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Build the transaction here, sign it in the wallet

Corto.Fun prepares the unsigned transaction and routing data. The user checks the payload and signs it in Phantom, Backpack, or another wallet instead of giving signing control to the server.

When to use this page: choose Local Build when you want Corto routing and payload generation, but the final signature must stay in the user's wallet.

Build Form

Build parameters

Public Key Mint address Action Amount Amount mode Buy: amount is typically in SOL. Slippage % (1-99) Pool Priority Fee SOL (opt.) User memo (opt.) Partner address (opt.) Partner fee ratio (opt.) Partner fee fixed SOL (opt.) Memo is optional. Your memo has priority. If branded memo is enabled and both fit, runtime appends via corto.fun. If not, your memo stays unchanged.

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Snippet follows the current action field and selected language.

Response

Raw JSON response

Status: —

{}