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Dasha API

What is a Dasha API?

A Dasha API returns the planetary period timeline of a chart - which graha rules which stretch of a life, with start and end dates. Vedic Proof computes Vimshottari dasha from the Moon's position within its nakshatra at birth, and states the year length used, because that single choice moves every date.

Request

Tools are called over MCP, so an assistant connected to https://vedicproof.com/mcp invokes get_databank itself. The arguments it sends are:

tool · get_databank
{
  "date_of_birth": "1994-01-19",
  "time_of_birth": "05:22",
  "city": "Kochi",
  "country": "India",
  "datasets": [
    "vimshottari_dasha",
    "dasha_at_date"
  ],
  "options": {
    "dasha_at_date": {
      "date": "2026-08-24"
    }
  }
}

Response

Every response carries a plain-language summary string plus structured data, and states the engine and ayanamsa it used. Abridged here for length.

result · json
{
  "data": {
    "vimshottari_dasha": [ { "lord": "Rahu", "from": "1993-04-02", "to": "2011-04-02", "running": false } ],
    "dasha_at_date": { "date": "2026-08-24", "mahadasha": "Jupiter", "antardasha": "Saturn", "from": "2025-11-19", "to": "2028-06-01" }
  }
}

How is this calculated and verified?

These are the pinned parameters that affect this computation. The full disclosure, and the golden-chart corpus, live on /proof.

Dasha year length365.2425 days (Gregorian mean year)
Vimshottari periods are measured in mean Gregorian years from the exact birth instant, with the first mahadasha reduced by the elapsed fraction of the janma nakshatra. Engines using a 360-day savana year or a sidereal solar year will differ by days over a lifetime - this parameter is the usual reason two dasha tables disagree.
AyanamsaLahiri (Chitrapaksha), mean
Single supported system today, computed as a polynomial in Julian centuries from J2000 rather than read from a table. True-Chitra, KP-Newcomb and Raman are not offered; that is a limitation, not a default we are hiding.
Rounding and boundariesAssigned on unrounded longitude; displayed to the arc-minute
Rasi, nakshatra and pada are assigned from the full-precision longitude before any rounding, so a graha at 29.9999° stays in its own rasi. Degrees are formatted d° mm' ss" for display only.

Common questions

Why do dasha dates differ between engines by days?
Year length. Vedic Proof uses 365.2425 days; other engines use a 360-day savana year or a sidereal solar year, and the divergence compounds across a 120-year cycle.
How many levels are returned?
Two today: mahadasha and antardasha. Pratyantardasha is not published because it is not computed, and inflating the level count is exactly what the comparison articles penalise.
Is the balance of dasha at birth included?
Yes, implicitly: the first mahadasha begins before birth by the elapsed fraction of the janma nakshatra, so its remaining span is the balance.

Connect this to Claude or ChatGPT with one URL: https://vedicproof.com/mcp. First 14 days unlimited and free, then $1.99/month.

claude setup →chatgpt setup →pricing →

Related computations

all computations in docs →