"Software or tools developed using Java" matching MCP connectors:

Swiss weather data for AI assistants — forecasts, measurements, stations, pollen.

Keyless open data for 84 German cities: 12 lean read-only MCP tools covering 67 data types.

Japan, Korea and UK official data for AI agents: filings, FX, weather, travel, patents, AI tools.

Pay-per-use weather, environment, finance, and on-chain intelligence tools for AI agents via x402.

257 tools across 56 US public-data domains: sanctions, FMCSA, SEC, courts, energy. Free tier.

EPW/DDY weather files - TMY/AMY/CMIP6 morphing, UHI, events, smoke. 3 of 4 tools anon-free.

Read-only airport delay, weather, and 24h forecast tools for AI assistants. Airport-level only.

Provide real-time and forecast weather information for locations in the United States using natura…

[blackboxfoundry/livedatalink](https://github.com/blackboxfoundry/livedatalink) [![blackboxfoundry/livedatalink MCP server]☁️ - 62 real-time data tools across 14 domains via one MCP endpoint. Finance, crypto, FMCSA, sanctions screening, federal courts, weather, vehicles, cybersecurity, FEMA disasters, property. One bearer token, one bill. Free tier available.

17+ Japan MCP tools (weather/calendar v2/local-pack/enrich). x402 on Base, wallet-free trial.

Weather, code search, currency & Solana trust scoring as MCP tools. Free, no API key needed.

135 MCP tools: geo, email, phone, company, DNS, FX, equities, weather, tax, econ, intel — one key.

Geocoding, truck routing, traffic, weather, and place search via MCP — 11 hosted tools.

Real-time weather conditions, Dog Walk Index scores, and drive route rain checks for any US city. Three tools: get_weather, check_drive_rain, get_forecast. No API key required.

FEMA disasters, NOAA weather alerts, USGS earthquakes. 4 tools.