⚡ Payments integration in one line

Wiring an agent into payments used to be a week of work: an SDK, API keys, config.

With Q402 it's one line in your MCP config.

npx -y @quackai/q402-mcp

📱Twitter | 📱Channel | 💬Chat | 🌎Website | 🌐APP | 📕Medium | ⚙️Gitbook

🇰🇷 Quack AI lands in Seoul

Quack AI is landing in Seoul.

Your AI agent is about to make its first onchain payment.

Bring Codex, connect Q402, and your AI agent sends a real payment on Avalanche.

📱Twitter | 📱Channel | 💬Chat | 🌎Website | 🌐APP | 📕Medium | ⚙️Gitbook

🚀 One-click Q402 install in Cursor

Q402 now installs into Cursor @cursor_ai in one click, via http://cursor.directory.

One signed request from your agent triggers a gasless stablecoin payment (USDC, USDT, RLUSD, USDG), settled on-chain across 12 EVM chains. No approve, transfer, pay steps. No separate gas.

npx -y @quackai/q402-mcp

📱Twitter | 📱Channel | 💬Chat | 🌎Website | 🌐APP | 📕Medium | ⚙️Gitbook

👛 Give Your Agent a Wallet

Give 👏 Your 👏 Agent 👏 A 👏 Wallet 👏

It pays. It stays under the limits you set. It never touches gas.

Agent Q runs on Q402. Gasless stablecoin rails, live on 12 chains.

📱Twitter | 📱Channel | 💬Chat | 🌎Website | 🌐APP | 📕Medium | ⚙️Gitbook

🔐 Q402 Signing Key Options

Where your agent's signing key lives is a design choice.

Q402 gives three modes:
🔸 your EOA signs locally
🔸 an exported Agent Wallet key signs in-process
🔸 a server-custodied wallet signs on Q402's side

📱Twitter | 📱Channel | 💬Chat | 🌎Website | 🌐APP | 📕Medium | ⚙️Gitbook

📍 Q402 MCP Seoul Meetup — August 3

Q402 MCP Seoul Meetup starts this Sunday, August 3.

AI agents are no longer just answering questions. They are starting to hold wallets, request payments, settle invoices, and move stablecoins on-chain.

At the meetup, we’ll show how Q402 MCP works inside Claude, Codex, Cursor, and other AI clients:

📱Twitter | 📱Channel | 💬Chat | 🌎Website | 🌐APP | 📕Medium | ⚙️Gitbook

📍 Q402 MCP Seoul Meetup

Q402 MCP Seoul Meetup starts this Monday, August 3

AI agents are no longer just answering questions. They are starting to hold wallets, request payments, settle invoices, and move stablecoins on-chain.

At the meetup, we’ll show how Q402 MCP works inside Claude, Codex, Cursor, and other AI clients:

📱Twitter | 📱Channel | 💬Chat | 🌎Website | 🌐APP | 📕Medium | ⚙️Gitbook

🧠 FAT Brings an Economic Body to AI Agents

FAT gives AI agents an economic body. Governance gives them a nervous system.

@MossAI_Official's Fungible Agent Token standard is the missing interface for tokenizing autonomous agent economies — and maps cleanly to how AI-governed DAOs already operate.

Excited for what ships next.

📱Twitter | 📱Channel | 💬Chat | 🌎Website | 🌐APP | 📕Medium | ⚙️Gitbook

📊 Month-End Treasury Overview with Q402

You let an agent spend. Now it is month end.

Q402 keeps the books: a treasury overview by chain and vendor, total paid to any single vendor with its recurring cadence, and a per agent spend report against each wallet's caps. All read only.

npx -y @quackai/q402-mcp

📱Twitter | 📱Channel | 💬Chat | 🌎Website | 🌐APP | 📕Medium | ⚙️Gitbook

🛠️ Q402 Builder Workshop with Mantle (Aug 27, Seoul)

August 27
Q402 Builder Workshop with @Mantle_Official

AI agents are no longer just answering questions. They hold wallets, request payments, settle invoices, and move stablecoins on-chain. The part that was still missing is the rail underneath.

📱Twitter | 📱Channel | 💬Chat | 🌎Website | 🌐APP | 📕Medium | ⚙️Gitbook

🛡️ Payment Guardrails on Base

Payment guardrails for agents on @base

Q402 Connect

Soon 🟦

📱Twitter | 📱Channel | 💬Chat | 🌎Website | 🌐APP | 📕Medium | ⚙️Gitbook

🦆 Quack AI Listed on Mantle Ecosystem

Quack AI is now on the Mantle ecosystem page, under AI & Data.

Right shelf. Most of that list helps an agent decide. We handle the part after the decision, which is the part that still quietly needs a human to fund gas.

On Mantle it doesn't. USDC and USDT0 settle from one signature, the sender never holds MNT, and every authorization stays auditable afterward.

📱Twitter | 📱Channel | 💬Chat | 🌎Website | 🌐APP | 📕Medium | ⚙️Gitbook

🗝️ Free trial keys now cover Mantle

Starting tomorrow: free trial keys cover Mantle

Aug 21 to 28, every Q402 trial key settles USDC and USDT on Mantle mainnet, gasless, from your 500 sponsored transactions

Wire it into Claude, Cursor, or Cline this week, then bring your agent to Seoul on Aug 26

📱Twitter | 📱Channel | 💬Chat | 🌎Website | 🌐APP | 📕Medium | ⚙️Gitbook

🟦 Q402 Connect Now Live on Base

🟦Q402 Connect is now live on Base @base

🔸→ your agent pays any x402 endpoint: reads the quote, asks you first, spend caps and audit built in

🔸→ send USDC to anyone, gasless: sender pays $0, recipient gets the full amount

📱Twitter | 📱Channel | 💬Chat | 🌎Website | 🌐APP | 📕Medium | ⚙️Gitbook

🎬 Your agent’s first x402 payment on Base

Your agent's first x402 payment on @base

One line of config, then it can pay any x402 API

It reads the quote, shows you the terms, and waits for your approval before it spends

📱Twitter | 📱Channel | 💬Chat | 🌎Website | 🌐APP | 📕Medium | ⚙️Gitbook

📍 Seoul Event: AI Agents & Payments

Tonight in Seoul with @Mantle_Official : AI Agents, Payments

Bring a laptop. Connect Q402 to Claude, Codex, or Cursor, then run three quests

🔸 → send USDC to the person next to you, and check who paid the gas. It wasn't you
🔸 → split a bill to three people in one sentence
🔸 → tell your agent to buy the merch, and walk out with it

📱Twitter | 📱Channel | 💬Chat | 🌎Website | 🌐APP | 📕Medium | ⚙️Gitbook

🧾 Know When Not to Retry a Payment

An x402 seller can accept your payment and still fail to deliver

Most payment clients report that as a plain failure. Your agent reads failure, retries, and pays twice

q402-mcp tells you exactly what happened:

📱Twitter | 📱Channel | 💬Chat | 🌎Website | 🌐APP | 📕Medium | ⚙️Gitbook