecoin and same-asset routes), 25 bps without, plus a 0.0001% protocol fee.SourceA flat fee in the source chain's gas token (0.001 ETH, 0.015 SOL) plus 4 bps, before solver margin and gas.Source0.25% on every transaction, plus the fees of the bridges and DEXs it routes through.Source
Support24/7, with direct access to the engineers who run settlement.Support center with live chat and email. No published SLA.SourceA Telegram community and a partner portal. No published SLA.SourceDiscord and GitHub. No published SLA.SourceA partner portal. No published SLA.Source

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