HALOWERK Atlantic Land
Circular direction of the dominant surface gradient, clockwise from north. The coordinate is validated against the Natural Earth boundary for Netherlands; results outside it are rejected before payment.
OtherLiveeip155:8453Exactvia cdp
LandEuropeCountryNlAspect
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 20 snapshots so far.
$11.47
Verified settled volume
2,654 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0010
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-03 18:29Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5EThe 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.
0.001USDC≈ $0.001 USD
on Base · exact scheme
Pay 0.001 USDC on Base to 0x2880…C4E5E. The signed payment is good for 5 minutes.
- Paid to
- 0x2880…C4E5E
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 1000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"asset": "USDC",
"version": "2",
"eip712Domain": {
"name": "USD Coin",
"chainId": 8453,
"version": "2",
"verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"network_name": "Base Mainnet",
"assetTransferMethod": "eip3009"
},
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"recipient": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"latitude": 52.3676,
"longitude": 4.9041
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"facts": {
"measurements": {
"aspect": {
"name": "Dominant aspect",
"unit": "degree",
"value": 1,
"method": "documented source raster sample",
"metric": "aspect",
"sample_count": 1
}
}
},
"result": "measurement_available",
"status": "success",
"caveats": [
"Preliminary geodata assessment; not a legally binding property, cadastral, planning, environmental or title search.",
"Raster resolution and model uncertainty can be larger than the submitted site geometry.",
"Material decisions require a current verification by the competent national or regional authority."
],
"charged": true,
"payment": {
"settled": true,
"price_usdc": 0.001
},
"service": "nl-aspect",
"sources": [
{
"id": "copernicus-dem-glo30-f",
"url": "https://copernicus-dem-30m.s3.eu-central-1.amazonaws.com/",
"name": "Copernicus DEM GLO-30 Full, Free & Open",
"caveats": [
"Digital surface model: vegetation and structures can raise the measured surface above bare earth.",
"Values over water and source voids may be unavailable."
],
"dataset": "Copernicus DEM GLO-30 Full, Free & Open",
"license": "COP-DEM-GLO-30-F Full, Free & Open licence",
"purpose": "Surface elevation and deterministic terrain derivatives.",
"version": "COP-DEM-GLO-30-F",
"coverage": "Global land surface; requests are restricted to the 30 published European countries.",
"provider": "European Union Copernicus Programme / ESA / DLR / Airbus",
"authority": "European Union Copernicus Programme / ESA / DLR / Airbus",
"data_date": "2015-12-31T23:59:59.000Z",
"freshness": "Pinned COP-DEM-GLO-30-F product.",
"terms_url": "https://dataspace.copernicus.eu/sites/default/files/media/files/2025-06/copernicus_contributing_mission_data_access_v2_cop_dem_licenses.pdf",
"rate_limit": "AWS Open Data endpoint; local per-request timeout and circuit breaker apply.",
"resolution": "30 metres",
"source_url": "https://copernicus-dem-30m.s3.eu-central-1.amazonaws.com/",
"attribution": "© DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved.",
"data_period": "TanDEM-X acquisition period 2011-2015; this is not a current-condition survey.",
"cache_policy": "HTTP byte ranges only; bounded 2 GB derived block cache, no whole-dataset copy.",
"retrieved_at": "2026-09-03T00:00:00.000Z",
"commercial_use": true,
"license_status": "verified",
"redistribution": true,
"update_interval": "Provider product release based.",
"license_verified_at": "2026-09-03",
"commercial_use_allowed": true
}
],
"summary": "Netherlands: Dominant aspect: source-backed screening evidence was calculated successfully.",
"category": "country",
"evidence": {
"aspect": {
"name": "Dominant aspect",
"unit": "degree",
"value": 1,
"method": "documented source raster sample",
"metric": "aspect",
"sample_count": 1
}
},
"geometry": null,
"data_date": "2015-12-31T23:59:59.000Z",
"checked_at": "2026-09-03T00:00:00.000Z",
"confidence": 0.85,
"risk_level": "not_applicable",
"service_id": "eli-0329",
"limitations": [
"Preliminary geodata assessment; not a legally binding property, cadastral, planning, environmental or title search.",
"Raster resolution and model uncertainty can be larger than the submitted site geometry.",
"Material decisions require a current verification by the competent national or regional authority."
