# Thinkrr > Buy stocks by chatting. Thinkrr (https://thinkrr.org) is a chat app for Robinhood Chain (chain 4663): connect a wallet and talk to Claude Sonnet 5.5 by Anthropic. The assistant reads the chain, quotes trades on Uniswap v3 and proposes each transaction as a card; the user confirms every one in their own wallet. Nothing custodial, nothing stored server side. ## What it does - Buy and sell the Robinhood stock tokens on Uniswap v3 pools (vs USDG or WETH): single trades, and baskets of up to 8 stocks in one transaction. - Quote before every proposal: pool price, Chainlink feed price, the gap, price impact, and a slippage cap (1% by default). - Portfolio: every holding with live value, allocation, cost basis from Thinkrr trades, and activity. - Research: live prices and web search for news. - Commands without the AI: /portfolio, /price NVDA, /buy NVDA 25, /sell TSLA 50%, /basket 100 NVDA TSLA AAPL, /send, /help. Thinkrr takes no fee. Nothing here is financial advice. ## Pages - https://thinkrr.org/chat: the chat - https://thinkrr.org/markets: every stock token, priced live - https://thinkrr.org/portfolio: a wallet's holdings - https://thinkrr.org/docs: how it works - https://thinkrr.org/contracts.json: contract addresses ## Contracts (Robinhood Chain, chain 4663) - Uniswap SwapRouter02: 0xCaf681a66D020601342297493863E78C959E5cb2 - Uniswap QuoterV2: 0x33e885eD0Ec9bF04EcfB19341582aADCb4c8A9E7 - USDG: 0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168 - WETH: 0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73 ## Company 2026 Thinkrr Lab LLC. LinkedIn: https://www.linkedin.com/company/thinkrr