Joined August 2021
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AI에게 지갑을 줬다면, “보낼 수 있는가”보다 “누구에게 보내도 되는가”가 더 중요합니다. That’s why we built Q402 Reputation Gate.
AI agents shouldn’t pay every wallet they’re told to. Introducing Q402 Reputation Gate. Before settlement, Q402 verifies the recipient’s ERC-8004 agent identity and checks whether it meets your reputation threshold. No match. No trust. No payment. Programmable trust for agent payments. Live through Q402 Hooks in Claude, Codex, and MCP clients.
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Everyone building agent payments is solving the wrong half of the problem first. The hard part was never letting an agent spend money. That's easy. The hard part is everything that has to be true before you'd actually let it run unattended. An agent that can pay anything to anyone isn't autonomy, it's a liability you haven't noticed yet. So we built the other half. Q402 Hooks 1.0 is the permission layer. The agent decides what to pay. Q402 decides what it's allowed to pay. Spend caps, recipient allowlists, time windows, approval holds, reputation and compliance gates. Every payment gets checked before a single token moves. That check is what makes the autonomy deployable instead of theoretical. You stop choosing between "agent does it itself" and "human signs off on everything," because the rules carry the judgment you'd otherwise have to make by hand. Live on BNB Chain. I put real time into the MCP side, getting Gasless Payment and the Agentic Wallet to actually work, not just demo. Video's in the post. Autonomous, and governed. Both words matter.
An AI agent can decide what to pay. Q402 decides what it's allowed to. Q402 Hooks 1.0 - Live on @BNBCHAIN. Set spend caps, recipient allowlists, time windows, approval holds, reputation compliance gates. Every payment is checked before funds move. Autonomous, and governed. Download the MCP: npmjs.com/package/@quackai/q…
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AI가 "결제 완료됐습니다"라고 말하는 것은 증명이 아닙니다.그래서 Q402는 모든 결제에 대해 서명된 Trust Receipt를 만들고, 누구나 서명을 검증해 발급 주체를 확인할 수 있게 했습니다. 트랜잭션 해시, 체인, 금액, 정산 방식이 전부 담깁니다.가스 없는 결제에서 시작해 정책으로 통제되는 실행 레이어가 되기까지, Q402가 지금 어디에 서 있는지 정리한 글입니다. 한계와 로드맵까지 숨기지 않고 적었습니다.
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아비트럼에 Q402 올라간 게 개인적으로 의미 있는 이유: 이더리움 L2 중 TVL 1등 체인에서 에이전트가 ETH 없이 USDC로 결제한다는 거임. 에이전트 입장에서 가스 토큰 관리는 그냥 마찰이고, 이 마찰이 사라지면 페이먼트 빈도 자체가 달라짐. 10개 체인 깔면서 계속 확인하고 있는 부분.
Q402 is now live on @arbitrum. Your AI agent just stopped asking for gas money, on the largest Ethereum L2. Sign once, settle in USDC or USDT, no ETH required. npm install @quackai/q402-mcp. Plug it into Claude, Cursor, Cline, Codex, or any MCP client, and your agent gets gasless payments, recurring payments, and Agentic Wallets out of the box. q402.quackai.ai/
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Replying to @Phavorable
60K gasless에 10K MCP면 이미 실험장은 열린 거고, 이제 규칙 붙이는 타이밍이네요. 에이전트 지갑은 한도/기록 없으면 바로 무서워져서요 ㄷㄷ
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결제 인프라는 깔았습니다. 이제 그 위에 올라가는 게 진짜. 에이전트한테 "지갑"을 준 다음 단계는 "규칙"을 주는 것. 자율적인데, 통제 가능한.다음 발표가 그겁니다.
