Caiyun Weather MCP. Know the weather down to the minute.
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Caiyun Weather / 彩云天气 delivers high-precision environmental data for operations across China. Your agent gets minute-level rain forecasts, real-time air quality indexes (AQI), and immediate conditions like wind speed and visibility.
It transforms complex meteorological feeds into simple, actionable reports for logistics planning or health monitoring.
What your AI agents can do
Get aqi info
Retrieves the current air quality index (AQI) and specific pollutant levels for a location.
Get daily forecast
Provides generalized weather predictions covering an entire day's worth of conditions.
Get hourly forecast
Delivers detailed weather changes, broken down hour by hour, for the near term.
Retrieves immediate readings for temperature, humidity, visibility, wind direction, and air quality index at a specific coordinate.
Provides minute-by-minute forecasts detailing the exact chance of precipitation over the next two hours.
Generates detailed hourly and daily outlooks extending up to 15 days out for planning purposes.
Gathers real-time data on common pollutants, including PM2.5 and PM10, across mainland China.
Checks current wind speed and direction at a given location to assess outdoor feasibility.
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Supported MCP Clients
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Caiyun Weather / 彩云天气: 8 Tools
Use these tools to pull specific environmental data points—from pollution levels and visibility to minute-by-minute rain forecasts—into your AI agent's workflow.
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Start using Caiyun Weather / 彩云天气 on Vinkius019d8422get aqi info
Retrieves the current air quality index (AQI) and specific pollutant levels for a location.
019d8422get daily forecast
Provides generalized weather predictions covering an entire day's worth of conditions.
019d8422get hourly forecast
Delivers detailed weather changes, broken down hour by hour, for the near term.
019d8422get minutely rain
Calculates precise rainfall forecasts minute-by-minute over a two-hour window.
019d8422get precipitation probability
Checks the likelihood of rain occurring at a specific time and location.
019d8422get realtime weather
Gathers current, live data points like temperature, humidity, and visibility for any coordinates.
019d8422get visibility data
Reports the specific distance of visible air to account for fog or dust.
019d8422get wind conditions
Outputs the current speed and direction of winds at a given point.
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Works with Claude, ChatGPT, Cursor, and more
The Model Context Protocol standardizes how applications expose capabilities to LLMs. Instead of operating in isolation, your AI gains direct access to external platforms, live data, and real-world actions through secure, standardized connections.
This server provides 8 capabilities that interface natively with Claude, ChatGPT, Cursor, and any MCP client. No middleware. No custom integration required.
Environmental checks used to take pages of manual cross-referencing.
Today, if you needed a full environmental picture for an operation, you'd open the weather site, check the forecast window. Then you’d jump over to an air quality map, find the coordinates, and copy the AQI number into your spreadsheet. If rain was even a possibility, you had to run separate checks just to see if it would hit within the next few hours.
With this MCP, you ask your agent one question: 'What are the environmental risks for site X?' The system handles the multi-source data pulls—combining get_realtime_weather, get_aqi_info, and get_minutely_rain into a single, coherent answer. You just get what you need.
Get complete environmental awareness with Caiyun Weather / 彩云天气.
Before this MCP, getting accurate wind data required one API call; rain probability needed another check. You were always limited by the number of tabs you could open and the tools available in your tech stack.
Now, all those factors—wind speed via get_wind_conditions, temperature from get_realtime_weather, pollution status from get_aqi_info—are woven together into one single query. It’s immediate environmental command.
What you can do with this MCP connector
This MCP lets your AI client treat environmental data like a conversation topic. You don't need to navigate weather maps or consult multiple specialized APIs. Instead, you ask your agent about conditions—say, 'What's the air quality and rain chance near the port today?' Your agent handles pulling together real-time temperature, pollution levels, wind patterns, and detailed rainfall probabilities from a single source.
It’s designed to act as an environmental coordinator for everything from planning outdoor deliveries to monitoring indoor air systems across retail locations. If you're building complex workflows using multiple specialized APIs, Vinkius makes it simple: connect your AI client once to access this entire catalog of tools and start getting immediate, reliable data.
019d8422-44fa-7361-9642-714a184fe729 
How Caiyun Weather MCP Works
- 1 First, subscribe to this MCP and input your Caiyun Weather Token.
- 2 Next, tell your agent what specific environmental data you need (e.g., 'What's the AQI in Shanghai?').
- 3 The agent calls the appropriate tool, retrieves the structured data, and presents it back as a natural language answer.
The bottom line is that your AI client handles all the API calls; you just ask a question.
Who Is Caiyun Weather MCP For?
Operations managers who waste time checking multiple weather sites, health facility administrators needing constant AQI updates, and logistics teams coordinating routes based on immediate rain chances. If your job depends on knowing the environment right now, this is for you.
Uses get_minutely_rain to reroute delivery vehicles before heavy localized downpours hit a zone.
Checks the air quality index using get_aqi_info to determine if HVAC needs adjustment in specific building wings.
