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caelus mcp

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npm caelus-mcpstreamable-httpMITupdated 8d ago

Clean-room astrology computation monorepo. MIT, no Swiss Ephemeris code, no AGPL, no ephemeris files. Caelus computes ephemeris positions, charts, events, hellenistic timing techniques, Vedic methods, citable chart facts, sky-view image-prompt frames, and the MCP tools around them. Live at ephemengine.com.

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What can you do with caelus mcp?

Caelus

Clean-room astrology computation monorepo. MIT, no Swiss Ephemeris code, no AGPL, no ephemeris files. Caelus computes ephemeris positions, charts, events, hellenistic timing techniques, Vedic methods, citable chart facts, sky-view image-prompt frames, and the MCP tools around them. Live at ephemengine.com.

Packages

Path npm Description
packages/caelus caelus TypeScript engine (~153 KB gzipped total, zero deps)
packages/caelus-mcp caelus-mcp MCP server: charts, transits, synastry, events, eclipses
packages/caelus-delineations-pd — Public-domain interpretation corpus + default validation set for interpret()
packages/birth caelus-birth Birth time + place → UT (timezone and DST resolution)
packages/wheel caelus-wheel React SVG chart wheel, zero runtime deps
apps/web — Next.js site: playground, validation, edge /api/chart
caelus-starter — Next.js starter app (separate repo)

The Python reference engine and data-fitting pipeline live in python/; they mint the coefficient data and golden fixtures and are not a runtime dependency.

Docs

Quick start

npm install
npm run build
npm test
npm run dev -w web

http://localhost:3000 — live chart in the browser. Edge API: GET /api/chart?date=…&lat=…&lon=….

Branches

  • main — stable releases
  • dev — active development