Aleph is a powerful tool for people who follow the money. It helps investigators to securely access and search large amounts of data - no matter whether they are a government database or a leaked email archive.
Requires a (free?) account?
Consider adding to Searx?
CNN's fear and greed index in REST API form, courtest of RapidAPI. It's a free API.
Seemingly inspired by CNN's index of the same name, this site crunches and calculates cryptocurrency-related sentiment and comes up with a numerical index of what appears to be influencing the markets at that time, vis a vis, fear or greed. Has a free to use REST API.
News and investment data for just about every market you can think of around the world, from stocks to commodities to cryptocurrency.
UnusualWhales.com is the go to place for retail tooling in options, equities, and crypto markets. It helps retail traders, expose market wide corruption, does deep market research and also has cool memes. We have never received funding, have no outside network or support, and are trying to build the most affordable retail tooling available, while also fight for market transparency. The market needs a lot of work, to put it lightly. I have been quoted in every major news publication, my congress reports have been put into Congressional Hearings, interviews, and part of Josh Hawley's Congress Trading Ban.
Of interest: https://unusualwhales.com/politics/article/congress-trading-report-2022
News about companies preparing to IPO.
Provides a way for you to view the latest NASDAQ.com content directly from your favorite RSS reader. You can also use the RSS feed to automatically display headlines on your own website.
Real-Time RESTful APIs and Websocket for Stocks, Currencies, and Crypto.
- Recent and upcoming IPOs: https://finnhub.io/docs/api/ipo-calendar
Set up a free account, get access to NASDAQ data through their APIs.
Analyze a company's investment profile by looking at pertinent news, stock price patterns, and overall sentiment.
Has a REST API. Free tier offers 1 API key, 60 requests per minute, 1000 requests per day. The premium tier isn't too bad ($25us/month) if you need to heavily use their service.
The U.S. Securities and Exchange Commission's HTTPS file system allows comprehensive access to the SEC's EDGAR (Electronic Data Gathering, Analysis, and Retrieval system) filings by corporations, funds, and individuals. For full documentation, please see Accessing EDGAR Data.
Free real-time, historical and intraday stock data APIs
Access the best stock market data from over 70 exchanges plus news, crypto and forex data, all for free. Perfect for everyone from startups to enterprise corporations. Free API key.
Free tier: 100 requests/day
Basic tier: $9us/month, 2500 requests/day
Retrieve historical insider trading records for any company and any individual. Hundreds of thousands of SEC filings at your fingertips with one query. Stock data. Fundamentals. Signs of insider trading. Earnings analysis. SEC filings.
A service which tries to make it easy to do paper and algorithmic trading. Paper trading is read-only access to live market data, which is exactly what I need.
Rate limit: 200 requests/API key/minute
https://docs.alpaca.markets/api-documentation/api-v2/
API keys are transmitted in headers.
NASDAQ's canonical list of energy companies traded on that exchange. Includes share price trends, market valutation, and trade volumes.
Stocktwits' list of stock symbols for companies that haven't gone public yet.
A website that has free stock tickers and business information about several thousand publically traded companies.