sdcoffey

Re:I tried Servo, the undercover web browser engine made with Rust on Thursday July 31, 2025 @07:51AM (#44744694)

All-time opener

Re:New tools for building agents on Tuesday March 11, 2025 @05:09PM (#43337021)

Steve here from the OpenAI team–this means a lot! We really hope you enjoy building on it

Re:New tools for building agents on Tuesday March 11, 2025 @05:01PM (#43336958)

Hey there! This is Steve here from the OpenAI team–I worked on the Responses API. We have not removed this! It should still work just like before! Here's an example:

https://github.com/openai/openai-python/blob/main/examples/r...

Re:Show HN: Kysely, a type-safe SQL query builder for TypeScript on Wednesday June 21, 2023 @11:13AM (#36419527)

We've been using this in production for several months, and I'm a huge fan. Unopinionated but incredibly helpful. Big ups to the authors!

Re:Harvesting credit card numbers and passwords from your site on Tuesday February 14, 2023 @10:53AM (#34791126)

A classic

Show HN: Yuzu – The Stock and Crypto GraphQL/Streaming API for Rapid Development

Posted by sdcoffey on Monday June 27, 2022 @10:32AM
from the show-hn dept.

https://www.yuzu.dev

Hey HN!Excited to show off Yuzu, the stock market and Crypto API we wish we always had.We built Yuzu to solve a problem we had while working on a prior project: current market data APIs are not built to enable rapid prototyping and scaling without a significant amount of upfront data engineering. In our previous app, a portfolio tracker, we had to ingest 30 years of historical data for stocks,...

( Read More... | 1 comment | 5 points | on HN )

Re:Show HN: Cognate – Stack oriented programming in English prose on Monday May 09, 2022 @10:55AM (#31314863)

This is cool - always wondered if something like this was possible/desirable. What do you see as the ideal use cases for Cognate?

Re:Ask HN: Where do you get your financial data? on Friday May 06, 2022 @02:15AM (#31281865)

We're mainly looking at publicly-traded US securities, including stocks, ETFs, and crucially, mutual funds. Many sources (looking at you, Polygon) don't publish price data for mutual funds. Haven't heard of MarketQA, will definitely check it out

Re:Ask HN: Where do you get your financial data? on Thursday May 05, 2022 @07:13PM (#31279386)

It is indeed, which is why we stopped after window-shopping Bloomberg and Nasdaq. Seems like it's hard to have cost-effective, high-quality data with and API that's amenable to bulk backfilling.

We have actually looked at Intrinio! Specifically for options data. Again the problem was that the API is not setup for bulk, historical backfills.

Re:Ask HN: Where do you get your financial data? on Thursday May 05, 2022 @06:36PM (#31279136)

Multi-month, wow. Cool to know this exists though, thanks!

Re:Ask HN: Where do you get your financial data? on Thursday May 05, 2022 @06:19PM (#31279007)

Interesting! I'm no longer a student, so I couldn't get access, but it's cool to know that this exists.

Curious if you've used any of these WRDS data sets? Also really interested to know if you've used the postgres interface to this data, and how you liked working with it as opposed to a regular API-like interface. Thanks!

Ask HN: Where do you get your financial data?

Posted by sdcoffey on Thursday May 05, 2022 @03:20PM
from the ask-hn dept.

Hey Hacker News,We're working on an investment aggregator that tracks the value of our customers' portfolios over time. We've faced a bunch of challenges in getting public stock market data (live/historical prices, splits, etc). We're currently cobbling together a dataset from a few different sources (Polygon, IEX, etc), but it's been a massive pain*I'm wondering if this is the case for other...

( Read More... | 17 comments | 25 points | on HN )

Re:Show HN: Find the 10 highest and 10 lowest correlations to any stock on Tuesday May 03, 2022 @05:29PM (#31253832)

This is pretty easy to do in SQL too!

https://factor.fyi/questions/top-10-aapl-correlating-stocks-...

Re:Show HN: Factor.fyi – use SQL to visualize financial, crypto and ec... on Tuesday April 12, 2022 @01:35PM (#31005803)

Thanks! We don't pay for any of our current datasets. Certain types of data we will eventually have to pay for (e.g., deep options data, short interest). We'll eventually onboard some of these as we see interest, but for now we're optimizing for publicly available but disparate datasets.

Show HN: Factor.fyi – use SQL to visualize financial, crypto and econ datasets

Posted by sdcoffey on Tuesday April 12, 2022 @11:14AM
from the show-hn dept.

https://factor.fyi

Hey HN,I'm Steve, co-founder of Factor.fyi, a new data platform for querying and visualizing financial datasets using SQL. During the pandemic, I took much more of an active role in managing my portfolio. I wanted to be able to make informed decisions about the investments I was making, and explore financial data in new ways. Market and Econ data are some of the most talked-about and...

( Read More... | 2 comments | 7 points | on HN )