maker on the VPS). Must end in /api: the maker serves /api/status, /api/pairs, /api/quote. -->

TestnetSwap · non-custodial cross-chain atomic swaps (tLTC ↔ tBTC, tXMR/sXMR → tBTC/tLTC)

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Swap testnet coins on demand, non-custodially

Atomic swaps between Litecoin testnet (tLTC) and Bitcoin testnet4 (tBTC) , plus experimental Monero (tXMR/sXMR) swaps into either, where a maker offers them. You hold your own keys, so nobody ever holds your coins. If anything stalls, your browser can refund what you locked, minus network fees, after the deadline.

● Checking maker…<br>Testnet only · free coins, no real value

Swap

You send

tLTC<br>tBTC<br>tXMR<br>sXMR

You receive (estimated)

Rate -

Min / Max -

Maker liquidity (free) -

Swap now →

🔒 Non-custodial<br>🔑 Keys never leave this browser<br>⚡ No sign-up

The swap runs in your browser on the swap page. Or use it in TestnetWallet.

Live

tBTC free

tLTC free

Maker uptime

All-time totals

Swaps completed

Completion rate

tLTC volume

tBTC volume

How it works

Setup<br>You pick a pair and amount. Your browser and the maker agree the rate and two refund deadlines over a relay that only passes messages. It holds no keys or coins.

You lock<br>Your browser locks your coins in a hash-timelock contract (HTLC) on the send chain. Only you can refund it after your deadline.

They lock<br>The maker sees your funded contract and locks the other coin in a matching HTLC on the receive chain, with a shorter deadline.

You claim<br>You claim the maker's coins by revealing a secret. That same secret lets the maker claim yours. Swap complete, atomically.

The worst case if anything stalls: you reclaim what you locked, minus network fees, after your deadline. A maker can never take your coins: it can't claim yours without revealing the secret that lets you claim the maker's coins. Read the details →

What this is

Non-custodial & atomic<br>The service never holds your funds. Coins are only ever in a contract that completes the swap or refunds to you.

Testnet only<br>tLTC, tBTC and tXMR/sXMR are worthless test coins. This is infrastructure for builders, not a market. The rate is a fixed nominal value.

An open maker network<br>Anyone can run a maker and join the network, and you pick which one fills your swap. Your safety never depends on the choice. Pairs are tLTC↔tBTC, plus tXMR/sXMR→tBTC (or tLTC where a maker offers it).

Monero (tXMR / sXMR → tBTC or tLTC)<br>Monero swaps are experimental and run locally in your browser, where a maker offers them, using a cross-curve adaptor-signature protocol instead of the HTLC design. See how it works. Need test coins first? Use the faucet.