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PreReason - Market Context APIFinancial context your AI actually understands. PreReason delivers pre-reasoned financial intelligence for AI agents and developers. Bitcoin on-chain metrics, macro indicators, cross-asset correlations, trend direction, and confidence scores in one structured API response.Key Features

One Call, Full Picture — Bitcoin, macro, mining, liquidity from 6+ sources with trends, confidence scores, and percentile ranks.

Markdown or JSON: the same briefing in either format from one call, every figure dated and its sources named.

Agent-Ready — REST API, MCP server, llms.txt. Works with Claude Desktop, Claude Code, Cursor, Windsurf. Install: npx @prereason/mcp

19 Market BriefingsFree (6): btc.quick-check, btc.context, btc.pulse, btc.grid-stress, macro.snapshot, cross.correlationsBasic (6, $50/mo): btc.momentum, macro.liquidity, btc.on-chain, cross.breadth, btc.miner-survival, btc.etf-flowsPro (7, $150/mo): btc.full, btc.factors, cross.regime, fx.liquidity, btc.energy, btc.treasury, macro.ratesPricing

Free: 30 req/hr, 100/day, 6 briefings, 30-day rolling data, the 17 Bitcoin metrics in full and the latest reading of every other metric. No credit card. (Changed 1 October 2026, from 60 an hour and 500 a day; free accounts active in the week before keep those until further notice.)

Basic $50/mo — up to 7,000 calls a day, at most 500 in any hour, 12 briefings, data from Jan 2025.

Pro $150/mo — up to 35,000 calls a day, at most 2,000 in any hour, all 19 briefings, full historical data.

Enterprise — Custom limits and SLA.

Founding prices: $19.99 a month on Basic for the first 250 subscribers and $49.99 a month on Pro for the first 100, kept while you stay subscribed.Quick StartAPI: curl -H "X-API-Key: YOUR_KEY" https://api.prereason.com/api/btcMCP: npx -y @prereason/mcpRemote MCP: https://api.prereason.com/api/mcp API Docs | All Briefings | All Metrics | Source Attribution | Sign Up Free | Status | Terms | Privacy © 2026 PreReason. Context API for smarter decisions. Not investment advice.