Pay

Direct payment to a Solana address, or any x402 endpoint.

Connected to Solana devnet with a configured indexer and prover — payments submit for real and the zero-knowledge proof is generated in your browser. Not audited; uses a dev proving key. Use throwaway devnet USDC only — never real funds.

Wallet balance

Connect a wallet to view its balance.

Need devnet test funds?

This is a free devnet test build. Claim throwaway tokens, then come back and deposit — no real money involved.

Circle USDC faucet ↗ — choose Solana Devnet, paste your wallet, claim USDC. (You can claim repeatedly.)
Solana SOL faucet ↗ — a little SOL for transaction fees (only if your wallet is empty).

The pool accepts only this USDC-Dev mint:

4zMMC9srt5Ri5X14GAgXhaHii3GnPAEERYPJgZJDncDU

If you claimed “USDC” elsewhere and the deposit fails, the mint doesn’t match — use Circle’s faucet above.

Recipient (Solana address)Amount (USDC)Note passphrase

The note stays encrypted on this device. The passphrase only leaves memory long enough to decrypt and re-encrypt the post-payment note.