Site Climate
Estimated heating and cooling degree days by month for a location from NASA temperature normals, in Celsius and Fahrenheit.
OtherLiveeip155:8453Exactvia cdp
Degree-daysHvacHeatingCooling
Calls · 30d
1
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 4 snapshots so far.
$24.31
Verified settled volume
1,175 settlements proven x402 by their on-chain EIP-3009 marker.
$0.020
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 2026-10-20 21:17Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xb531320805C5BED1D46AEaDcF4F008FDF172DBDaThe 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.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
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"resource": "https://site-climate.x402tookit.com/degree-days",
"description": "Estimated heating and cooling degree days by month for a location from NASA temperature normals, in Celsius and Fahrenheit.",
"outputSchema": {
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"output": {
"asOf": "2026-10-11T14:45:36.820Z",
"months": [
{
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"hddC": 649,
"month": "January",
"meanTempC": -2.6
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{
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"hddC": 557,
"month": "February",
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"source": "NASA POWER",
"reasons": [
"Data: NASA Langley Research Center POWER Project (power.larc.nasa.gov), funded through the NASA Earth Science Directorate Applied Science Program.",
"Estimated from monthly mean temperatures x days in the month, so treat them as a lower bound for real daily-based totals.",
"…1 more"
],
"summary": "About 3085 heating and 422 cooling degree-days C a year (5553 HDD and 760 CDD in Fahrenheit) at a 18.3 C base; heating dominates.",
"verdict": "ESTIMATE",
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"dominant": "heating",
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"annualHddF": 5553,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"notChecked": [
"daily temperature swings: degree days from MONTHLY means understate the true totals, especially in shoulder months, because a cold night and a warm afternoon both count in real degree-day sums",
"your building's real balance point and any utility's own degree-day figures",
"…1 more"
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"attribution": "Data: NASA Langley Research Center POWER Project (power.larc.nasa.gov), funded through the NASA Earth Science Directorate Applied Science Program."
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"Estimated from monthly mean temperatures x days in the month, so treat them as a lower bound for real daily-based totals.",
"…1 more"
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"summary": "About 3085 heating and 422 cooling degree-days C a year (5553 HDD and 760 CDD in Fahrenheit) at a 18.3 C base; heating dominates.",
"verdict": "ESTIMATE",
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"annualCddC": 422,
"annualCddF": 760,
"annualHddC": 3085,
"annualHddF": 5553,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"notChecked": [
"daily temperature swings: degree days from MONTHLY means understate the true totals, especially in shoulder months, because a cold night and a warm afternoon both count in real degree-day sums",
"your building's real balance point and any utility's own degree-day figures",
"…1 more"
],
"attribution": "Data: NASA Langley Research Center POWER Project (power.larc.nasa.gov), funded through the NASA Earth Science Directorate Applied Science Program."
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"hddC": 557,
"month": "February",
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"source": "NASA POWER",
"reasons": [
"Data: NASA Langley Research Center POWER Project (power.larc.nasa.gov), funded through the NASA Earth Science Directorate Applied Science Program.",
"Estimated from monthly mean temperatures x days in the month, so treat them as a lower bound for real daily-based totals.",
"…1 more"
],
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"baseTempC": 18.3,
"longitude": -83,
"sourceUrl": "https://power.larc.nasa.gov/",
"annualCddC": 422,
"annualCddF": 760,
"annualHddC": 3085,
"annualHddF": 5553,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"notChecked": [
"daily temperature swings: degree days from MONTHLY means understate the true totals, especially in shoulder months, because a cold night and a warm afternoon both count in real degree-day sums",
"your building's real balance point and any utility's own degree-day figures",
"…1 more"
],
"attribution": "Data: NASA Langley Research Center POWER Project (power.larc.nasa.gov), funded through the NASA Earth Science Directorate Applied Science Program."
}
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"x402Version": 1,
"alsoAvailable": {
"llms": "https://site-climate.x402tookit.com/llms.txt",
"catalog": "https://site-climate.x402tookit.com/catalog",
"message": "Site Climate has 10 pay-per-call endpoints (Solar, wind, rainfall and temperature normals for any coordinates, plus daylength, altitude effects and Koppen class.), from $0.02 a call. See the full menu and send your agents our way.",
"openapi": "https://site-climate.x402tookit.com/openapi.json",
"related": [
{
"url": "https://site-climate.x402tookit.com/koppen-class",
"path": "/koppen-class",
"what": "Koppen-Geiger climate class (such as Cfa or BSk) for a location, computed from its monthl…",
"price": "$0.02"
},
{
"url": "https://site-climate.x402tookit.com/rainfall-pattern",
"path": "/rainfall-pattern",
"what": "Monthly rainfall totals for a location, wettest and driest months, and how seasonal the r…",
"price": "$0.02"
},
{
"url": "https://site-climate.x402tookit.com/solar-resource",
"path": "/solar-resource",
"what": "Monthly sunlight (peak sun hours) at a latitude and longitude, resource class, and option…",
"price": "$0.02"
}
]
}
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.02USDC≈ $0.02 USD
on Base · exact scheme
Pay 0.02 USDC on Base to 0xb531…2DBDa. The signed payment is good for 5 minutes.
- Paid to
- 0xb531…2DBDa
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 20000 smallest units
20000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- DUPiup…eEm8s
- Token contract
- EPjFWd…TDt1v
- Payment window
- 5 minutes
20000units
on Polygon · exact scheme
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0xb531…2DBDa
- Token contract
- 0x3c49…c3359
- Payment window
- 5 minutes
20000units
on Arbitrum · exact scheme
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0xb531…2DBDa
- Token contract
- 0xaf88…e5831
- Payment window
- 5 minutes
The catalog’s raw entry
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{
"bazaar": {
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"queryParams": {
"lat": 40,
"lon": -83,
"baseTempC": 18.3
}
},
"output": {
"type": "json",
"example": {
"asOf": "2026-10-11T14:45:36.820Z",
"months": [
{
"cddC": 0,
"hddC": 649,
"month": "January",
"meanTempC": -2.6
},
{
"cddC": 0,
"hddC": 557,
"month": "February",
"meanTempC": -1.4
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"source": "NASA POWER",
"reasons": [
"Data: NASA Langley Research Center POWER Project (power.larc.nasa.gov), funded through the NASA Earth Science Directorate Applied Science Program.",
"Estimated from monthly mean temperatures x days in the month, so treat them as a lower bound for real daily-based totals.",
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"annualHddF": 5553,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
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"daily temperature swings: degree days from MONTHLY means understate the true totals, especially in shoulder months, because a cold night and a warm afternoon both count in real degree-day sums",
"your building's real balance point and any utility's own degree-day figures",
"…1 more"
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"attribution": "Data: NASA Langley Research Center POWER Project (power.larc.nasa.gov), funded through the NASA Earth Science Directorate Applied Science Program."
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"lat": {
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"lon": {
"type": "number",
"description": "Longitude, -180 to 180"
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"baseTempC": {
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"description": "Balance-point temperature in C, default 18.3 (65 F)"
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"longitude": {
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}
}
}Provenance
- Seen in the source catalog
- 2026-10-20 21:17Z
- Last indexed by Roundhouse
- 2026-10-22 19:30Z
- Last enriched (probe, favicon, geo)
- 2026-10-20 21:45Z
- x402 version
- 2
- Max timeout
- 300s
- 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
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 4 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 Site Climate 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=Site%20Climate' 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://site-climate.x402tookit.com/degree-days, 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.