Adjacent News
Adjacent News is a prediction-market data, news, and API platform that aggregates 40,000+ markets across Kalshi, Polymarket, and more into one normalized feed.
Overview
Adjacent News is a media and data platform for prediction markets, founded by Lucas Kohorst. It aggregates more than 40,000 markets across Kalshi, Polymarket, Manifold, and Metaculus into a single normalized API and turns shifts in market odds into forward-looking news and analysis.
For Kalshi traders and developers, Adjacent provides a unified Markets API, historical price and trade data, semantic search across related markets, custom indices, and cross-platform reference rates, all reachable through one API key. A TradingView-style charting interface lets users overlay the same market across multiple venues to spot pricing differences, and raw data snapshots are available for download.
Beyond raw data, Adjacent runs an in-context news layer, including a browser extension that surfaces related markets on X and news sites, plus RSS and newsletter distribution. The API is documented at docs.adj.news, with market and event endpoints available without authentication and export endpoints behind bearer tokens, making it straightforward to build Kalshi research and monitoring tools.
The Problem
Prediction-market data is fragmented across many venues, each with its own API, schema, and history, which makes it hard to research Kalshi markets, compare odds across platforms, or connect market moves to the news driving them.
The Solution
Key Features
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Resources
Adjacent News documents its Markets, Search, News, and Trade APIs at docs.adj.news, with a base URL of v2.api.adj.news and market and event endpoints available without authentication. Data downloads, indices, and reference rates are available to API users, and the platform, charting interface, and news products are accessible at adj.news with updates on X at @AdjacentNews.
