
Alpha Vantage
Financial Modeling Prep
Twelve Data
Alpaca Trading API
Finage
Fey
CoinGecko
Polygon.io offers streaming realtime data for stocks/equities, ETFs, Indecies and Forex/Currencies including crypto currencies. Our Real-Time Stock Data APIs help you build the future on fintech.
Colabity
CofounderFit
CoFinds
CoFoundersLab
coHounder
Edunin
The World's first MVP marketplace
Easiest way to buy & sell side projects and meet founders

Which is more popular?
Based on our record, Polygon.io seems to be a lot more popular than SecondFounder. While we know about 85 links to Polygon.io, we've tracked only 1 mention of SecondFounder.
Website, pricing, platforms and company facts side by side.
|
|
SF
SecondFounder
|
|
|---|---|---|
| Website | polygon.io | secondfounder.com |
| Listed in |
What each product offers, as listed by its team.

Possible disadvantages
Possible disadvantages
Walkthroughs and reviews on video.
Get Stock Pricing Data From The Polygon.io API For Algo-Trading Using Python
No SecondFounder videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Polygon.io and SecondFounder. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Polygon.io gives you 5 API calls/minute on the free tier. That’s rough for options scanning since you need one call per expiration per symbol. I’d only recommend this if you’re scanning fewer than 20 symbols. - Source: dev.to / 6 months ago
The market data will be streamed from polygon.io. All trades should be handled by the Game Engine, so in the simplest form, the architecture looks like this:. - Source: dev.to / about 1 year ago
Here are some valuable resources for developers exploring share price API solutions: Alpha Vantage API: A free platform offering extensive stock market data, including historical trends and real-time updates. Yahoo Finance API: A... - Source: dev.to / over 1 year ago
Hi HN, I am selling my product https://secondfounder.com. It is a platform where you can buy/sell your side projects. Existing products/platforms are easy to use and try to provide most of the information needed to acquire a project, but... - Source: Hacker News / over 3 years ago
When comparing Polygon.io and SecondFounder, you can also consider the following products.

Alpha Vantage offers free APIs in JSON and CSV formats for realtime and historical stock and forex data, digital/crypto currency data and over 50 technical indicators.
Compare Alpha Vantage to Polygon.io or SecondFounder:


Access all stocks discounted cash flow statements, market price, stock markets news, and learn more about Financial Modeling. Learn M&A, LBO, DCF, Comps, and Financial Statement Modeling thought concrete examples
Compare Financial Modeling Prep to Polygon.io or SecondFounder:

Get aligned before you split equity, roles, and responsibility. Start with a free founder profile, then turn cofounder compatibility signals into documented decisions.
Compare CofounderFit to Polygon.io or SecondFounder:

The simplest and most effective way to access both realtime and historical stock, forex, cryptocurrency data, and over 100 technical indicators.
Compare Twelve Data to Polygon.io or SecondFounder:

Find cofounders, founding team or other professionals by pitching your startup in 200 characters or less.
Compare CoFinds to Polygon.io or SecondFounder: