soldeck.funLaunch on Pump. Trade size off-market.
Launch Pump.fun tokens and negotiate wallet-to-wallet block trades with atomic Solana settlement.
Soldeck.fun contract address
CeRLM8xCx9V2f5nXZTTUZw4iisQmFLStzgFZVE2MpumpOne Solana transaction, signed by both wallets. Both legs settle together, or neither does. No escrow, no custody, no price impact on the curve.
No tokens launched here yet
Coins created with this site's launcher appear here once their launch is confirmed on chain.
Launch a token- Step 1 of 4
Post a signed offer
Sign an ask or bid in your wallet. It's a free message, not a transaction, and your assets never leave your wallet.
- Step 2 of 4
Negotiate
Counterparties accept or counter. Every counter is a new signed order; nothing earlier is ever edited.
- Step 3 of 4
Both sign one transaction
We build the settlement, re-check both balances, and each wallet verifies the exact bytes before signing.
- Step 4 of 4
Verify the receipt
Every settlement is checked against the chain and anyone can confirm it on a block explorer.
Create a Token-2022 coin with Pump's current create_v2 instruction, optionally with an atomic first buy. The mint key is generated in your browser and never sent to us.
Start a launchThe token transfer, the SOL payment and the disclosed platform fee travel in a single transaction. Solana executes all of it or none of it.
Read the protocolNo block trades yet
Settled OTC trades show up here with verifiable receipts.
Do you ever hold my tokens or SOL?
Never. An order is only a signed message. Your assets move once, inside the settlement transaction that both wallets sign, straight from one wallet to the other.
What stops someone changing the deal after I sign?
You sign the exact transaction bytes, so editing an amount, a recipient, the mint or the fee breaks your signature. Your browser also checks the transaction again before it asks you to sign.
What if I cancel after the other side signed?
The app stops collecting signatures and will not submit. A transaction you already signed can still land until its blockhash runs out, which usually takes a minute or two.
Why use OTC instead of selling on Pump?
A big sell into a bonding curve drags the price down as it fills. A block trade moves the whole size at one agreed price. The comparison we show is an estimate, not a quote.
Which tokens are supported?
Pump.fun tokens priced in SOL, on the bonding curve or on PumpSwap. Tokens with risky Token-2022 extensions, like transfer hooks, permanent delegates or a freeze authority, are turned away.