Cazimi: retrograde planets MCP Server

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Cazimi: retrograde planets is listed as active in the registry but did not answer our last check. It exposes 8 tools.

Retrograde stations, shadows and cazimi for Mercury to Pluto, to the minute UTC, from JPL DE421.

Uptime history 44 hours of history · worst hour 0%

44 hours agonow

0.0%

Uptime 24h

0 of 92 checks

Tools

read from the server

365 ms

Response time

average over 24h

open, no key

Access

streamable-http

Cazimi: retrograde planets does not always answer

Over the last week it answered 33.7% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add retrogrades --transport http https://cazimi.live/api/mcp

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

https://cazimi.live/api/mcp

~/.codex/config.toml

[mcp_servers.retrogrades]
url = "https://cazimi.live/api/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "retrogrades": {
      "url": "https://cazimi.live/api/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "retrogrades": {
      "type": "http",
      "url": "https://cazimi.live/api/mcp"
    }
  }
}

Available tools 8

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

next_mercury_cazimi

Returns the next Mercury cazimi (exact Sun–Mercury conjunction during a retrograde) after a date, with the UTC minute, the degree and 17′ window when known, and the previous cazimi. A cazimi within 12 hours of the date counts as today's and is returned as the previous one. Times are UTC, to the minute, from the ephemeris (JPL DE421, 2025–2030). This is astronomical timing, not a horoscope.

next_mercury_retrograde

Returns the next Mercury retrograde after a date (or the one in progress, until it stations direct) with its sign, pre-shadow, station retrograde, cazimi, station direct and post-shadow end. Times are UTC, to the minute, from the ephemeris (JPL DE421, 2025–2030). This is astronomical timing, not a horoscope.

next_planet_retrograde

Returns the next retrograde of Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune or Pluto after a date (or the one in progress, until it stations direct), with sign, shadows, cazimi or opposition, and stations. Times are UTC, to the minute, from the ephemeris (JPL DE421, 2025–2030). This is astronomical timing, not a horoscope.

mercury

is_mercury_retrograde

Says whether Mercury is retrograde on a date and which phase it is in (preShadow, retrograde, cazimi, postShadow or direct), with the sign, the cycle's five moments (pre-shadow, station retrograde, cazimi, station direct, post-shadow end) and days left to the next transition. Times are UTC, to the minute, from the ephemeris (JPL DE421, 2025–2030). This is astronomical timing, not a horoscope.

mercury_retrograde_dates

Lists every Mercury retrograde period that falls in or overlaps a year from 2025 to 2030, with sign, pre-shadow, station retrograde, cazimi, station direct and post-shadow end. Times are UTC, to the minute, from the ephemeris (JPL DE421, 2025–2030). This is astronomical timing, not a horoscope.

planet

is_planet_retrograde

Says whether Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune or Pluto is retrograde on a date and which phase it is in, with the sign, pre-shadow, station retrograde, cazimi (Mercury, Venus) or opposition (Mars through Pluto), station direct, post-shadow end and days left to the next transition. Times are UTC, to the minute, from the ephemeris (JPL DE421, 2025–2030). This is astronomical timing, not a horoscope.

planet_retrograde_dates

Lists every retrograde period of Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune or Pluto that falls in or overlaps a year from 2025 to 2030 (a year with none says so and names the next one), with sign, shadows, cazimi or opposition, and stations. Times are UTC, to the minute, from the ephemeris (JPL DE421, 2025–2030). This is astronomical timing, not a horoscope.

retrograde

retrograde_planets_today

Use for "which planets are retrograde" questions. For Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto on a date, returns the phase (preShadow, retrograde, postShadow or direct), the sign, the current or next cycle's moments, cazimi-day (Mercury, Venus) and opposition-day (Mars through Pluto) flags, and one sentence naming the retrograde planets and when each stations direct. Times are UTC, to the minute, from the ephemeris (JPL DE421, 2025–2030). This is astronomical timing, not a horoscope.

Endpoints

URL	Transport	State	Latency	Checked
https://cazimi.live/api/mcp	streamable-http	answering	365 ms	3 min ago

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Cazimi: retrograde planets — questions

Answers built from our own checks of this server.

What can Cazimi: retrograde planets do?

It exposes 8 tools, read directly from the server on our last check. Among them: is_mercury_retrograde, is_planet_retrograde, mercury_retrograde_dates, next_mercury_cazimi, next_mercury_retrograde, next_planet_retrograde and 2 more. 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 →

What is Cazimi: retrograde planets mostly used for?

Its tools cluster around next, mercury and planet. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.

Is Cazimi: retrograde planets working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 92 checks got a reply (0.0%), average response time 365 ms. The bar chart above shows every period we have measured.

The registry lists Cazimi: retrograde planets as active — why does it not respond?

The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.

How do I connect Cazimi: retrograde planets?

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 Cazimi: retrograde planets need an API key?

No. Cazimi: retrograde planets completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 8 of them are readable on this page. This is what we observed, not what the docs claim.