Advanced techniques

Lagna Transit Windows

get_lagna_transit_windows

T15, the scale of minutes: the minutes on one day (target_date, required) when the rising sub lord is one of the event's fruitful significators. Returns '{ event, technique, fruitfulPlanets, targetDate, latitude, geoLongitude, windows[], summary, eventResolution }'. The same block 'get_transit_timing_panel' returns as 'lagnaTransit', which there is null without a target_date.

Parameters

Name	Type	Required	Description
birth_datetime	string	Yes	Birth date and time in ISO 8601 format (e.g., "1990-05-15T14:30:00").
latitude	number	Yes	Birth location latitude. Range: -90 to 90.
longitude	number	Yes	Birth location longitude. Range: -180 to 180.
utc_offset_minutes	number	Yes	UTC offset in minutes (e.g., 330 for IST, -300 for EST).
ayanamsa	enum: kp \| kp_new \| lahiri \| raman \| true_chitra \| khullar	No	Ayanamsa system. Defaults to kp.
event	event name	No	Event to time. If omitted, the engine derives the most active event from the running MD+AD lord's signification with Ruling Planets tie-break, and returns it in the eventResolution field. Ignored if house_group is provided.
house_group	array<house number (1-12)>	No	Override event lookup with explicit house numbers (1-12). When provided, event is ignored.
target_date	string	Yes	The day to find the Lagna windows on (ISO 8601). Required.

Example call

Send the request as a standard MCP tools/call:

http

POST https://mcp.lumin.guru/mcp
Authorization: Bearer mcp_yourkey...
Accept: application/json, text/event-stream
Content-Type: application/json

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_lagna_transit_windows",
    "arguments": {
      "birth_datetime": "1992-08-14T04:32:00",
      "latitude": 6.927,
      "longitude": 79.861,
      "utc_offset_minutes": 330,
      "ayanamsa": "kp",
      "target_date": "..."
    }
  }
}

Birth data

This tool requires birth data on every call. The MCP server is stateless, so calling set_birth_profile first validates the data and returns the reading plan, but it does not store anything. Repeat the same five fields here.