1/ Harmonic Protocol runs through x402 requests, signed trade messages that enter a shared public mempool on @base Each request can be picked and executed by any human validator, replacing automated miners with real participants.

Human-validated. 41,648 USDC have been tipped through the dApp. $HARMO scan: https://t.co/pJheC48aUk

Liquidity is locked. $HARMO x402, but human-validated. https://t.co/ItQzOIHCJ8

Thanks @harmonicprtc 1350 $USDC BY SOLVING 5 CAPTCHA

600 USDC by solving CAPTCHA. How to become a $HARMO validator: Every transaction on the Harmonic dApp includes a tip, set by the user submitting the swap (minimum 1 USDC) All requests enter the public mempool, protected by CAPTCHA to prevent bots Any user can access this

SOLD OUT IN 9 MIN. 🎉 $HARMO is now live on dexscreener: https://t.co/kpQHHLVviE

$HARMO mint is live It will remain open until it reaches 100,000 USDC. Mint here: https://t.co/yVUAmrjbNf

Most x402 projects use EIP-3009 TransferWithAuthorization function: any address can execute the authorization, and the transfer goes through as long as the signature is valid. $HARMO uses ReceiveWithAuthorization function instead, meaning: - only the receiving address can

If users choose not to trade through the dApp, a 4% swap fee applies This differential is designed to encourage trading through the human-validated flow, where $HARMO is executed as intended.

6/ Users will be able to trade $HARMO directly through the dApp, as well as on Uniswap in the usual way. On the dApp, a 1% fee is applied to every transaction These fees go directly to the human validators operating the $HARMO layer.

5/ This minting phase acts as the initial liquidity entry point for $HARMO When the 100k USDC cap is reached, we will add liquidity to a Uniswap V2 pool Minting phase will then close, and trading will open through the full Harmonic Protocol

4/ Once a validator completes the execution, $HARMO tokens are minted and sent directly to the user's wallet (ReceiveWithAuthorization function of EIP-3009) USDC is only debited after a successful on-chain mint, and all tips are transferred entirely to executors.

3/ Validators compete to execute mint requests by selecting them from the mempool, solving a CAPTCHA, and confirming execution through the Harmonic Router They pay the on-chain gas cost and earn the user’s tip, making the process entirely non-custodial for minters.

2/ To mint, users select a preset amount (25, 50, 100, or 250 USDC) and set a tip of at least 1 USDC. The request is then signed with no ETH required and enters the shared public mempool, where validators can pick it. Higher tips may result in faster validation.

It does not rely on traditional transactions; The minting phase uses the same x402 request flow as $HARMO trading: gasless, signed, and human-validated.

🧵 Minting Phase Overview 1/ At launch, Harmonic introduces a minting phase capped at 100,000 USDC, representing 66% of the total supply (66,000,000 $HARMO).

"wen?" $HARMO — November 9 17:00 UTC | 12:00 EST | 09:00 PST

我们想着所有人类。 我们确信你们会喜欢这个项目。 $HARMO

Getting into $HARMO be like:

Private x402. c402. @c402markets ERC-8004. ERC-7857. x402 is not done yet. $HARMO

We're onto something here. x402 - $HARMO way