Advanced techniques

Vargottama Planets (D1 = D9)

get_vargottama_planets

Detects planets, and the lagna, that occupy the same sign in D1 (natal) and D9 (Navamsa), i.e. vargottama (BPHS ch.6 Santhanam, Brihat Jataka; read as strong, comparable to own sign). Returns each planet's natal sign, D9 sign, vargottama flag and 'strengthMultiplier' (1.0 or 2.0), the 'lagna' row, the count and names of all vargottama planets, and 'source'. The 2.0 is a Lumin convention, not a sourced quantity: no classical source assigns vargottama a multiplier, and 'scoreProvenance' says so. Read the flag, not the number.

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.

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_vargottama_planets",
    "arguments": {
      "birth_datetime": "1992-08-14T04:32:00",
      "latitude": 6.927,
      "longitude": 79.861,
      "utc_offset_minutes": 330,
      "ayanamsa": "kp"
    }
  }
}

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.