Developers
This section is for builders. Whale.fun runs the launch + liquidity + token logic itself — you extend the protocol from the outside without forking anything. Pick the path that fits you:
• Vault developers — build a custom tax mechanism (your own dividend/buyback/staking logic) and let anyone launch a token that uses it. Start with "Build a custom vault". • Launcher / integration developers — deploy tokens through Whale.fun's factory from your own app, and read on-chain quotes/valuations. See "Contracts & integration". • Indexers / wallets / bots — index launches and trade tokens. See "Contracts & integration".
Most developers come here to build a custom vault — that's the deepest extension point. The next page is a complete, copy-pasteable walkthrough.