How it works.

What Offchange is

Offchange is a dark pool for memecoins on Solana. You post an order to sell or buy size in any launchpad coin. It never shows on a chart or an order book, and its price stays sealed until it fills. When someone crosses your price, both sides settle in one transaction, directly between wallets.

The trade never touches the coin's pool, so the chart doesn't move. Holders don't watch a whale walk out, and the buyer gets in under spot instead of pumping the price on themselves.

A fill, step by step

1. 1
   Place. Pick the coin, the size and your price: a discount to spot, or a fixed number. Selling or buying, the order looks the same.
2. 2
   Hidden. Your order sits in the pool where nobody can see it, other traders included. Holding $OFF lets you in; it doesn't let you look.
3. 3
   Match. Matching runs continuously. The moment another order crosses your price, yours fills, in full or in part.
4. 4
   Settle. Coin and SOL swap in one transaction, wallet to wallet. Either both legs land or neither does.
5. 5
   Print. The fill posts to the tape: the coin, the size and the price against spot. Never the wallets.

Watch it

Recorded on Solana mainnet with Phantom: a coin found, a pool opened, a fill and a cancel. Pick a step to jump to it.

Verified on mainnet

The recordings are one real run, with two fresh wallets and a little FARTCOIN. Every transaction in them is on chain: a hidden sell of 30, a market buy that filled 15 of it about 5% under spot, and a cancel that brought the other 15 back.

1. 1Hide sell order, 30 FARTCOIN52uai9xq7TcbAosbQD9yrbmd2pig36pCHnTrxtBLC6CANR3Gc5x4HuBkTWugpdSNHRUYQZjVyS7zAQWhxNYxDunFSolscan →
2. 2Market buy, 15 FARTCOIN filled3JnEX3Jpzzo2HghveGiWXDiVVg5xNggNWaBvwosfyFif9SRUEa4X8afyWhYaH24vH6DmCAgdjQeFXtSTT79Jvfg9Solscan →
3. 3Cancel, 15 FARTCOIN back4ihcp8AyeDRttZLWc5UK1c2Uvv9NhkK6QfYZXYNF9wXhxwLE3PyRPaQwonXb2RwQVfrqXgeX4XcaRNz5c1hcoi76Solscan →