sendfun-sdk

Rust SDK for the send.fun programs on Solana.

• launchpad: token creation, bonding curve trades, migration.
• dex: AMM trades after migration.
• nexus: staking and partner fees.
• transfer_hook: the Token-2022 transfer-hook accounts of a trade. It resolves them from accounts that you fetch, without RPC.

The SDK builds instructions, decodes accounts and events, and calculates quotes (launchpad::quote, dex::quote). It has no RPC client and does not send transactions.

Fetch accounts with your own client. Compatible: solana-rpc-client 3.x and 4.1+, blocking and nonblocking. Not compatible: 4.0.x.

Decode an account with the from_account function of its type. from_account checks the owner, then the discriminator:

use sendfun_sdk::launchpad::accounts::BondingCurve;

let account = rpc.get_account(&address)?;
let curve = BondingCurve::from_account(&account.owner, &account.data)?;

get_account fails when the account does not exist. For an account that can be missing, use get_account_with_commitment. Its value is None for a missing account. Decode with from_account_maybe. It returns Ok(None) for an uncreated PDA that holds lamports.

Install

cargo add sendfun-sdk

Optional features:

• serde: Serialize and Deserialize on accounts, events and types.
• anchor: anchor-lang interop for on-chain callers.

Rules

• For a trade, read platform_config from the bonding curve or the pool.
• A partner other than DEFAULT_PARTNER must sign.
• constants::find_platform_address(slug) returns the key of a platform.
• Do not edit the generated modules. They come from the program IDLs.

Documentation

https://docs.send.fun

License

MIT, see the LICENSE file.