Sunrise Sunset Skill

Overview

A sunrise and sunset times API that works like a sunrise sunset calculator for any coordinates: get sunset time, dawn, dusk and golden hour in one call. Sunrise Sunset works by calculating the sunrise and sunset times based on the location and date provided. It returns the sunrise and sunset times in UTC in a structured format. Pass local=true to get the IANA timezone of the coordinates on any plan, and on paid plans every time again as local ISO 8601 with its UTC offset, daylight saving included, so no separate timezone lookup is needed.

Live Test Sunrise Sunset Skill Skill →

The tool

Once your client is connected to the VerveKit server, this appears in its tool list as SunriseSunsetSkill. It is read-only and open-world — it fetches and never mutates anything on your side — so most clients call it without asking you to confirm.

{
  "name": "SunriseSunsetSkill",
  "arguments": {
    "lat": "36.72016",
    "lon": "-4.42034"
  }
}

You do not name the tool yourself; the model picks it. Asking about 36.72016 in the terms this skill covers is enough for it to reach for SunriseSunsetSkill on its own — naming it explicitly also works, and is the way to force the call.

Connecting

One server URL covers every skill in the catalog, including this one. Authorization is OAuth: the client opens a browser once, and there is no key to paste into a config file.

{
  "mcpServers": {
    "vervekit": {
      "url": "https://api.vervekit.com/v1/mcp"
    }
  }
}

https://api.vervekit.com/v1/mcp

Per-client setup — Claude, Cursor, VS Code, ChatGPT — is on the MCP setup page.

Arguments

These are the properties on the tool's inputSchema, so a well-behaved client validates them before the call is made. Premium arguments are accepted on every plan but only take effect on plans that include them.

What the model gets back

The result carries a structuredContent object matching the tool's declared outputSchema, so a client reads fields without parsing prose. status is "ok" and error is null on success; a null field means the value was not available for that input, not that the call failed.

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{
  "status": "ok",
  "error": null,
  "data": {
    "solarNoon": "2026-01-16T12:28:27.256Z",
    "sunrise": "2026-01-16T07:30:14.174Z",
    "sunset": "2026-01-16T17:26:40.338Z",
    "sunriseEnd": "2026-01-16T07:33:11.786Z",
    "sunsetStart": "2026-01-16T17:23:42.726Z",
    "dawn": "2026-01-16T07:02:03.459Z",
    "dusk": "2026-01-16T17:54:51.053Z",
    "nauticalDawn": "2026-01-16T06:30:17.010Z",
    "nauticalDusk": "2026-01-16T18:26:37.502Z",
    "nightEnd": "2026-01-16T05:59:14.883Z",
    "night": "2026-01-16T18:57:39.629Z",
    "goldenHourEnd": "2026-01-16T08:09:09.341Z",
    "goldenHour": "2026-01-16T16:47:45.171Z",
    "timezone": "Europe/Madrid",
    "localTimes": {
      "solarNoon": "2026-01-16T13:28:27+01:00",
      "sunrise": "2026-01-16T08:30:14+01:00",
      "sunset": "2026-01-16T18:26:40+01:00",
      "sunriseEnd": "2026-01-16T08:33:11+01:00",
      "sunsetStart": "2026-01-16T18:23:42+01:00",
      "dawn": "2026-01-16T08:02:03+01:00",
      "dusk": "2026-01-16T18:54:51+01:00",
      "nauticalDawn": "2026-01-16T07:30:17+01:00",
      "nauticalDusk": "2026-01-16T19:26:37+01:00",
      "nightEnd": "2026-01-16T06:59:14+01:00",
      "night": "2026-01-16T19:57:39+01:00",
      "goldenHourEnd": "2026-01-16T09:09:09+01:00",
      "goldenHour": "2026-01-16T17:47:45+01:00"
    }
  }
}

Response fields

Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.

Failure modes

Errors come back as tool errors carrying a sentence the model can act on, not a bare status code. Error handling covers the full list.

A call costs 2 credits each time the tool actually runs; a model that reasons about the tool without calling it costs nothing.

Use cases

Golden Hour Photography

Camera apps check golden hour start and civil twilight times to alert photographers when optimal natural lighting begins.

Municipal Lighting Automation

Smart lighting controllers switch streetlights and architectural fixtures on at sunset and off at dawn based on coordinate lookups.

Visual Flight Dispatch

Before dispatching visual flight rules flights, aviation platforms check nautical dawn and dusk to verify legal daylight operating hours.

Agricultural Spray Scheduling

To schedule field treatments during cooler periods, farm management systems use sunrise and dusk timestamps to plan early morning passes.

Other ways to use Sunrise Sunset Skill

Set up Sunrise Sunset Skill on VerveKit, or reach the same source a different way. Your VerveKit account and credits work on all of them — one key, one balance.

Related

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