Carbon Interface vs Weatherapi
A side-by-side look at the Carbon Interface and Weatherapi MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Carbon Interface for environment & nature work as a local process; choose Weatherapi for environment & nature as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Carbon Interface when
- You need dedicated capabilities in the Environment & Nature domain.
- You prefer a local stdio subprocess transport.
- You want tools like
estimate_electricity, estimate_flight, estimate_vehicle.
Choose Weatherapi when
- You need dedicated capabilities in the Environment & Nature domain.
- You prefer a local stdio subprocess transport.
- You want tools like
current, forecast, astronomy.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Environment & Nature | Environment & Nature |
| Quality signal | 52/100 · Good | 52/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | Not declared |
| Pricing | Not declared | Not declared |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 0 | 0 |
| Directory activity | 1 views 0 installs 0 upvotes | 0 views 0 installs 0 upvotes |
| Tools | 3 | 4 |
| Full listing | View Carbon Interface | View Weatherapi |
Tools & capabilities
Carbon Interface tools 3
estimate_electricityEstimate CO2 emissions from electricity usage. Returns carbon emissions in grams, kg, and metric tons. Example: estimate_electricity(500, "us", "kwh") for 500 kWh in the US.estimate_flightEstimate CO2 emissions from a flight. Provide number of passengers and flight legs (departure/arrival airport IATA codes). Returns per-passenger and total carbon emissions. Example: estimate_flight(2, [{"departure_airport": "SFO", "destination_airport": "JFK"}]).estimate_vehicleEstimate CO2 emissions from driving a vehicle. Provide distance and a vehicle model ID (from Carbon Interface). Returns carbon emissions in grams, kg, and metric tons. Example: estimate_vehicle(100, "7268a9b7-17e8-4c8d-acca-57059252afe9", "mi").
Weatherapi tools 4
currentGet current/real-time weather for a location, including temperature, condition, humidity, wind, UV, and air quality (AQI). Location can be a city name, "lat,lon", zip code, or IATA airport code. Example: current({ q: "London", aqi: true }).forecastGet a multi-day weather forecast for a location: daily high/low temperature, condition, chance of rain, total precipitation, and sunrise/sunset times. Up to 10 days. Example: forecast({ q: "Tokyo", days: 5 }).astronomyGet astronomy data for a location and date: sunrise, sunset, moonrise, moonset, moon phase, and moon illumination. Example: astronomy({ q: "Reykjavik", dt: "2026-06-21" }).marineGet marine/ocean conditions forecast for a coastal location: significant wave height, swell height, water temperature, and wind. Up to 7 days, sampled every 6 hours. Example: marine({ q: "33.7,-118.4", days: 2 }).
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Carbon Interface
{
"mcpServers": {
"carbon-interface": {
"command": "npx",
"args": [
"-y",
"@pipeworx/mcp-carbon-interface"
]
}
}
}
Weatherapi
{
"mcpServers": {
"weatherapi": {
"command": "npx",
"args": [
"-y",
"@pipeworx/mcp-weatherapi"
]
}
}
}
Frequently asked questions
Carbon Interface is categorized under Environment & Nature and uses a local stdio subprocess. Weatherapi belongs to Environment & Nature and uses a local stdio subprocess. Pick Carbon Interface for environment & nature work and Weatherapi for environment & nature.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Carbon Interface has no declared pricing — check the project's own site. Weatherapi has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add carbon-interface and weatherapi as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Carbon Interface has a quality signal of 52/100 (Good) with 1 views, 0 installs and 0 GitHub stars. Weatherapi has 52/100 (Good) with 0 views, 0 installs and 0 GitHub stars.