StewardPay

ビデオ

テックスタック

Solidity

Docker

Privy

Foundary

Viem

Typescript

Node

説明

Try it:
· https://stewardopenserve.up.railway.app

StewardPay lets anyone own tokenized US stocks on Robinhood Chain by texting on WhatsApp. No crypto wallet app, no seed phrase, no gas to buy first.

The problem

Robinhood Chain puts real stock tokens on-chain, but buying one still means installing a wallet, writing down a seed phrase, bridging ETH for gas, finding a DEX, approving and swapping. Millions of people, especially in emerging markets like Nigeria, want US stocks but will never do that. They already use WhatsApp every day.

How it works

1. You text: "Buy Apple with 1 USDG".
2. An AI agent (SERV Reasoning, with its prompt-injection guard on) picks the right action.
3. Steward quotes the best route via KyberSwap, with LI.FI as fallback, and checks the calldata, contracts, minimum output and fees in code.
4. You get an exact review: pay, receive, minimum, maximum network fee, 4-minute expiry.
5. You tap Confirm. The trade executes from your own Privy wallet on Robinhood Chain, and you get a receipt with an explorer link.

Features
- Buy and sell 9 stock tokens and ETFs with USDG, 24/7: AAPL, NVDA, TSLA, MSFT, GOOGL, AMZN, META, SPY and QQQ
- Plain language, even with typos: "sell 0.001 appl"
- Send USDG to contacts, addresses or phone numbers
- One wallet per user, no seed phrase. A Privy policy limits it to approved contracts.
- New users get a one-time ETH welcome gift, so they never have to buy gas before their first trade
- The AI never holds keys. Only the user's tap moves money.

Live on mainnet Real trades executed through Steward on Robinhood Chain: - https://robinhoodchain.blockscout.com/tx/0x9a875b3943b63bd02ab79808ed1bb27b9e75720a7836b0f46bce4c81e374e091 - https://robinhoodchain.blockscout.com/tx/0x6f92e708761a6a7da54315908a31d9dcf814fde569c58b4f5b1867bb9640af0c - https://robinhoodchain.blockscout.com/tx/0x5091fac8af4ae6a7165664b95f32b7127557fee6b57ef5144e26210f285ad8d9

Github
· https://github.com/Yilkash/steward

ハッカソンの進行状況

Built from scratch during the Buildathon (Sept 19 onward): - WhatsApp bot with consent-based onboarding and a Privy wallet per user - AI intent routing with SERV Reasoning and prompt-injection guard - Mainnet stock-token trading via KyberSwap, with LI.FI fallback - Exact trade reviews, single-use confirmation, fee ceilings and receipt verification - Mainnet USDG payments to contacts, addresses and phone numbers - Reliability fixes: gas-limit handling, recovery of unsent transactions, and bidding above the base fee so trades no longer fail when fees rise - 116 automated tests, CI, Docker deployment on Railway - Live mainnet trades confirmed, 4 users onboarded Since the first submission: - Expanded from 3 to 9 stock tokens and ETFs: AAPL, NVDA, TSLA, MSFT, GOOGL, AMZN, META, SPY, QQQ - Launched a landing page with real WhatsApp screens and on-chain trades: stewardopenserve.up.railway.app - Added a one-time ETH welcome gift for new users, so nobody has to buy gas before their first trade - Rewrote the README and made a demo video

資金調達の状況

Not raised yet. Steward is self-funded and built during the Buildathon. We're open to grants and pre-seed conversations, and plan to use the Founder House program to validate traction with more users before raising.