Q402 by the numbers: 60,000 gasless stablecoin payments settled 10,000 MCP downloads across 10 EVM chains Agents aren't just installing Q402, they're paying with it. Every transaction carries a signed, verifiable Trust Receipt. Every gas fee sponsored. Install the MCP: npmjs.com/package/@quackai/q…
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사람만 온체인 신원을 갖던 시대는 끝났다. 이제 AI 에이전트가 직접 지갑을 들고, Q402로 결제하고, 활동 기록으로 평판을 쌓는다. 시작은 서명 한 번. 이런 게 진짜 agentic economy지. 8004scan에서 확인 👇 q402.quackai.ai/dashboard
Q402 Agent Wallet now supports public agent registration. With one signature, builders can mint an agent NFT on BNB Chain and link the agent wallet as the Q402 payment endpoint in metadata. From there, reputation starts building through real Q402 usage. More transactions → more activity data → more reputation. Viewable on 8004scan. Your AI agent is now trackable on-chain. Register Now: q402.quackai.ai/dashboard
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1 months ago we shipped Q402 on Mantle. Today @Mantle_Official put it on the main slide of State of Mind Ep. 09. If you're building for the Turing Test Hackathon, your agent shouldn't be asking for gas money. Q402 is there for that. Come use it.
ICYMI: Mantle State of Mind Ep. 09. We'll keep this short. Not optional if you’re building for the Turing Test Hackathon. Listen on 2x if you have to, and jump straight to the parts that matters for you 👇 00:00:00 - Shoutout to Mantle's community creators @VanderMR10, @MR_3D_Artist, @swandogs, @WonderBoy023 00:11:31 - Opening by @Gem3a 00:13:22 - May updates w/ @joshuacheong@xStocksFi's xChange is live on Mantle → Atomic RFQ and Limit Order at @Fluxion_network for a better trading exp → Mantle Q1 report from @nansen_ai: 6.6M total txns → @QuackAI_AI gasless agentic payments, live on Mantle → @billions_ntwk's $BILL and @OpenGradient's $OPG on Mantle & @Bybit_Official → Mantle Squad Americas: Consensus Miami recap 00:26:23 - $110K in API credits for builders → Sponsored by: @Elfa_AI, @SurfAI, @alt_layer, @nansen_ai → Claim your free credits at forms.gle/YHxGEG6nmNjcLXkz5 → What each sponsor is building, offering, and how builders can use it 00:58:43 - 1:1 direct mentorship w/ @whisker17 & @joshuacheong → Direct advice from the Mantle team → Two builder demos: event data onchain & AI portfolio management → Open Q&As This should give you what you need. Now back to building, and we’ll see you on the next one.
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AI 에이전트가 직접 결제하는 흐름, 이제 5분이면 테스트 가능합니다. approval도, gas도, 키 노출도 없이 BNB Chain에서 실제 USDC/USDT 송금. 빌더라면 sponsored 2,000건 한번 돌려보세요. AI 클라이언트에서 바로 동작합니다. claude mcp add q402 -- npx -y @quackai/q402-mcp
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Phavorable retweeted

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Agentic Payment가 다소 추상적으로 느껴질 수 있지만, "Subscription에서 Pay-for-Use로의 전환"이라는 흐름으로 보면 훨씬 직관적으로 이해됩니다. 결국 그 위에서 표준을 만들어가는 기업들이 생태계를 확장시킬 것이라 봅니다.좋은 세션 함께할 수 있어 의미 있었습니다. @0xMantleKR @Gem3a
지난 토요일 @Mantle_Official 이 주최한 AI Seoul Hacker House에 APAC Lead인 @Phavorable 가 패널로 참여했습니다. 'Agentic Commerce' 세션에서 Agentic Payment와 Traditional Payment를 주제로 논의했는데, 함께한 리서처·엔지니어분들의 인사이트가 깊이 있었습니다. 제가 강조한 부분은, AI agent가 고도화될수록 결제 모델이 Subscription에서 Pay-for-Use로 전환되고, 그 흐름 위에서 Agentic Payment가 필연적으로 요구된다는 점입니다. 이후 그 위에 표준을 정립하는 기업들이 등장하면서 생태계가 본격적으로 확장될 것으로 봅니다. 세션을 매끄럽게 진행해주신 @Hope_web3_ 님과 행사를 준비해주신 @Gem3a 님께 감사드립니다. gmantle🌿
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어젯밤 AEF Seoul 2026, 잘 마쳤습니다. 'Agent Execution' 키노트로 문을 열고, Hashed Lounge에서 11개 팀이 4주간의 AI 에이전트 결제·실행 프로토콜 리서치를 발표했습니다. 2개의 인사이트 패널은 에이전트 신원·신뢰부터 자율 온체인 마켓까지 대화를 한층 끌어올렸고요. 와주신 한국 커뮤니티, 공동주최 @hyblock_kr, 스폰서·파트너 모두 감사합니다. 또 만나요