Runs multiple forecasts, like get_hourly_forecast and get_wind_conditions, to make sure event setup can handle changing conditions over a day.
What Changes When You Connect
- Minute-by-minute rain checks mean you won't get caught off guard. Use get_minutely_rain to plan outdoor work knowing exactly when the next drizzle starts.
- You don't have to switch between AQI and weather sites anymore. Get immediate pollution data with get_aqi_info alongside current temperature readings.
- Forget vague 'good' or 'poor' forecasts. Use get_hourly_forecast for actionable, predictable changes hour by hour when planning multi-stage operations.
- Real-time visibility reports from get_visibility_data are crucial for field operations; they tell you if dust or fog is actually limiting movement.
- Check the overall forecast using get_daily_forecast to plan week-long logistics runs without needing dozens of small calls.
Real-World Use Cases
Managing a construction site shutdown
The foreman asks their agent, 'Should we pause work today?' The agent checks get_wind_conditions and gets_minutely_rain. It reports that winds are too high for the next 90 minutes and rain is probable in an hour, confirming the necessary halt.
Coordinating a large-scale outdoor event
The planner asks their agent to monitor conditions over three days. The agent uses get_daily_forecast for the big picture, then runs get_precipitation_probability checks to schedule backup indoor activities.
Monitoring a remote industrial site's air quality
The engineer queries the system using get_aqi_info. The agent immediately reports high PM2.5 levels, alerting the user that local equipment needs filter replacement before continuing operations.
Planning a cross-city delivery route
Instead of checking maps constantly, the dispatch manager asks their agent for real-time weather using get_realtime_weather at multiple waypoints. The agent compiles a single report showing current conditions and potential issues.
The Tradeoffs
Calling too many generic tools
Asking the agent to run get_daily_forecast, then also getting_hourly_forecast, and then running get_realtime_weather for the same location. This creates redundant data streams.
→ Start with one tool that covers the scope: use get_realtime_weather if you need right now, or get_daily_forecast if you need next week. Only follow up with more specific tools like get_minutely_rain when necessary.
Ignoring pollutant data
Only checking the general weather forecast and missing out on poor air quality warnings, which is critical for vulnerable populations.
→ Always run get_aqi_info first. If the index is high, use that information to modify your plan before checking any other conditions.
Assuming constant visibility
Planning a drone flight based only on temperature and ignoring potential fog or dust warnings.
→ Always check get_visibility_data. This tool provides the specific distance measure, which is more actionable than just 'low visibility'.
When It Fits, When It Doesn't
Use this MCP if your operation depends on precise environmental timing. For example, you need to know: 'Will it rain in the next 60 minutes?' (use get_minutely_rain). Or, 'Are pollution levels safe for human activity right now?' (use get_aqi_info). Don't use this if you only need a simple yes/no answer about general trends; check your specific workflow needs. If you are building a system that requires predicting changes over time, rely on the combination of get_hourly_forecast and get_daily_forecast. However, if your primary goal is merely to read static data from an existing database (like historical records), you'll need a different type of data storage tool, not this weather API.
Common Questions About Caiyun Weather MCP
How do I check if it will rain using get_minutely_rain? +
The tool gives minute-by-minute predictions for the next 120 minutes. You just need to provide the location coordinates, and it outputs the probability of precipitation in small intervals.
Is get_aqi_info enough for all environmental checks? +
No. While get_aqi_info covers pollution (PM2.5, PM10), you still need to check weather conditions using get_realtime_weather or the forecast tools.
Can I use get_daily_forecast for current readings? +
No. get_daily_forecast is meant for broad, day-to-day predictions. For what's happening right now, you must call get_realtime_weather.
What coordinates should I use for the best results? +
The tool supports Longitude/Latitude (GCJ-02) or administrative codes. Always ensure your location input matches the format required by the function call to get accurate data.
What specific details does the `get_wind_conditions` tool provide, and how do I interpret the data? +
The tool delivers both wind speed and direction for a coordinate. The output includes numerical measurements (like km/h) alongside cardinal directions (N, S, E, W). This lets you know not just how fast it's blowing, but also which way it’s coming from.
How is the data retrieved using `get_hourly_forecast` different from what I get with `get_daily_forecast`? +
The hourly forecast breaks down weather minute-by-minute for specific blocks of time. The daily forecast gives you a broad summary, covering general conditions and averages for an entire 24-hour period. Use the hourly tool when timing matters.
What should I know about usage limits or rate restrictions when calling `get_realtime_weather`? +
Always ensure your Caiyun Weather Token is active and correctly formatted before making calls. High-volume usage can trigger rate limiting, so plan your API requests to prevent service interruptions.
Aside from pollution levels, what does `get_visibility_data` measure? +
This tool measures atmospheric visibility distance (usually in kilometers). It tells you how far the horizon is clear due to fog, smog, or precipitation. This data is key for logistics planning.
Use it with your favorite AI tools
Connect this server to Cursor, Claude, VS Code, and more.