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. Get a key at https://www.prereason.com/signup, or from inside an agent session: call the MCP tool request_access, or POST https://api.prereason.com/api/agent/claims, and have a human approve one link (see Authentication below). 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` Three ways to get a free key: 1. A person signs up at https://www.prereason.com/signup and creates a key under Settings. 2. From inside an MCP session: call the tool `request_access`, show the human the `approve_url`, then call `check_access` with the `claim_code` and `claim_token` until the status is

{"openapi":"3.0.3","info":{"title":"PreReason API","version":"1.0.0","description":"PreReason returns market briefings with the interpretation already done:\ntrend signals, regime classification, confidence scores and a causal\nnarrative, in place of raw numbers. Markdown by default, which costs about\n60 percent fewer tokens than JSON. Add ?format=json for structured output.\n\nCoverage is Bitcoin price and momentum, network and miner health, spot\nBitcoin ETF flows, corporate Bitcoin treasurie