Decibel Shield — Noise & Decibel Data
Noise data tools for AI agents — free, no auth, no config. - **get_city_noise** — estimated noise levels for 50 major world cities (ranked, WHO-anchored) - **get_us_city_noise_exposure** — measured noise exposure for the 100 largest US cities (federal BTS data) - **list_loudest_cities** — the global ranking - **lookup_sound_level** — decibel levels of everyday sounds (CDC/NIOSH-sourced) - **safe_exposure_time** — NIOSH safe-exposure math for any dB level - **get_decibel_shield_app** — about the Decibel Shield iOS sound meter Data is CC BY 4.0 — please cite decibelshield.app. Docs: https://decibelshield.app/mcp/
First seen 2 Oct 2026. Evidence as of 5 Oct 2026.
Tools
No tool list captured yet.
Change history
No changes since the first observation. The first snapshot is the baseline.
| Source | Listing | First seen | Last seen | Versions |
|---|---|---|---|---|
| Smithery | myappstackdev/decibel-shield | 2 Oct 2026 | 5 Oct 2026 | 1 |