Science & Math

Connect CycleCalcs to any app

CycleCalcs computes astronomical event data for a given location and date. Callers can retrieve sunrise, sunset and twilight times, moonrise and moonset times, the current moon phase and illumination, planetary positions and visibility, upcoming solar and lunar eclipses, and the dates of equinoxes and solstices for a year. Results are returned as interpreted values rather than raw ephemeris tables. No credentials required.

No account neededcyclecalcs.com
8 actions

What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.

Build solutions, not workarounds.

What do you want to automate with CycleCalcs?

Ask the assistant

You'll sign in before anything runs. What you typed comes with you.

Connect your AI client

Give your AI client this address.

https://mcp.apiant.ai

Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser.

Set it up in your client
Claude Code

Run this in the directory you want to work in.

claude mcp add --transport http -s project apiant-ai https://mcp.apiant.ai

Start Claude Code there, approve the server, and sign in in the browser page it opens.

Claude Code guide (opens in a new tab)
Claude, web and desktop

Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first.

Setup guide (opens in a new tab)
Cursor

Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser.

Setup guide (opens in a new tab)
Zed

Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.

Setup guide (opens in a new tab)
Codex and the ChatGPT desktop app

Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in.

Setup guide (opens in a new tab)
Any other MCP client

Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection.

Setup guide (opens in a new tab)

Popular

CycleCalcs with the apps people pair it with most

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What your agent can do with CycleCalcs

Triggers and actions 8 actions

  • Action
    Find places

    Looks up a place by name or reverse-looks-up by coordinates against the self-hosted GeoNames index, returning name, region, country, coordinates, timezone, and a stable place_id for use in other calls.

  • Action
    Get angular separation

    Returns the angular separation between two named targets at an instant, plus the minima of that separation across a window.

  • Action
    Get body positions

    Returns where a given body is, in a given reference frame, with atmospheric refraction stated, for a location/date.

  • Action
    Get dark observing window

    Returns the genuinely dark, moonless observing window of a night (astronomical night intersected with the Moon being down), ranked across up to 62 nights with a trend.

  • Action
    Get planet positions

    Returns all eight planets in one request: place, brightness, apparent size, retrograde state, next station, and whether each is worth observing tonight.

  • Action
    Get rise and set times

    Returns rise, transit, set, and lower-transit times for a named celestial object at a location/date, with explicit circumpolar/never-rises status.

  • Action
    Get sun times

    Returns the full solar day for a location/date: sunrise, sunset, twilight boundaries, azimuth, day length, and polar-day/night status.

  • Action
    Get twilight times

    Returns civil, nautical, and astronomical twilight plus day/night as non-overlapping intervals tiling the whole day for a location/date.

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Questions

CycleCalcs, answered

What can your agent do in CycleCalcs?

Any of CycleCalcs's 8 actions, including Find places, Get angular separation, Get body positions and Get dark observing window. Your agent maps the data both ways and tests every scenario before it ships.

Which apps can CycleCalcs connect to?

Any app in the catalog; the list on this page pairs CycleCalcs with each of them. If the other app is missing, point your agent at its API documentation and it builds the connector.

What happens when something fails?

Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships.

Is there a free plan?

Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.