AEF SEOUL 2026 has concluded. 🎉 Quack AI APAC Lead David Lee @Phavorable kicked off the night with a keynote on "Agent Execution" — laying out a sharp vision for how AI agents will execute, settle, and operate on-chain. 11 teams took the stage at Hashed Lounge across three Research Showcase sessions, unveiling four weeks of deep R&D on AI agent payment and execution protocols. Top Team Awards were presented, with winning research to be shared publicly. 2 Insight Panels pushed the conversation further — from agent identity and trust to the rise of autonomous on-chain markets. An unforgettable evening of connection, inspiration, and exploration. Thank you to co-host @hyblock_kr, all sponsors, partners, and everyone who showed up — the Agent Economy is being defined, together. 🙌
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Agent Execution Frontier: Seoul 2026 has officially wrapped. A few weeks ago this was just a line in a deck. On May 27th, it became a room full of people at HASHED Lounge actually arguing about what happens when AI agents start moving money on their own. What made me proudest is that this wasn't a hackathon. It was a research night. University teams and junior builders showed up with real questions about agent execution, stablecoin payments, and on-chain settlement, and they didn't just point at problems. They proposed answers. Thank you to everyone who came, presented, and stayed late to keep the conversation going. To the panelists who flew in and the sponsors who believed in a first-time program in Korea, this happened because of you. We're already thinking about what comes next. If you were in the room, you know why. HYBLOCK × Quack AI. Seoul, 2026.
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이 숫자에서 내가 주목하는 건 20,387이라는 정산 건수가 아니라, 그게 사람 손을 거치지 않았다는 점이다. 에이전틱 커머스를 1년 넘게 떠들었지만, "에이전트가 실제로 돈을 움직인다"는 걸 데이터로 보여주는 단계는 또 다른 얘기다. Q402가 지금 그 지점에 있다.
7,055 MCP installs. 20,387 settled transactions. And the momentum is still building. 👉🏻 dune.com/coincraze/q402-sett… Q402 is making gasless payments effortless for AI agents ⚡ ⏳ The Q402 Payment 30-day free trial on @BNBCHAIN is in full swing. 2,000 sponsored transactions. No card. No gas. No code. 🛠 Install MCP: Claude/ Codex mcp add q402 -- npx -y @quackai/q402-mcp 🔗 Start free trial now: q402.quackai.ai/event
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키노트에서 다룰 데모 한 줄 스포일러: "매주 금요일, 8명한테 25 USDT씩 BNB 체인으로 보내. 트랜잭션당 200달러, 하루 500달러 넘기지 마."이 한 줄이 어떻게 자율 결제로 이어지는지 — 5/27 Hashed. luma.com/u9cpjyrl
2-day countdown to AEF Seoul 2026 This May 27, Quack AI and @hyblock_kr are gathering builders, researchers, and protocol teams at HASHED Lounge for an evening focused on settlement, verification, and agent-native infrastructure. 📅 May 27, 2026, 6:30 PM – 10:00 PM KST 📍 HASHED Lounge, Seoul 🔗 RSVP: luma.com/u9cpjyrl Special thanks to our sponsors: @MetisL2, @ZetaChain, @AIVM_Network, @Chain_GPT, @GOATNetwork, @pieverse_io
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Phavorable retweeted
🎙 QTalk May Session Highlight #1 Andrew from @ZetaChain shares his perspective on: how often will you still send money yourself five years from now, and who will do it for you when you don’t? Manual payments may not disappear. But they will become more intentional. For routine transactions, AI agents could act within rules we set in advance. They may understand our budgets, risk limits, vendors, and preferences. The future may be less “I send money.” More “my agent acts within the boundaries I define.”