],
"generated_at": "2026-09-03T00:00:00.000Z",
"confidence_method": "Conservative minimum source-family baseline plus a bounded sample-count bonus; multi-source results receive a fixed integration penalty.",
"authoritative_status": "preliminary_non_binding",
"recommended_next_steps": [
"Verify material findings with current cadastral, planning and environmental records from the competent authority.",
"Commission a qualified on-site survey where parcel-scale conditions affect the decision."
],
"evidence_classification": "derived_from_open_geodata"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"longitude",
"latitude"
],
"properties": {
"latitude": {
"type": "number",
"maximum": 72.5,
"minimum": 34,
"description": "WGS84 latitude inside the published European coverage."
},
"longitude": {
"type": "number",
"maximum": 40.5,
"minimum": -31.5,
"description": "WGS84 longitude inside the published European coverage."
}
},
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"service_id",
"service",
"category",
"status",
"result",
"summary",
"facts",
"geometry",
"risk_level",
"confidence",
"confidence_method",
"checked_at",
"data_date",
"evidence",
"sources",
"limitations",
"recommended_next_steps",
"evidence_classification",
"authoritative_status",
"generated_at",
"caveats",
"charged",
"payment"
],
"properties": {
"meta": {
"type": "object"
},
"facts": {
"type": "object"
},
"result": {
"type": "string",
"minLength": 1
},
"status": {
"enum": [
"success",
"no_finding",
"warning",
"high_risk",
"not_applicable",
"insufficient_coverage",
"source_temporarily_unavailable"
],
"type": "string"
},
"caveats": {
"type": "array",
"items": {
"type": "string"
}
},
"charged": {
"type": "boolean"
},
"payment": {
"type": "object",
"required": [
"settled",
"price_usdc"
],
"additionalProperties": true
},
"service": {
"type": "string",
"const": "nl-aspect"
},
"sources": {
"type": "array",
"items": {
"type": "object",
"required": [
"authority",
"dataset",
"url",
"license",
"retrieved_at"
],
"properties": {
"url": {
"type": "string"
},
"dataset": {
"type": "string"
},
"license": {
"type": "string"
},
"authority": {
"type": "string"
},
"retrieved_at": {
"type": "string"
}
},
"additionalProperties": true
},
"minItems": 1
},
"summary": {
"type": "string",
"minLength": 20
},
"category": {
"type": "string",
"const": "country"
},
"evidence": {
"type": "object",
"required": [
"aspect"
],
"properties": {
"aspect": {
"type": "object",
"required": [
"metric",
"name",
"unit",
"value",
"sample_count",
"method"
],
"properties": {
"name": {
"type": "string"
},
"unit": {
"type": "string"
},
"value": {
"type": "number"
},
"method": {
"type": "string"
},
"metric": {
"type": "string"
},
"sample_count": {
"type": "integer",
"minimum": 1
}
},
"additionalProperties": true
}
},
"additionalProperties": false
},
"geometry": {
"type": [
"object",
"null"
]
},
"data_date": {
"type": [
"string",
"null"
]
},
"checked_at": {
"type": "string"
},
"confidence": {
"type": "number",
"maximum": 1,
"minimum": 0
},
"risk_level": {
"type": "string"
},
"service_id": {
"type": "string",
"const": "eli-0329"
},
"limitations": {
"type": "array",
"items": {
"type": "string"
},
"minItems": 1
},
"generated_at": {
"type": "string"
},
"confidence_method": {
"type": "string",
"minLength": 20
},
"authoritative_status": {
"type": "string",
"const": "preliminary_non_binding"
},
"recommended_next_steps": {
"type": "array",
"items": {
"type": "string"
},
"minItems": 1
},
"evidence_classification": {
"type": "string",
"const": "derived_from_open_geodata"
}
},
"additionalProperties": false
}
}
}
}
}
},
"payment-identifier": {
"info": {
"required": false
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"required"
],
"properties": {
"id": {
"type": "string",
"pattern": "^[a-zA-Z0-9_-]+$",
"maxLength": 128,
"minLength": 16
},
"required": {
"type": "boolean"
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-03 18:29Z
- Last indexed by Roundhouse
- 2026-09-24 08:10Z
- Last enriched (probe, favicon, geo)
- 2026-09-12 15:45Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 404
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
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 20 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service HALOWERK Atlantic Land 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=HALOWERK%20Atlantic%20Land' 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://atlantikland.halowerk.com/v1/nl-aspect, 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. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.