I built a stock market API in 42 days. All during @_buildspace s5. What is the API?.Today, it lets you pull financials for 16,000 tickers going back 30+ years. Why did I build the API?.Because the big providers have:.• poor API design.• poor documentation.• expensive sales

MCP Server: Docs:

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I promised I’d share this. How I wired OAuth into my MCP server. There are 3 players:.• MCP client (@claudeai, etc.).• MCP server (@cloudflare).• Backend (@findatasets). The tricky part: each party needs to trust the other without sharing ANY secrets. I used OAuth 2.1 and a

Building here:

It’s time to evolve our AI hedge fund. Instead of 1 team of agents, we'll have multiple “pods” - each with analysts and PM. The pods report to a Chief Investment Officer agent, like a real hedge fund. We’ll use @LangChainAI to run the multi-agent pods in the background. The

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I rewired how our AI hedge fund sizes risk. It used to cap every stock at 20% of the portfolio. no matter what. Now dynamically sizes:.• Low-volatility stocks → up to 25% allocation.• High-volatility stocks → max 10% allocation. Lke a real hedge fund, position size now

Example result: API:

SEC filings now hit @findatasets ~15s faster. We used to poll the SEC every 30s, but the bottleneck was wasted time in each cycle. Fixed it by:.• Reusing HTTP connections.• Parallelizing network I/O to EDGAR.• Eliminating redundant DB writes in hot path. Result: Same

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Big week for our AI hedge fund. We added:.• New GPT-5 models.• New GPT-OSS models via @ollama.• New agent graph via @LangChainAI. I love having both hosted and open-source LLMs in the mix. Next week, we’re adding smarter and more powerful agents.

I ran some numbers this morning. Yesterday @findatasets served:.• 1.21M requests.• 183ms p95 latency.• 0 total errors. This is the kind of stability I want every customer to feel. I’ll be writing long-form posts soon on the performance tweaks behind the API.

Available here:

I’ve been testing open source LLMs lately. Just added gpt-oss to our AI hedge fund. Both sizes:.• gpt-oss-20b.• gpt-oss-120b. Pulled and running locally with @ollama in minutes.

Most people avoid building solo. The lows are low, but the highs are higher. Every mistake, every win - all mine. Like building a real-time SEC filing parser. Brutal at times, but it’s starting to work. I wouldn’t trade it for anything.

Code: Demo:

I upgraded our financial assistant’s UI today. Made the financials clean and easy to read. The fun part is the entire UX is generated on the fly. All the code’s open source if you want to peek under the hood.

OK - this might have been a mistake. GPT-5 API is extremely slow. Help @OpenAI 🙏.

Will be available here: With webhook support, as well!.

No one’s pulled this off yet. A stock market API that updates the moment earnings drop. I’ve built this for months. It’s almost ready. Yesterday I tested it on $ABNB. The Q2 2025 income statement hit our API 3 seconds after release. Data was clean. Structured. Accurate.

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