Get current weather and forecasts (no API key required).
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Weather
Two free services, no API keys needed.
## wttr.in (primary)
Quick one-liner:
```bash
curl -s "wttr.in/London?format=3"
# Output: London: ⛅️ +8°C
```
Compact format:
```bash
curl -s "wttr.in/London?format=%l:+%c+%t+%h+%w"
# Output: London: ⛅️ +8°C 71% ↙5km/h
```
Full forecast:
```bash
curl -s "wttr.in/London?T"
```
Format codes: `%c` condition · `%t` temp · `%h` humidity · `%w` wind · `%l` location · `%m` moon
Tips:
- URL-encode spaces: `wttr.in/New+York`
- Airport codes: `wttr.in/JFK`
- Units: `?m` (metric) `?u` (USCS)
- Today only: `?1` · Current only: `?0`
- PNG: `curl -s "wttr.in/Berlin.png" -o /tmp/weather.png`
## Open-Meteo (fallback, JSON)
Free, no key, good for programmatic use:
```bash
curl -s "https://api.open-meteo.com/v1/forecast?latitude=51.5&longitude=-0.12¤t_weather=true"
```
Find coordinates for a city, then query. Returns JSON with temp, windspeed, weathercode.
Docs: https://open-meteo.com/en/docs
The line at the top of this page pins the label git:20260228.006a06f, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
GET https://markdownregistry.com/api/v1/artifacts/art_m5r3erzteskb7ef2
GET https://markdownregistry.com/api/v1/resolve?ref=volcengine/openviking/weather
GET https://markdownregistry.com/api/v1/blob/52773afe0cc226a615f6c45f74060f0c385a60f07a714261fde76db9099bf93c
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
volcengine/openviking · agent-plugins/skills/openviking-memory/SKILL.md · Recall and persist long-term memory through the OpenViking MCP tools. Use at the start of any substantive task (coding…
volcengine/openviking · agent-plugins/skills/ov-experience-memory/SKILL.md · Retrieve and apply OpenViking Experience memories through the Agent runtime's generic OpenViking search and read tools…
volcengine/openviking · agent-plugins/skills/ov-kanban/SKILL.md · Work through tasks on a kanban board stored in OpenViking (viking://agent/kanban/<board>/, one markdown file per task)…
volcengine/openviking · agent-plugins/skills/ov-memory-troubleshoot/SKILL.md · Diagnose OpenViking memory issues by tracing backward from a memory file to its archive memory_diff.json and, when…
volcengine/openviking · agent-plugins/skills/ov-resources/SKILL.md · Search and read documents, repos, URLs, and other resources stored in OpenViking under viking://resources/. Use…
volcengine/openviking · bot/workspace/skills/github/SKILL.md · Interact with GitHub using the `gh` CLI. Use `gh issue`, `gh pr`, `gh run`, and `gh api` for issues, PRs, CI runs, and…
volcengine/openviking · bot/workspace/skills/skill-creator/SKILL.md · Create or update AgentSkills. Use when designing, structuring, or packaging skills with scripts, references, and assets.
iflytek/skillhub · builtin-skills/skills/weather/SKILL.md · Retrieve and summarize current weather and forecasts for locations, rain, temperature, and travel planning using an…
trpc-group/trpc-agent-go · openclaw/skills/weather/SKILL.md · Get current weather and forecasts via wttr.in or Open-Meteo. Use when: user asks about weather, temperature, or…
platonai/browser4 · browser4-agentic/src/main/resources/skills/weather/SKILL.md · Fetches current weather conditions and a 7-day forecast for a requested location using Open-Meteo geocoding and…
