x402 census · data.intel.rallylive.ca · 6c1963ee6926 · JSON
GET /data/air-quality/ho-chi-minh-city
live
Air quality in Ho Chi Minh City right now: European and US AQI, PM2.5, PM10, ozone, nitrogen dioxide, sulphur dioxide and carbon monoxide with a health label, from Open-Meteo Air Quality (CAMS). Outdoor-activity and health decisions for Ho Chi Minh City. $0.01 per call.
Verdict: live. The unpaid GET reached a valid 402. The live amount equals the catalog price.
Facts from the catalogs
| Field | Value |
|---|---|
| URL | https://data.intel.rallylive.ca/data/air-quality/ho-chi-minh-city |
| Method | GET |
| Price | $0.01 USDC = 10000 atomic units of 0x036CbD53842c5426634e7929541eC2318f3dCF7e |
| Network | eip155:84532 (base-sepolia) — testnet |
| payTo | 0xFC24FD34da9e49A0110DCaEe3Ad30eC54175eBB3 |
| Seller | data.intel.rallylive.ca |
| Catalogs | payai (row updated 2026-09-29) |
| Listed since (lower bound) | 2026-09-29 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-29 |
| CDP quality counters | not in the CDP catalog |
| Category (keyword rule) | weather/geo/maps |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | air-quality-ho-chi-minh-city · air-quality, aqi, pm2.5, pollution, ho-chi-minh-city |
Unpaid probe (census of 2026-09-30)
| Field | Value |
|---|---|
| Probed at | 2026-09-30T23:50:13.581Z |
| HEAD | 402 |
| GET | 402 |
| Verdict | live live: valid 402 to an unpaid GET |
| 402 carried in | header |
| x402Version in the 402 | 2 |
| accepts[0] | {"scheme":"exact","network":"eip155:8453","amount":"10000","payTo":"0xFC24FD34da9e49A0110DCaEe3Ad30eC54175eBB3","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":120,"extra":{"name":"USD Coin","version":"2"}} |
| Live amount equals catalog price | yes |
| Live payTo equals catalog payTo | yes |
| extensions.bazaar in the 402 | yes |
| PAYMENT-REQUIRED header | yes |
| WWW-Authenticate offer | none |
| Content type / server / CORS | application/json / cloudflare / none |
| Latency | 1,890 ms |
| Error | Payment required |
No hourly re-probe has reached this resource yet; the cron covers a rotating slice of 150 per hour.
On-chain facts for the payTo (public address)
| Field | Value |
|---|---|
| Distinct payers | 1 |
| Payments | 1 |
| USDC volume | $0.02 |
| Median payment | $0.02 |
| First / last payment | 2026-09-27 / 2026-09-27 |
| Sampler-shaped share of payments | 100.0% |
| Payers that are not samplers | 0 |
| Source | forensics-2026-09-30 |
| Address | 0xFC24FD34da9e49A0110DCaEe3Ad30eC54175eBB3 |
Declared input and output (extensions.bazaar)
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"query": "now"
}
},
"output": {
"type": "json",
"example": {
"no2": 12,
"pm10": 9,
"ozone": 60,
"pm2_5": 6.1,
"us_aqi": 25,
"category": "good",
"location": "Toronto",
"european_aqi": 20
}
}
}
Try it (unpaid: shows the 402)
curl -si -X GET 'https://data.intel.rallylive.ca/data/air-quality/ho-chi-minh-city' -H 'accept: application/json'
The catalog declares GET. A 402 answer carries the payment requirements in the JSON body and, for x402 v2, base64 in the PAYMENT-REQUIRED header. This page never sends a payment.
Paid checks (x402, USDC on Base)
GET https://bazaar.agentexchange.work/r/6c1963ee6926/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"6c1963ee6926"} places this resource at the top of the report and search pages for 30 days for $1.00, labelled. Unpaid requests answer 402 with the terms. Pricing.
Catalog references: PayAI listing status · this record as JSON · all resources on data.intel.rallylive.ca.