← All endpoints
Air quality
https://x402-seller.onrender.com/air/quality
answers 402
Returns the US EPA Air Quality Index and pollution levels for a location.
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.001
- Network
- base
- Pay to
- 0xbd61dfb01f81c91f02b0ccd51b0220e0c8918639
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 67 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-09-06T01:09:57.489Z (20d ago)
- Category
- data
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fx402-seller.onrender.com%2Fair%2Fquality"