Data Sources

precandle64 sources market data, prediction market data, and news from the third-party providers below. We display headlines, prices, and snippets under fair use and good-faith attribution — see each provider's own terms for how they permit use of their data.

Yahoo Finance

Stock and some cryptocurrency prices, via the yahoo-finance2 npm package.

CoinGecko Terms →

Cryptocurrency market data — prices, market cap, and 24h volume.

Polymarket Terms →

Prediction market data via the Polymarket Gamma API.

Kalshi Terms →

Prediction market data via Kalshi's public API. Kalshi is CFTC-regulated in the US.

Reuters

News headlines via RSS, used for signal generation and article matching.

Bloomberg

News headlines via RSS, used for signal generation and article matching.

The Wall Street Journal

News headlines via RSS, used for signal generation and article matching.

Anthropic (Claude API)Terms →

AI summarization of multiple news articles into a single asset summary.

U.S. Securities and Exchange Commission

company_tickers.json — the full US stock universe (ticker, name, CIK).