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이거 만들면서 짜증났던 거 — AI 한테 결제 권한 주려면 결국 키를 채팅에 paste 해야 됨. 보안적으로 최악. 그래서 q402_doctor 만들었음. 이제 "Set up Q402" 한 마디면 AI 가 알아서 처리. 키는 너 로컬 파일에만 살고, 채팅창 근처에도 안 옴. Claude · Codex · Cursor · Cline 다 동일하게 작동. 9 체인 가스리스 결제 한 prompt 거리. #BNB Sprint 도 아직 진행 중 — 2,000건 무료 한 번에 풀로 깔리니까 한 번 써봐.
Q402 update. ⭐️q402_doctor is live. Say "Set up Q402" to your AI and it handles the whole setup for you — securely, end to end. No copy-pasting keys into chat. Works across Claude · Codex · Cursor · Cline. Then your AI has gasless USDC/USDT on 9 EVM chains, one prompt away. @BNBCHAIN Sprint is still open. →2,000 sponsored TXs · 30 days · no card, no gas, no code. → Grab your trial: q402.quackai.ai/event → Install MCP: npx @quackai/q402-mcp
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Phavorable retweeted
AI 에이전트가 BNB 체인 위에서 직접 USDC/USDT를 송금합니다. @QuackAI_AI의 Q402 MCP 서버, 앞으로 30일간 모든 트랜잭션 가스비를 전액 지원합니다. Claude·Codex·Cursor·Cline 모두 호환되고, 설치는 한 줄이면 끝납니다.
For the next 30 days, we pay the gas on every Q402 transaction. If you use Claude, Codex, Cursor, or Cline — your AI can now send USDC/USDT on @BNBCHAIN. Install — ask your AI: "Install the Q402 MCP server" Or run: npx @quackai/q402-mcp 📦 npm: npmjs.com/package/@quackai/q… What you get: • 2,000 sponsored transactions • No card, no gas, no code • Five MCP tools: quote, balance, pay, batch_pay, receipt • 30-second setup Grab your free trial key: → q402.quackai.ai/event
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The reason this matters: Scroll adopted 7702 in lockstep with Pectra (Euclid upgrade), so type-0x04 is first-class — no bundler, no extra paymaster layer. One signature → delegation runs inline → recipient gets 100%. Batching up to 20 in a single signed call is the real unlock for agent payouts.
Stablecoin payments on Scroll without the ETH-for-gas problem. Q402 just went live on @Scroll_ZKP. Native USDC USDT, EIP-7702 type-0x04. The payer signs once, Q402 covers the gas, the recipient gets 100%. Drop it into Claude or Codex in one line: npx @quackai/q402-mcp (or just ask your AI: "Install the Q402 MCP server") Live today: • Gasless USDC USDT • Up to 20 recipients per batched call • Cryptographic Trust Receipts on every settlement • Per-call USD caps recipient allowlists Another rail closed. Scroll keeps the UX, Q402 absorbs the gas.
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Phavorable retweeted
🎤 맨틀 서울 AI 해커하우스 | 파이어사이드 챗 03 AI 에이전트 결제 vs 전통 금융 결제 🗓 2026년 5월 30일, 오후 3시 📍 내러티브라운지, 성수 에이전틱 커머스가 현실이 되어가고 있습니다. AI 에이전트가 스스로 거래를 처리하는 세상에서 가치는 어떻게 이동하고, 결제 인프라는 어떻게 바뀌어야 할까요? 이번 세션에서는 AI 에이전트, 스테이블코인, 온체인 결제, 데이터와 실행 인프라가 만나는 지점을 함께 살펴봅니다. 연사 • 모더레이터: 맨틀 스쿼드, @Hope_web3_@AsiaStablecoin 컨트리뷰터, @samoyedali@tiger_research_ 제품 총괄, @0xyuns@chainlink 데브렐 엔지니어, @woogieboogie_jl@QuackAI_AI APAC 리드, @Phavorable
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