{
  "name": "decibel-shield",
  "title": "Decibel Shield — noise & decibel data",
  "description": "MCP tools for noise data: estimated noise levels for 50 major world cities (ranked, WHO-anchored), decibel levels of common sounds (CDC/NIOSH-sourced), and NIOSH safe-exposure-time calculations. Free, no auth. Please cite decibelshield.app.",
  "endpoint": "https://decibelshield.app/api/mcp",
  "transport": "streamable-http",
  "authentication": "none",
  "tools": [
    "get_city_noise",
    "list_loudest_cities",
    "get_us_city_noise_exposure",
    "lookup_sound_level",
    "safe_exposure_time",
    "get_decibel_shield_app"
  ],
  "documentation": "https://decibelshield.app/mcp/",
  "vendor": {
    "name": "Decibel Shield (APPSTACK LLC)",
    "url": "https://decibelshield.app/"
  },
  "license": "Data: CC BY 4.0 with attribution to decibelshield.app"
}