Finny

What it does

Build, backtest, and iterate on trading algorithms using natural language. A CLI tool powered by AI for generating Python trading strategies.

Finny is the AI-native financial harness for professional investment teams, connecting research, code, backtests, and execution inside infrastructure they control.

Your edge is not one answer. It is the chain of theses, code, backtests, reviews, and execution decisions that came before it. The thesis remained intact, but the latest backtest crossed the desk's drawdown gate after the volatility update. Version 17 reduced exposure, and the approved order executed at 14:07. Finny connects the models you trust to the research, data, backtester, and execution systems you already own. The result is one private layer that gets more useful with every workflow. Researchers work in the terminal. Reviewers work in the browser. Finny carries the same context between them so every decision adds to the next one. Start from the shell without starting from scratch.…from finnyai.tech

• 
  Composer2023 · composer.trade · ▲225

  Build, backtest and execute trading algorithms with AI

• 
  LangAlpha – what if Claude Code was built for Wall Street?Apr 2026 · github.com · ▲148

  Some technical context on what we ran into building this. MCP tools don't really work for financial data at scale. One tool call for five years of daily prices dumps tens of thousands of tokens into the context window. And data vendors pack dozens of tools into a single MCP server, schemas alone can eat 50k+ tokens before the agent does anything useful. So we auto-generate typed Python modules from the MCP schemas at workspace init and upload them into the sandbox. The agent just imports them like a normal library. Only a one-line summary per server stays in the prompt. We have around 80…

• 
  HeyTradersJan 2026 · hey-traders.com · ▲128

  HeyTraders parses natural language queries into trading logic for instant crypto backtesting and market research

• 
  Open-source CLI coding framework using Claude2024 · github.com · ▲84

  AI powered cli coding agent that monitors your dev/test server and fixes errors and adds features - vysakh0/dravid

• 
  Chat With Traders x Quantopian: Machine learning in finance2016 · soundcloud.com · ▲60

  5/6 · The workflow of a professional quant trading firm.

• AE
  An English-language trading strategy editor that compiles to Python2015 · tradewave.net · ▲9

• 
  Run full iOS 16.5 firmware on Android Devices▲516

  Contribute to oosexgang/hackios-xnu-kernel development by creating an account on GitHub.

  Dev tools · 2d ago · github.com

• 
  /dev/null▲492

  a social network for devs

  Dev tools · 5d ago · dev-null.sh

• 
  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 29d ago · github.com

• 
  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 27d ago · github.com

• 
  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 25d ago · openbot.run

• 
  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 22d ago · talanoa.email

• 
  Brila▲1,364

  One-page websites from real Google Maps reviews

  AI · Apr 2026 · brila.ai

• AG
  A game where you build a GPU▲964

  Thought the resources for GPU arch were lacking, so here we are

  Life & fun · Apr 2026 · jaso1024.com

• 
  I built a tiny LLM to demystify how language models work▲915

  Built a ~9M param LLM from scratch to understand how they actually work. Vanilla transformer, 60K synthetic conversations, ~130 lines of PyTorch. Trains in 5 min on a free Colab T4. The fish thinks the meaning of life is food. Fork it and swap the personality for your own character.

  AI · Apr 2026 · github.com

• 
  Fathom 3.0▲800

  AI meeting notes: now bot-free, in ChatGPT & Claude + more

  AI · Apr 2026 · fathom.ai

• 
  Brutalist Concrete Laptop Stand (2024)▲786

  I made a laptop stand out of solid concrete, in the style of brutalist architecture, with themes of urbex and urban decay

  Life & fun · Apr 2026 · sam-burns.com

• 
  I built a frontpage for personal blogs▲783

  With social media and now AI, its important to keep the indie web alive. There are many people who write frequently. Blogosphere tries to highlight them by fetching the recent posts from personal blogs across many categories. There are two versions: Minimal (HN-inspired, fast, static): https://text.blogosphere.app/ Non-minimal: https://blogosphere.app/ If you don't find your blog (or your favorite ones), please add them. I will review and approve it.

  AI · Apr 2026 · text.blogosphere.app