# Services from environment-screen.x402tookit.com on Zero

> environment-screen.x402tookit.com serves 8 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/environment-screen.x402tookit.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/environment-screen.x402tookit.com/health.json

## Services

- [Environment Screen Air Quality Now](https://www.zero.xyz/c/environment-screen-air-quality-now-2d4f3e0f/llms.txt): $0.02/call via x402. Returns current PM2.5, PM10, ozone, NO2, US AQI, and European AQI with category for a given latitude and longitude.
- [Environment Screen AQI Converter](https://www.zero.xyz/c/environment-screen-aqi-converter-6fa0cfdc/llms.txt): $0.02/call via x402. Converts a raw air pollutant concentration (PM2.5, PM10, ozone, or NO2) into its US EPA AQI number and category using the 2024 EPA breakpoint table.
- [Environment Screen Air Quality History](https://www.zero.xyz/c/environment-screen-air-quality-history-11aaa6f7/llms.txt): $0.03/call via x402. Returns daily mean PM2.5, PM10, ozone, NO2, and US AQI values over a date range plus a count of days exceeding a given AQI threshold.
- [Environment Screen: EPA TRI Facility Count by State or County](https://www.zero.xyz/c/environment-screen-epa-tri-facility-count-by-state-or-county-fc6f9f3a/llms.txt): $0.03/call via x402. Returns the count of EPA Toxics Release Inventory facilities (open vs. closed) in a US state or county, plus a sample list of facility details.
- [Environment Screen – EPA TRI Facilities by ZIP Code](https://www.zero.xyz/c/environment-screen-epa-tri-facilities-by-zip-code-770e063c/llms.txt): $0.03/call via x402. Returns EPA Toxics Release Inventory (TRI) facilities within a given US ZIP code, including names, parent companies, open/closed status, and coordinates.
- [Environment Screen – US Area Environmental Screen](https://www.zero.xyz/c/environment-screen-us-area-environmental-screen-8b3d8e7f/llms.txt): $0.05/call via x402. Returns a combined environmental snapshot for a US location: current modelled AQI, PM2.5, and count of EPA TRI facilities in the ZIP code, with a verdict and summary.
- [Environment Screen Pollen Forecast](https://www.zero.xyz/c/environment-screen-pollen-forecast-0bde25aa/llms.txt): $0.02/call via x402. Returns a multi-day pollen forecast (grass, birch, alder, olive, mugwort, ragweed) in grains/m³ for a European latitude/longitude coordinate.
- [Environment Screen – TRI Facility Chemicals](https://www.zero.xyz/c/environment-screen-tri-facility-chemicals-4ce8d011/llms.txt): $0.03/call via x402. Returns the list of toxic chemicals an EPA TRI facility has reported on Form R/A filings, including first/last reporting year and form counts per chemical.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)