Weatherapi

What the Weatherapi MCP server does

The Weatherapi MCP server exposes four tools for querying WeatherAPI.com. current returns real-time conditions such as temperature, weather description, humidity, wind, UV, and optional air-quality information. Locations can be supplied as city names, latitude and longitude pairs, ZIP codes, or IATA airport codes.

forecast provides daily weather predictions for up to 10 days. Results include high and low temperatures, conditions, precipitation probability, total precipitation, and sunrise and sunset times.

astronomy returns sun and moon information for a specified location and date. Available data includes sunrise, sunset, moonrise, moonset, moon phase, and moon illumination.

marine is intended for coastal locations. It provides forecasts for significant wave height, swell height, water temperature, and wind for up to seven days, with samples at six-hour intervals.

How it works

The Weatherapi MCP server can be connected through a hosted, streamable HTTP endpoint or launched as a local stdio process. The hosted pack endpoint is available at https://gateway.pipeworx.io/weatherapi/mcp. It lists the Weatherapi tools along with shared Pipeworx gateway tools, including routing and discovery tools. The full gateway endpoint is also available when an agent needs direct access to the broader catalog.

The local package exposes only the four WeatherAPI.com tools and communicates through standard input and output. The gateway also supports direct HTTP tool calls, such as posting JSON to /v1/tools/current. The ask_pipeworx gateway tool can accept a natural-language question and select a suitable tool and arguments, when using a gateway connection.

Setup and configuration

For a hosted MCP connection, add the pack endpoint to the client configuration:

{
  "mcpServers": {
    "weatherapi": {
      "url": "https://gateway.pipeworx.io/weatherapi/mcp"
    }
  }
}

For local stdio use, configure the package through npx:

{
  "mcpServers": {
    "weatherapi": {
      "command": "npx",
      "args": ["-y", "@pipeworx/mcp-weatherapi"]
    }
  }
}

The standalone mode does not require a Pipeworx account. No environment variables are specified in the provided setup instructions.

Tools and capabilities

• current: Query present weather conditions and optionally air quality.
• forecast: Request daily forecasts for one to ten days.
• astronomy: Look up solar and lunar events for a location and date.
• marine: Retrieve coastal forecasts for one to seven days at six-hour intervals.
• ask_pipeworx: Ask a natural-language question through the gateway, which can route the request across available Pipeworx sources.

The Weatherapi MCP server is suited to travel assistants, outdoor planning workflows, location-aware agents, and applications that need marine conditions alongside ordinary weather data.

Limitations and notes

The scoped hosted endpoint includes shared gateway meta-tools in addition to the Weatherapi tools, so its reported tool count is larger than the four tools documented here. The local stdio package does not include those shared tools or gateway-wide routing. Marine results require a coastal location, and forecast durations have separate maximums: 10 days for ordinary forecasts and seven days for marine forecasts.

The service wraps WeatherAPI.com, so requests depend on the data and behavior available from that provider.