PreReason
Pre-reasoned Bitcoin and macro market context API for AI agents, served over REST and MCP
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www.prereason.comAbout PreReason
PreReason is a market context API designed to be consumed by AI agents rather than by dashboards, and the design follows from that premise more rigorously than most 'AI-ready' data products. It pulls Bitcoin on-chain metrics, macro indicators, mining and liquidity data from six-plus sources and returns them pre-reasoned: trend direction as rising, falling or flat, 7/30/90-day momentum, percentile rankings, cross-asset correlations, regime classification and confidence scores, all in one structured response. The alternative an agent developer otherwise faces is integrating five data sources, parsing raw numbers and building an interpretation layer, which is where most agent projects lose their time. The delivery detail worth noting is the LLM-native markdown format: responses are formatted for how language models read rather than as JSON, which the vendor measures at roughly 60% fewer tokens for the same content. Given that agents pay per token on every call, that is a direct cost reduction, not a formatting preference. Distribution is agent-first throughout — REST API, an MCP server installable with npx @prereason/mcp, and llms.txt — working with Claude Desktop, Claude Code, Cursor and Windsurf. Eighteen market briefings are split six free, six on Basic and six on Pro, with the free tier allowing 60 requests an hour and 500 a day against 30 days of rolling data, no card required.
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Key Features
PreReason Pros & Cons
✅ Pros
- +Token-efficient response format directly cuts the cost of every agent call
- +Free tier is generous enough to run a real agent against, with no card
- +MCP-first distribution means zero integration work in Claude or Cursor
⚠️ Cons
- −Coverage is Bitcoin and macro only — no equities or broad crypto
- −Free tier's 30-day rolling window rules out backtesting
- −Briefings are gated individually, so one needed metric can force a tier jump
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