# Sunrise & Sunset Times

> Sunrise, sunset, twilight, golden hour and moon times for any place on Earth. Free, no API key.

- name: org.sunrise-sunset/sun-times
- version: 1.1.0
- connection class: R0 (autonomous)
- trust: 95/100
- quality: 81/100 (new)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/org.sunrise-sunset%2Fsun-times
- tools: https://api.protogrid.dev/v1/servers/org.sunrise-sunset%2Fsun-times/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "sun-times": {
      "type": "http",
      "url": "https://api.sunrise-sunset.org/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 97
- freshness: 100
- provenance: 85
- drivers: +repository +dns-namespace +website +reachable +uptime-91% +updated-4d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 81/100 (new)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 86 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 2 of 2 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: get_sun_times (destructiveHint, idempotentHint); get_sun_times_range (destructiveHint, idempotentHint)
- pass `tools.token_cost`: about 593 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: n/a (weight 15)

- n/a `stability.changes`, `stability.rug_pull`: tool history recorded for 6 of the 7 days needed

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 2, about 593 tokens to load them all
- tool set hash: 06cf42efd3a0cc7b57ffd435123f32e3
- tools last changed: 2026-10-16T18:14:09.705Z
- badge: [![protogrid quality](https://protogrid.dev/badge/org.sunrise-sunset/sun-times.svg)](https://protogrid.dev/servers/org.sunrise-sunset/sun-times)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-16 `get_sun_times_range` changed (description, outputSchema, annotations)
  - before: Same per-day data as get_sun_times but for an inclusive date range (up to 366 days) in a single call. Use this instead of repeated get_sun_times calls when you need several consecutive days. The days array may contain fewer entries than the number of dates requested: calendar days that never existed in that timezone (Samoa skipped 30 December 2011 when it crossed the date line) are left out, so read each entry's date field instead of assuming one per requested date. Free data by sunrise-sunset.org. Attribution with a link to https://sunrise-sunset.org is required when displaying this data.
  - after: Same per-day data as get_sun_times but for an inclusive date range (up to 366 days) in a single call. Use this instead of repeated get_sun_times calls when you need several consecutive days. The days array may contain fewer entries than the number of dates requested: calendar days that never existed in that timezone (Samoa skipped 30 December 2011 when it crossed the date line) are left out, so read each entry's date field instead of assuming one per requested date.
- 2026-10-16 `get_sun_times` changed (description, outputSchema, annotations)
  - before: Sunrise, sunset, solar noon, day length, civil/nautical/astronomical twilight, dawn/dusk, first/last light, golden hour, blue hour, sunrise/sunset azimuth, solar noon altitude, moonrise/moonset, moon phase and illumination for any coordinates on Earth and any date. Times are ISO 8601 in the local timezone of the location. Polar day/night handled via sun_status (normal | midnight_sun | polar_night); events that do not occur are null. Free data by sunrise-sunset.org. Attribution with a link to https://sunrise-sunset.org is required when displaying this data.
  - after: Sunrise, sunset, solar noon, day length, civil/nautical/astronomical twilight, dawn/dusk, first/last light, golden hour, blue hour, sunrise/sunset azimuth, solar noon altitude, moonrise/moonset, moon phase and illumination for any coordinates on Earth and any date. Times are ISO 8601 in the local timezone of the location. Polar day/night handled via sun_status (normal | midnight_sun | polar_night); events that do not occur are null.

Full history: https://api.protogrid.dev/v1/servers/org.sunrise-sunset%2Fsun-times/changes

## Remotes

- https://api.sunrise-sunset.org/mcp (streamable-http, auth none, reachable true, uptime30d 0.9130435)

## Packages

_none_

## Tools (2)

- `get_sun_times`: Sunrise, sunset, solar noon, day length, civil/nautical/astronomical twilight, dawn/dusk, first/last light, golden hour, blue hour, sunrise/sunset azimuth, solar noon altitude, moonrise/moonset, moon phase and illumination for any coordinates on Earth and any date. Times are ISO 8601 in the local timezone of the location. Polar day/night handled via sun_status (normal | midnight_sun | polar_night); events that do not occur are null.
- `get_sun_times_range`: Same per-day data as get_sun_times but for an inclusive date range (up to 366 days) in a single call. Use this instead of repeated get_sun_times calls when you need several consecutive days. The days array may contain fewer entries than the number of dates requested: calendar days that never existed in that timezone (Samoa skipped 30 December 2011 when it crossed the date line) are left out, so read each entry's date field instead of assuming one per requested date.