TianJi Astrology MCP Server

by feifeizhao25-ship-it Your server? Claim it

answering

TianJi Astrology is answering right now. Last checked 8 min ago. It exposes 4 tools. Last commit 1 Nov 2026.

Ephemeris-grade natal charts, current transits, zodiac sign profiles. No API key.

Uptime history 9 hours of history

9 hours agonow

100.0%

Uptime 24h

33 of 33 checks

Tools

read from the server

364 ms

Response time

average over 24h

Stars

last commit 1 Nov 2026

Nothing serious here today

Today is the operative word: we check TianJi Astrology every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add tj-mcp --transport http https://mcp.tianji-astrology.com/mcp

Settings → Connectors → Add custom connector, then paste this address

https://mcp.tianji-astrology.com/mcp

~/.codex/config.toml

[mcp_servers.tj-mcp]
url = "https://mcp.tianji-astrology.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "tj-mcp": {
      "url": "https://mcp.tianji-astrology.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "tj-mcp": {
      "type": "http",
      "url": "https://mcp.tianji-astrology.com/mcp"
    }
  }
}

Available tools 4

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

compute

compute_natal_chart

Compute a full natal (birth) chart: 10 planets (sign/degree/house/retrograde), 12 Placidus house cusps, and inter-planetary aspects (major aspects, classic orbs). Pass lng/lat/tz_str (e.g. -74.01, 40.71, 'America/New_York') for exact offline computation; otherwise city+nation are geocoded online.

current

get_current_transits

Today's planetary positions (UTC now at Greenwich) — the current sky, for transit analysis, daily overviews, and timing work.

sign

get_sign_profile

Reference card for a zodiac sign: element, modality, ruling planet.

validate

validate_interpretation

Anti-hallucination confirmation gate (kosma-style): verify interpretation claims are grounded in the chart before publishing them. chart_json = exact JSON from compute_natal_chart or get_current_transits. claims = JSON array: [{"text": "...", "factors": [ {"type": "aspect", "a": "Sun", "b": "Moon"}, # aspect exists in chart {"type": "planet_house", "a": "Sun", "b": 5}, # planet is in that house {"type": "planet_sign", "a": "Sun", "b": "Leo"}, # planet is in that sign {"type": "house_sign", "a": 5, "b": "Leo"}]}] # house cusp is in that sign A claim is supported only if >= 2 of its factors independently exist in the chart. Returns per-claim verdicts; gate = "blocked" if any claim is unsupported — rewrite the claim against verified factors or drop it.

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.tianji-astrology.com/mcp	streamable-http	answering	370 ms	8 min ago

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TianJi Astrology — questions

Answers built from our own checks of this server.

What can TianJi Astrology do?

It exposes 4 tools, read directly from the server on our last check. Among them: compute_natal_chart, get_current_transits, get_sign_profile, validate_interpretation. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is TianJi Astrology working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 33 of 33 checks got a reply (100.0%), average response time 364 ms. The bar chart above shows every period we have measured.

How do I connect TianJi Astrology?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does TianJi Astrology need an API key?

No. TianJi Astrology completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is TianJi Astrology?

It answers our handshake in 364 ms on average, which is faster than 35% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is TianJi Astrology open source?

The code is open source: it is published under the MIT licence, written in Python and 0 stars on GitHub. The licence covers the code in the repository, not the hosted service at mcp.tianji-astrology.com, which runs on its operator's own terms.