stat.halowerk.com
HALOWERK provides paid endpoints that AI agents call and pay for per request via x402 on Base. No account, no API key, no signup.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
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.
{
"docs": "https://stat.halowerk.com/llms.txt",
"name": "country_macro",
"error": "payment_required",
"accepts": [
{
"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": "6000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"pricing": "https://stat.halowerk.com/pricing",
"resource": {
"url": "https://stat.halowerk.com/v1/country-macro",
"mimeType": "application/json",
"description": "Assembles a macroeconomic profile of a country from World Bank indicators, and refuses to present it as a snapshot of one year. Official statistics arrive on different schedules: real GDP growth may be current to last year while a labour force figure lags by three, and a profile that omits this silently blends half a decade into what looks like a single reading."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"years": 12,
"country": "DE"
},
"type": "http",
"method": "POST",
"bodyType": "json"
}
},
"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": [
"country"
],
"properties": {
"years": {
"type": "integer",
"default": 12,
"maximum": 40,
"minimum": 3
},
"country": {
"type": "string",
"maxLength": 3,
"minLength": 2,
"description": "ISO country code, e.g. DE or DEU."
},
"indicators": {
"type": "array",
"items": {
"enum": [
"gdp_growth_pct",
"gdp_per_capita_usd",
"inflation_pct",
"population",
"population_growth_pct",
"unemployment_pct",
"exports_pct_gdp",
"imports_pct_gdp",
"gov_debt_pct_gdp",
"current_account_pct_gdp"
],
"type": "string"
},
"maxItems": 10,
"description": "Which indicators. All by default."
}
},
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
}
}
}
}
},
"price_usdc": "0.006",
"description": "Assembles a macroeconomic profile of a country from World Bank indicators, and refuses to present it as a snapshot of one year. Official statistics arrive on different schedules: real GDP growth may be current to last year while a labour force figure lags by three, and a profile that omits this silently blends half a decade into what looks like a single reading. Every indicator therefore carries its own period, its age in years and the value, and the response states which figure is the oldest and how old the set is overall. Each indicator comes with its full history over the requested window so a trend is visible rather than a point, along with the change against the previous period and against five periods back. Indicators the source does not carry for the country are returned as unavailable with the indicator code, never as zero — a missing debt ratio and a debt ratio of zero are not the same statement, and small states in particular are missing from many series entirely.",
"inputSchema": {
"type": "object",
"required": [
"country"
],
"properties": {
"years": {
"type": "integer",
"default": 12,
"maximum": 40,
"minimum": 3
},
"country": {
"type": "string",
"maxLength": 3,
"minLength": 2,
"description": "ISO country code, e.g. DE or DEU."
},
"indicators": {
"type": "array",
"items": {
"enum": [
"gdp_growth_pct",
"gdp_per_capita_usd",
"inflation_pct",
"population",
"population_growth_pct",
"unemployment_pct",
"exports_pct_gdp",
"imports_pct_gdp",
"gov_debt_pct_gdp",
"current_account_pct_gdp"
],
"type": "string"
},
"maxItems": 10,
"description": "Which indicators. All by default."
}
},
"additionalProperties": false
},
"price_model": "per_call",
"x402Version": 2,
"instructions": "Sign the accepted terms with an x402 client and repeat the request with the payment header.",
"payment_header": "PAYMENT-SIGNATURE",
"capability_request": {
"url": "https://bedarf.halowerk.com/capabilities/request",
"cost": "free",
"method": "POST",
"description": "Missing a capability, or does the scope not fit? Report the need here - no payment required. Similar reports are bundled; the response returns an id you can check back on.",
"body_example": {
"max_price": 0.01,
"description": "what exactly is needed",
"requested_capability": "short label"
}
}
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
Pay 0.006 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
- 6000 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": "6000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"years": 12,
"country": "DE"
},
"type": "http",
"method": "POST",
"bodyType": "json"
}
},
"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": [
"country"
],
"properties": {
"years": {
"type": "integer",
"default": 12,
"maximum": 40,
"minimum": 3
},
"country": {
"type": "string",
"maxLength": 3,
"minLength": 2,
"description": "ISO country code, e.g. DE or DEU."
},
"indicators": {
"type": "array",
"items": {
"enum": [
"gdp_growth_pct",
"gdp_per_capita_usd",
"inflation_pct",
"population",
"population_growth_pct",
"unemployment_pct",
"exports_pct_gdp",
"imports_pct_gdp",
"gov_debt_pct_gdp",
"current_account_pct_gdp"
],
"type": "string"
},
"maxItems": 10,
"description": "Which indicators. All by default."
}
},
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-08-11 20:30Z
- Last indexed by Roundhouse
- 2026-09-10 20:30Z
- Last enriched (probe, favicon, geo)
- 2026-09-21 06:15Z
- 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. 17 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 stat.halowerk.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=stat.halowerk.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://stat.halowerk.com/v1/country-macro, 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.