api.duoleads.com
No description published for this endpoint.
OtherLiveeip155:8453Exactvia facilitator:thirdweb
Calls · 30d
2→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far.
$10.17
Verified settled volume
270 settlements proven x402 by their on-chain EIP-3009 marker.
$0.050
Listed price
As published in the catalog. Always read the live 402 before paying.
—
Calls · 30d
Upstream's own call count for this endpoint, not ours.
—
Unique payers · 30d
Never called
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xCD673f7e1daD254347AEab6be0DEFe8b9C6b3A39The 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.
{
"error": "Payment required",
"terms": "https://api.duoleads.com/terms",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xCD673f7e1daD254347AEab6be0DEFe8b9C6b3A39",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://api.duoleads.com/v1/ref/nuts",
"tags": [
"deterministic",
"no-api-key",
"ref",
"eu",
"statistics"
],
"mimeType": "application/json",
"description": "Look up a NUTS statistical region of the European Union: resolve a NUTS code to its name, country and level, walk up to its parents or down to its children, or search regions by name. Covers all four levels (country, major region, basic region, small region) for the 27 member states and 12 further reporting countries, from the NUTS 2024 classification. Returns the Latin-script and local-language names plus the urbanisation, coastal and mountain typologies.",
"serviceName": "Duo Data Utilities"
},
"disclaimer": "Factual output of a deterministic computation over public data. Provided as is, with no warranty of accuracy, completeness or availability. Not investment, financial, legal, tax, medical or any other professional advice, and not a recommendation. Verify before relying on it. Terms: https://api.duoleads.com/terms",
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"code": "NL32B",
"include": "parents,typology"
}
},
"output": {
"type": "json",
"example": {
"ok": true,
"data": {
"code": "NL32B",
"found": true,
"level": 3,
"country": "NL",
"parents": [
{
"code": "NL",
"level": 0,
"name_latn": "Nederland"
},
{
"code": "NL3",
"level": 1,
"name_latn": "West-Nederland"
},
{
"code": "NL32",
"level": 2,
"name_latn": "Noord-Holland"
}
],
"typology": {
"urban": "1",
"coastal": "1",
"mountain": "4",
"urban_label": "predominantly urban",
"coastal_label": "coastal",
"mountain_label": "non-mountain region"
},
"name_latn": "Groot-Amsterdam",
"name_local": "Groot-Amsterdam",
"canonical_country": "NL"
},
"meta": {
"sources": [
{
"id": "eurostat-nuts",
"licence": "CC BY 4.0",
"version": "NUTS 2024",
"published": "2026-09-28",
"attribution": "© European Union, Eurostat/GISCO"
}
],
"price_usd": "0.05",
"disclaimer": "Factual output of a deterministic computation over public data. Provided as is, with no warranty of accuracy, completeness or availability. Not investment, financial, legal, tax, medical or any other professional advice, and not a recommendation. Verify before relying on it. Terms: https://api.duoleads.com/terms",
"request_id": "01K6B7Q4ZC8H3F2M9WXR5TYN0D",
"computed_at": "2026-09-28T12:00:00.000Z",
"deterministic": true
},
"route": "/v1/ref/nuts",
"version": "1.0.0"
}
}
},
"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",
"required": [],
"properties": {
"code": {
"type": "string",
"pattern": "^[A-Za-z]{2}[0-9A-Za-z]{0,3}$",
"maxLength": 16,
"description": "NUTS code, 2-5 characters, case-insensitive (level-3 codes may contain letters, e.g. NL32B). A GR or GB prefix is accepted for EL or UK."
},
"name": {
"type": "string",
"maxLength": 128,
"description": "Substring search on region names, case- and accent-insensitive. Up to 25 matches."
},
"level": {
"type": "string",
"pattern": "^[+-]?\\d+$",
"maxLength": 64,
"description": "Restrict a name search to one level, 0-3."
