Quickstart
Deploy a shielded token to devnet and send your first private transfer.
# point the CLI at devnetsolana config set --url devnetanchor init my-shielded-tokennpm i @cinder/sdkOpen the quickstart
Confidential SPL tokens
Transfers that settle in the open and stay quiet about the amount.
Cinder is a shielded token layer for Solana. Balances are encrypted on-chain, while every transfer still settles and verifies like any other.
Balance
••••••CNDR
Fee per transfer: 0.000005 SOL
Amounts are encrypted
CNDR on Solana
CNDR is an SPL token. It works with any Solana wallet, and shielded balances are opt-in per account.
- Ticker
- CNDR
- Token standard
- SPL Token (Token-2022)
- Network
- Solana mainnet-beta
- Decimals
- 9
- Mint address
- Placeholder Published at launch
- Gas token
- SOL
Add CNDR to your wallet
- Install a Solana walletPhantom, Solflare, or Backpack all work.
- Fund it with a little SOLEvery transfer pays a small network fee in SOL.
- Add the CNDR mintPaste the mint address from this page once it is published.
- Turn on shielded balanceOpen the token account and choose Encrypt balance.
Build with Cinder
Programs are written in Rust with Anchor, and apps talk to them from TypeScript.
- Anchor programsAdd shielded balances to a Solana program.
- TypeScript SDKEncrypt, transfer, and decrypt from your app.
- Wallet integrationConnect with the Solana wallet adapter.
- Code examplesPrivate payroll, sealed-bid auctions, and more.
- Technical paperHow proofs and shielded balances fit together.
No guides match that. Clear the filter to see all five.
Packages
Open-source libraries for each layer of your stack.
cinder-program
Rust crate for on-chain shielded token logic.
cargo add cinder-program@cinder/sdk
TypeScript client for browsers and Node.
npm i @cinder/sdkcinder-cli
Command-line tool for minting and testing on devnet.
cargo install cinder-cliConnect a wallet
Link a Solana wallet to Cinder. Connecting shares your public address with this page. It doesn't move funds or ask you to sign anything.
Choose a wallet
No wallet extension found on this page. Extensions only load on pages opened in a normal browser tab, so if you're viewing a preview, open the page's own link instead.
Connection
Not connected
Cinder never asks for your seed phrase. If any site does, close it.
Add wallet support to your app
The Solana wallet adapter handles detection, connecting, and signing across many wallets. Install it, then wrap your app.
npm i @solana/wallet-adapter-react @solana/wallet-adapter-react-ui @solana/wallet-adapter-wallets @solana/web3.jsimport { ConnectionProvider, WalletProvider } from "@solana/wallet-adapter-react";
import { WalletModalProvider, WalletMultiButton } from "@solana/wallet-adapter-react-ui";
export function App() {
return (
<ConnectionProvider endpoint="https://api.devnet.solana.com">
<WalletProvider wallets={[]} autoConnect>
<WalletModalProvider>
<WalletMultiButton />
</WalletModalProvider>
</WalletProvider>
</ConnectionProvider>
);
}
Wallet questions
What connecting does, and what to check when it doesn't work.
What does connecting share?
Only your public address, which anyone can already see on-chain. Your keys and seed phrase never leave the wallet.
Can this page move my funds?
No. This page never requests a transaction. If an app built on Cinder asks you to sign something, your wallet shows the details first and you can reject it.
Which wallets work?
This page detects Phantom, Solflare, and Backpack. The wallet adapter shown above supports many more, so your own app isn't limited to these three.
Why isn't my wallet detected?
Reload the page after installing the extension, unlock it, and open this page in a normal browser tab. Extensions don't load inside embedded previews.
Launch a coin
Set up your token, then run the commands this page prepares. Nothing is signed here, so your keys stay on your machine.
Your token
Mainnet-beta creates real accounts that cost SOL, and a mint can't be deleted. Run these on devnet first.
You'll need the Solana CLI and cargo install spl-token-cli.
After you launch
A few checks before you tell anyone about your coin.
- Check the mint in a Solana explorerConfirm the supply, decimals, and authorities match the summary above.
- Send a small test transferMove a tiny amount to a second wallet and make sure it arrives.
- Publish the mint addressShare it only from your official channels so people can tell the real coin from copies.