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Welcome to the Adjacent News API

Adjacent News provides a robust API for accessing data from prediction markets across multiple platforms, along with related news and market analytics. Our API allows developers to build powerful applications that leverage market data, perform advanced search, and access insightful analytics.

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Getting Started

The API is available at https://api.data.adj.news. All API requests should be sent to this base URL followed by the specific endpoint path.

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Authentication

Some API endpoints require authentication, specifically:

  • Data older than 1 day
  • Requests returning more than 100 results
  • All analytics endpoints

You can authenticate using one of these methods:

  • HTTP header: Authorization: Bearer YOUR_API_KEY
  • HTTP header: Authorization: ApiKey YOUR_API_KEY
  • Query parameter: ?api_key=YOUR_API_KEY

To obtain an API key, please contact support at lucas@adj.news.

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Quick Examples

# Get all active markets with pagination
curl https://api.data.adj.news/api/markets?limit=10&offset=0

# Get a specific market by ID
curl https://api.data.adj.news/api/markets/kalshi_KXSECPRESSMENTION-25JUN30-HOAX

# Search for markets with a keyword
curl https://api.data.adj.news/api/search/query?q=presidential%20election

# Get market trends over time
curl https://api.data.adj.news/api/analytics/trends?interval=week&metric=volume

# Get news related to a market
curl https://api.data.adj.news/api/news/presidential%20election

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API Categories

The API is organized into four main categories:

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Markets API

Access prediction market data with advanced filtering, sorting, and pagination options.

  • List Markets: Get markets with filtering by platform, type, status, and more
  • Get Market: Retrieve detailed information about a specific market
  • Related Markets: Find markets related to a specific market
  • Market Statistics: Get overall statistics about markets

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Search API

Advanced search capabilities powered by both text-based and semantic vector search.

  • Query Search: Search for markets using natural language
  • Related Questions: Find questions related to a given text input

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Analytics API

Data analytics and insights for prediction markets.

  • Trends: Analyze market trends over time
  • Market Performance: Compare multiple markets performance
  • Market Share: Analyze platform market share

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News API

Access news articles related to markets.

  • News for Market: Get news articles related to a specific market query

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Rate Limits

  • Unauthenticated requests: 300 requests per minute
  • Authenticated requests: 1000 requests per minute

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Additional Resources

You can view a trading interface at trade.adj.news

For feedback or support, please contact lucas@adj.news.