},
"country": {
"type": "string",
"maxLength": 16,
"description": "ISO 3166-1 alpha-2 country filter (UK/GB and EL/GR both accepted)."
},
"include": {
"type": "string",
"default": "parents,typology",
"maxLength": 64,
"description": "Comma-separated: parents, children, typology. Default parents,typology."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"ok",
"route",
"version",
"data",
"meta"
],
"properties": {
"ok": {
"const": true
},
"data": {
"type": "object",
"required": [
"found"
],
"properties": {
"code": {
"type": "string"
},
"found": {
"type": "boolean"
},
"level": {
"type": "integer"
},
"country": {
"type": "string"
},
"matches": {
"type": "array",
"items": {
"type": "object",
"required": [
"code",
"level",
"country",
"name_latn",
"name_local"
],
"properties": {
"code": {
"type": "string"
},
"level": {
"type": "integer"
},
"country": {
"type": "string"
},
"name_latn": {
"type": "string"
},
"name_local": {
"type": "string"
}
}
}
},
"parents": {
"type": "array",
"items": {
"type": "object",
"required": [
"code",
"level",
"name_latn"
],
"properties": {
"code": {
"type": "string"
},
"level": {
"type": "integer"
},
"name_latn": {
"type": "string"
}
}
}
},
"children": {
"type": "array",
"items": {
"type": "object",
"required": [
"code",
"level",
"name_latn"
],
"properties": {
"code": {
"type": "string"
},
"level": {
"type": "integer"
},
"name_latn": {
"type": "string"
}
}
}
},
"typology": {
"type": "object",
"required": [
"urban",
"urban_label",
"coastal",
"coastal_label",
"mountain",
"mountain_label"
],
"properties": {
"urban": {
"type": [
"string",
"null"
]
},
"coastal": {
"type": [
"string",
"null"
]
},
"mountain": {
"type": [
"string",
"null"
]
},
"urban_label": {
"type": [
"string",
"null"
]
},
"coastal_label": {
"type": [
"string",
"null"
]
},
"mountain_label": {
"type": [
"string",
"null"
]
}
}
},
"name_latn": {
"type": "string"
},
"input_code": {
"type": "string"
},
"name_local": {
"type": "string"
},
"total_matches": {
"type": "integer"
},
"canonical_country": {
"type": "string"
}
}
},
"meta": {
"type": "object",
"required": [
"request_id",
"computed_at",
"price_usd",
"deterministic",
"disclaimer"
],
"properties": {
"sources": {
"type": "array",
"items": {
"type": "object",
"required": [
"id",
"version",
"published"
]
}
},
"price_usd": {
"type": "string"
},
"disclaimer": {
"type": "string"
},
"request_id": {
"type": "string"
},
"computed_at": {
"type": "string",
"description": "RFC 3339 UTC with milliseconds"
},
"deterministic": {
"type": "boolean"
}
}
},
"route": {
"const": "/v1/ref/nuts"
},
"version": {
"type": "string"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.05USDC≈ $0.05 USD
on Base · exact scheme
Pay 0.05 USDC on Base to 0xCD67…b3A39. The signed payment is good for 2 minutes.
- Paid to
- 0xCD67…b3A39
- USD Coin contract
- 0x8335…02913
- Payment window
- 2 minutes
- As published
- 50000 smallest units
- Returns
- application/json
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xCD673f7e1daD254347AEab6be0DEFe8b9C6b3A39",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.duoleads.com/v1/ref/nuts",
"description": "",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 120
}
]Provenance
- Seen in the source catalog
- 2026-10-01 20:53Z
- Last indexed by Roundhouse
- 2026-10-26 05:46Z
- Last enriched (probe, favicon, geo)
- 2026-10-01 04:15Z
- x402 version
- 1
- Max timeout
- 120s
- 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. 32 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 api.duoleads.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.duoleads.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.duoleads.com/v1/ref/nuts, 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.