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jyotish_mcp

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jyotish-mcp

A Vedic astrology (Jyotish) MCP server for Claude. Precise Swiss-Ephemeris calculations — birth chart, divisional charts, Vimshottari dashas, transits, Ashtakavarga — exposed as tools so the model interprets real data instead of inventing planetary positions.

LLMs are good at interpretation and bad at ephemeris arithmetic: ask any chatbot for a chart and it will confidently hallucinate degrees, nakshatras and dasha dates. This server closes that gap.

Try it (no installation)

Add it in Claude: Settings → Connectors → Add custom connector

https://jyotish-mcp-h6px.onrender.com/mcp

Then just ask, in any language:

Analyse my chart: 15 August 1975, 06:30, Delhi

Claude resolves the city, applies the historically correct timezone, computes everything and writes the reading. (Free hosting tier — the first request after idle time may take ~50 s to wake up.)

Related MCP server: auseklis

Tools

Tool

What it returns

jyotish_find_place

Coordinates + IANA timezone for a city (offline database)

jyotish_compute_chart

D1 + D9: ascendant, 9 grahas, nakshatras & padas, dignity, vargottama, retrogradation, five-fold relationship with dispositor, Jaimini karakas, yogas (Mahapurusha, Gajakesari, yogakaraka, neecha bhanga, Kemadruma)

jyotish_vimshottari_dasha

Maha / antar / pratyantar dashas, active period for any date

jyotish_current_transits

Transit positions by house from lagna and Moon, Sade Sati phase, Saturn return

jyotish_ashtakavarga

BAV per planet + SAV per sign and per house

jyotish_divisional_chart

D2, D3, D7, D9, D10, D12

Two prompts are included: jyotish_full_analysis and jyotish_short_reading. Presentation rules are embedded in the tool descriptions, so readings come out as prose with every term explained — not as a data dump.

Conventions & accuracy

Sidereal zodiac, Lahiri ayanamsa · whole-sign houses · true nodes · Swiss Ephemeris (Moshier model, no data files needed).

Verified against professional Jyotish software on independent charts: planetary positions match to arc-seconds, dasha boundaries to the day, Ashtakavarga bindu for bindu (SAV always sums to 337 — a built-in sanity check).

Historical timezones come from the IANA database, so Soviet decree/summer time and similar rules are applied automatically — the single most common source of wrong charts.

Self-hosting

Remote (Docker / Render / any PaaS):

docker build -t jyotish-mcp . && docker run -p 8000:8000 jyotish-mcp
# endpoint: http://localhost:8000/mcp

Local (stdio, Claude Desktop): pip install -r requirements.txt && python server.py — then add it to claude_desktop_config.json. See DEPLOY.md.

Limitations

Shad-bala is not implemented. Rahu/Ketu are excluded from the planetary relationship calculation (traditions differ). Divisional charts are limited to the six listed. The public endpoint has no authentication — anyone with the URL can use it; no birth data is stored or logged (see PRIVACY.md).

Charts with an ascendant in the first or last degrees of a sign are sensitive to birth-time accuracy; the server flags this so the model can warn the user.

Disclaimer

This is an interpretation within the Jyotish tradition, not a scientific forecast. Nothing here should be used as medical, legal or financial advice.

License

MIT

По-русски

MCP-сервер для ведической астрологии: считает карту рождения, дроби, периоды Вимшоттари, транзиты и аштакаваргу по швейцарским эфемеридам, а Claude делает интерпретацию. Айанамша Лахири, дома whole sign, истинные узлы.

Подключение без установки: Settings → Connectors → Add custom connector и адрес https://jyotish-mcp-h6px.onrender.com/mcp. Дальше достаточно написать в чат: «Разбери карту: 15 августа 1975, 06:30, Дели» — город, исторический часовой пояс и все расчёты подставятся сами.

Точность сверена с профессиональным джйотиш-софтом на независимых картах: позиции до угловых секунд, даты периодов день в день, аштакаварга бинду в бинду.

Разбор — интерпретация в рамках традиции, а не научный прогноз.

This server cannot be deployed

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Maintenance

ActivitySlowing
ResponsivenessNo issues

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