api.nuasense.com
County cropland extent: How much of each county is cropped, in percent and in square kilometres, plus the full land-cover breakdown behind it. Up to 100 rows per call, $0.10 USDC. Filters: country, county, class, level, source.
DataLiveeip155:8453Exactvia cdp
Settlements · 30d
2
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$0.20
Verified settled volume
2 settlements proven x402 by their on-chain EIP-3009 marker.
$0.100
Listed price
As published in the catalog. Always read the live 402 before paying.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-10-25 04:18Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x64F03f76C814bA8959FADeedc6a2bbEE7E9DC5A3The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.1USDC≈ $0.1 USD
on Base · exact scheme
Pay 0.1 USDC on Base to 0x64F0…DC5A3. The signed payment is good for 1 minute.
- Paid to
- 0x64F0…DC5A3
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 100000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x64F03f76C814bA8959FADeedc6a2bbEE7E9DC5A3",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"limit": 10
}
},
"output": {
"type": "json",
"example": {
"rows": [
{
"time": "2026-09-15T00:00:00Z",
"class": "…",
"value": 0,
"county": "…",
"country": "…",
"area_km2": 0,
"n_px_100m": 0
}
],
"count": 1,
"dataset": "market.cropland_extent",
"attribution": "Cropland extent from Digital Earth Africa (CC BY 4.0); land cover from ESA WorldCover 2021 (CC BY 4.0); national arable area from World Bank / FAOSTAT (CC BY 4.0); contains modified Copernicus Sentinel data; administrative boundaries from UN OCHA COD-AB / geoBoundaries (CC BY-IGO)."
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"end": {
"type": "string",
"description": "end of the time window, same formats as start"
},
"class": {
"type": "string",
"description": "filter on class; up to 10 comma-separated values"
},
"level": {
"type": "string",
"description": "filter on level; up to 10 comma-separated values"
},
"limit": {
"type": "integer",
"maximum": 100,
"minimum": 1,
"description": "rows to return"
},
"order": {
"enum": [
"asc",
"desc"
],
"type": "string"
},
"start": {
"type": "string",
"description": "start of the time window: 2026-01-31, RFC3339 UTC, or relative like -30d"
},
"county": {
"type": "string",
"description": "filter on county; up to 10 comma-separated values"
},
"fields": {
"type": "string",
"description": "comma-separated subset of: value, area_km2, n_px_100m, share_raw, se, n_points, reliable"
},
"source": {
"type": "string",
"description": "filter on source; up to 10 comma-separated values"
},
"country": {
"type": "string",
"description": "filter on country; up to 10 comma-separated values"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-25 04:18Z
- Last indexed by Roundhouse
- 2026-10-26 17:40Z
- Last enriched (probe, favicon, geo)
- 2026-10-25 06:16Z
- x402 version
- 2
- Max timeout
- 60s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service api.nuasense.com and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=api.nuasense.com' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://api.nuasense.com/x402/v1/market/cropland-extent, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.