Advanced techniques
Six-Level Sub Lord Chain (Four Step lineage)
get_six_level_sublord_chain
[KP extended, the Four Step lineage] For each cusp of an event, six lords: the cusp's sign, star and sub lords (levels 1 to 3, KSK's, off the 249 table), then the sign, star and sub lords of the SUB LORD'S OWN position (levels 4 to 6). KSK stops at level 3. Level 5, the sub lord's star lord, is Sunil Gondhalekar's Four Step end-result indicator, named on each row as 'fourStepAuthority'. Returns '{ school, author, system, divergencePoint, levels[{ level, name, whose }], event, chains: [{ house, cuspLongitude, level1_signLord .. level6_subLordSubLord, allLevels, uniquePlanets, concentrationScore, fourStepAuthority }], scoreProvenance }'. 'concentrationScore' has no source ('scoreProvenance'). For the Four Step verdict per cusp, get_four_step_verdict.
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 whose cusps to chain (default: Marriage). |
Example call
Send the request as a standard MCP tools/call:
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_six_level_sublord_chain",
"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.