Bring two tokens.
A pool holds a pair of assets. Their starting amounts set the initial price — so your ratio matters.
A meme with a purpose. Meet $HOPPER — a little frog bringing people together to explore liquidity on Solana.
Two tokens. One shared pool.
Build a real pool with test tokens. Every transaction stays on Devnet.
Set the starting ratio for your practice token / SOL pool.
Load a pool to quote real Devnet reserves. Slippage limit: 1%.
A pool holds a pair of assets. Their starting amounts set the initial price — so your ratio matters.
Traders swap against pooled reserves. Prices shift with each trade; liquidity providers take on risk.
Practice on Devnet. Understand fees, impermanent loss, and who can move liquidity before committing value.
Trust should be something you can check. Our commitment is to make the important details visible, admit what isn't ready, and build responsibly.
Visit the launch platform ↗No site can guarantee against loss or a rug pull. Verify mint authorities, program controls, and liquidity ownership on-chain. Pool deposits are held in Raydium program vaults. LP tokens belong to their wallet holders and are not locked by this site. Protocol admin and upgrade controls remain a risk.
Connect Phantom or Solflare, set it to Devnet, and obtain test SOL. Signing happens only after you review and approve a transaction.
View address on Devnet ↗No canonical HOPPER mint is configured. Each practice-token creation makes a new mint with 1,000,000 tokens, 6 decimals, revoked mint authority and no freeze authority. No name/logo metadata is installed. Devnet tokens have no real monetary value and the network may reset.
Yes. Connect your wallet in Devnet mode, get test SOL, create practice tokens (or paste an existing standard SPL mint), then review and approve pool creation. A separate wallet approval is needed for every action. Pool creation has a protocol fee, rent and network fees in test SOL. Keep at least 0.3 test SOL for setup plus the SOL you want to deposit. You can then load the resulting pool and swap in either direction.
A reviewed mainnet adapter, verified mint and pool addresses, dedicated RPC, transaction simulation, security testing, and published authority and liquidity policies are required. Changing an endpoint alone is not sufficient.
See Solana's cluster documentation and Raydium's CPMM integration guide. Raydium documents Devnet-specific program and fee-account configuration. This release builds Raydium CPMM instructions locally and submits wallet-approved transactions only to a genesis-verified Devnet RPC.