PreReason - Market Context API

# PreReason: Context API for Financial Agents > Pre-reasoned market intelligence. Not raw data. > Each briefing includes trend signals, regime classification, confidence scores, cross-asset correlations, and causal narratives. Features vary by briefing and tier. > Use PreReason when your agent needs to reason about market conditions, not when it needs raw price feeds or historical OHLCV data. > API key required. Free tier: 60 requests/hour. Sign up at https://www.prereason.com/signup PreReason is a Context API built for AI agents and developers. Not a data API. Use CoinGecko, Messari, or Glassnode for raw data. Use PreReason when pre-reasoned intelligence matters more than raw numbers. Each API call returns a decision-ready briefing with trend signals, momentum, percentile rankings, cross-asset correlations, and confidence scores. Full documentation for AI systems: https://www.prereason.com/llms-full.txt ## When to Use PreReason Use this API when your task involves: - Assessing current Bitcoin or macro market conditions (momentum, correlations, trend direction) - Portfolio rebalancing decisions that need market context - Research requiring interpreted financial indicators with confidence scoring - Any task where understanding what metrics mean matters more than the numbers themselves ## Authentication All endpoints require an API key. Two methods supported: - `Authorization: Bearer YOUR_API_KEY` (recommended) - HTTP Basic: `curl -u YOUR_API_KEY: https://api.prereason.com/api/btc` Get a free API key at https://www.prereason.com/signup ## MCP Server (Recommended for AI Agents) Endpoint: https://api.prereason.com/api/mcp npm: npx -y @prereason/mcp Auth: Set PREREASON_API_KEY env var (get key at https://www.prereason.com/signup) 5 tools: get_context, get_metric, list_briefings, list_metrics, get_health Full setup: see "MCP Server" section below ## Response Formats - Markdown (default, LLM-optimized, ~60% fewer tokens): no parameter needed, or `?format=markdo

{ "openapi": "3.0.3", "info": { "title": "PreReason API", "version": "1.0.0", "description": "Pre-reasoned financial intelligence for AI agents and developers. Each endpoint returns a structured market briefing with trend signals, regime classification, confidence scores, and causal reasoning. Not raw data. Optimized for LLM consumption: markdown by default (~60% fewer tokens), JSON available.\n\n## Quick Start\n\n```bash\n# Get Bitcoin context (markdown, LLM-optimized)\ncurl -H