MCP server

AsterNym Official

com.asternym/asternym

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Birth charts for agents: BaZi, Chinese and Western zodiac, numerology. Keyless and read-only.

Website

At a glance

Type

MCP server

Publisher

asternym.com (verified by the MCP Registry)

Status

Working at last check

Tools

6

Token cost

About 2,034 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http asternym https://asternym.com/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.asternym]
url = "https://asternym.com/mcp"

Gemini CLI

{"mcpServers":{"asternym":{"httpUrl":"https://asternym.com/mcp"}}}

Cursor

{"mcpServers":{"asternym":{"url":"https://asternym.com/mcp"}}}

VS Code

{"servers":{"asternym":{"type":"http","url":"https://asternym.com/mcp"}}}

Antigravity

agy mcp add asternym https://asternym.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"asternym","server_url":"https://asternym.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"asternym","server_url":"https://asternym.com/mcp"}

Tools

• asternym_bazi ~338 tokens
  Pillars, day master, hidden stems (藏干) with their ten gods (十神), element counts, dominant and missing elements, na yin, the twelve stages and the void branches. The year turns at Li Chun, not at 1 January or Lunar New Year. Without a time there is no hour pillar and the response says so. The same th
• asternym_bazi_hours ~325 tokens
  The twelve 時辰 of a day, each with its hour pillar, hidden stems, ten god and the element counts of the whole chart at that hour. The 23:00-00:00 slot is returned separately as lateZi: from 23:00 the hour pillar has already turned to the next day's 子 (早子時) while the day pillar has not, so it differs
• asternym_natal ~440 tokens
  Ten planets with sign, degree, whole-sign house and retrograde flag; the Ascendant, midheaven and their opposites; the twelve whole-sign houses; the mean lunar nodes; the five major aspects with orb and whether each is applying or separating; plus stelliums, retrogrades and the Moon's phase. Tropica
• asternym_numerology ~281 tokens
  Pythagorean numerology: Life Path, birthday number and its components, and with a name the expression, soul urge, personality, cornerstone, capstone and hidden passion. Master numbers are kept where the position allows. The same thing over HTTP: POST https://asternym.com/api/v1/numerology.
• asternym_reading ~300 tokens
  Sun sign, Chinese animal and element, BaZi day master and pillars, Life Path and the AsterNym identity, from the same engine as every page on the site. The same thing over HTTP: POST https://asternym.com/api/v1/reading.
• asternym_zodiac ~350 tokens
  The Sun's sign from its apparent ecliptic longitude, with a cusp reported rather than resolved by assuming noon, and the Chinese animal, element and polarity with the Lunar New Year boundary. Note the two calendars differ on purpose: the Chinese year here turns at Lunar New Year, while the BaZi year

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