handel.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.
OtherLiveeip155:8453Exactvia cdp
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 25 snapshots so far.
$11.47
Verified settled volume
2,654 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0040
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 2026-08-18 16:06Z
—
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.
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://handel.halowerk.com/llms.txt",
"name": "sanctions_ofsi",
"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": "4000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"pricing": "https://handel.halowerk.com/pricing",
"resource": {
"url": "https://handel.halowerk.com/v1/sanctions-ofsi",
"mimeType": "application/json",
"description": "Checks a name against the UK Sanctions List maintained by the Foreign, Commonwealth and Development Office. Returns each hit with the UK designation ID, the legacy OFSI group ID, the UN reference where the designation mirrors a UN listing, the designation type (individual, entity, ship), the regime regulations under which it was made, whether the designation originates from the UK or the UN, the specific measures imposed (asset freeze, travel ban, trust services, director disqualification and…"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"name": "Ramzan Kadyrov",
"limit": 20,
"match": "all_words",
"origin": "any",
"regime": "Russia",
"designation_type": "individual"
},
"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": [
"name"
],
"properties": {
"name": {
"type": "string",
"maxLength": 200,
"minLength": 2,
"description": "Person, company or ship name to screen, e.g. \"Ramzan Kadyrov\" or \"Example Trading LLC\"."
},
"limit": {
"type": "integer",
"default": 20,
"maximum": 50,
"minimum": 1
},
"match": {
"enum": [
"exact",
"all_words",
"partial"
],
"type": "string",
"default": "all_words",
"description": "exact = normalised string equality. all_words = every significant word of the query appears in the listed name. partial = at least one significant word, widest and noisiest."
},
"origin": {
"enum": [
"any",
"uk",
"un"
],
"type": "string",
"default": "any",
"description": "Restrict by where the designation comes from. uk = UK-originated, un = mirrors a UN listing. Designations marked \"UK|UN\" match both."
},
"regime": {
"type": "string",
"maxLength": 80,
"description": "Restrict to designations whose regime name contains this text, e.g. \"Russia\", \"Iran\", \"Global Human Rights\"."
},
"designation_type": {
"enum": [
"any",
"individual",
"entity",
"ship"
],
"type": "string",
"default": "any",
"description": "Restrict to one UK designation type."
}
},
"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": "0.004",
"description": "Checks a name against the UK Sanctions List maintained by the Foreign, Commonwealth and Development Office. Returns each hit with the UK designation ID, the legacy OFSI group ID, the UN reference where the designation mirrors a UN listing, the designation type (individual, entity, ship), the regime regulations under which it was made, whether the designation originates from the UK or the UN, the specific measures imposed (asset freeze, travel ban, trust services, director disqualification and others), the designation and last-updated dates, the UK statement of reasons, plus published aliases, nationalities, positions, dates and places of birth, addresses, documents, corporate and ship particulars where the list carries them. Every hit states how it was found: exact, all_words or partial. IMPORTANT ON SOURCE: the OFSI Consolidated List of Financial Sanctions Targets closed on 28 January 2026 and is no longer updated; the UK Sanctions List is now the single authoritative source, and it is what this endpoint carries. The legacy OFSI group ID is returned so existing references still resolve. LIMITS, and they are not incidental: this covers the UK list only — not the EU consolidated list, not OFAC/SDN, and not the UN list as a separate source. It does NOT apply the ownership and control test, so a company owned or controlled by a designated person is caught by UK law but is not on the list and is not surfaced here. Non-Latin-script spellings are stored and returned but are NOT matchable, and there is no phonetic or transliteration matching beyond the aliases the FCDO publishes, so a differently romanised name can be missed. This endpoint does not cover UK trade, transport or immigration sanctions beyond what the designation record itself states. A result with no hit is NOT clearance and is never labelled as such. This is a first-pass research aid, not a compliance decision, and not legal advice.",
"inputSchema": {
"type": "object",
"required": [
"name"
],
"properties": {
"name": {
"type": "string",
"maxLength": 200,
"minLength": 2,
"description": "Person, company or ship name to screen, e.g. \"Ramzan Kadyrov\" or \"Example Trading LLC\"."
},
"limit": {
"type": "integer",
"default": 20,
"maximum": 50,
"minimum": 1
},
"match": {
"enum": [
"exact",
"all_words",
"partial"
],
"type": "string",
"default": "all_words",
"description": "exact = normalised string equality. all_words = every significant word of the query appears in the listed name. partial = at least one significant word, widest and noisiest."
},
"origin": {
"enum": [
"any",
"uk",
"un"
],
"type": "string",
"default": "any",
"description": "Restrict by where the designation comes from. uk = UK-originated, un = mirrors a UN listing. Designations marked \"UK|UN\" match both."
},
"regime": {
"type": "string",
"maxLength": 80,
"description": "Restrict to designations whose regime name contains this text, e.g. \"Russia\", \"Iran\", \"Global Human Rights\"."
},
"designation_type": {
"enum": [
"any",
"individual",
"entity",
"ship"
],
"type": "string",
"default": "any",
"description": "Restrict to one UK designation type."
}
},
"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.
0.004USDC≈ $0.004 USD
on Base · exact scheme
Pay 0.004 USDC on Base to 0x2880…C4E5E. The signed payment is good for 5 minutes.
- Paid to
- 0x2880…C4E5E
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 4000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"asset": "USDC",
"version": "2",
"eip712Domain": {
"name": "USD Coin",
"chainId": 8453,
"version": "2",
"verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"network_name": "Base Mainnet",
"assetTransferMethod": "eip3009"
},
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"amount": "4000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"name": "Ramzan Kadyrov",
"limit": 20,
"match": "all_words",
"origin": "any",
"regime": "Russia",
"designation_type": "individual"
},
"type": "http",
"method": "POST",
"bodyType": "json"
}
},
"schema": {
"type": "object",
"$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": [
"name"
],
"properties": {
"name": {
"type": "string",
"maxLength": 200,
"minLength": 2,
"description": "Person, company or ship name to screen, e.g. \"Ramzan Kadyrov\" or \"Example Trading LLC\"."
},
"limit": {
"type": "integer",
"default": 20,
"maximum": 50,
"minimum": 1
},
"match": {
"enum": [
"exact",
"all_words",
"partial"
],
"type": "string",
"default": "all_words",
"description": "exact = normalised string equality. all_words = every significant word of the query appears in the listed name. partial = at least one significant word, widest and noisiest."
},
"origin": {
"enum": [
"any",
"uk",
"un"
],
"type": "string",
"default": "any",
"description": "Restrict by where the designation comes from. uk = UK-originated, un = mirrors a UN listing. Designations marked \"UK|UN\" match both."
},
"regime": {
"type": "string",
"maxLength": 80,
"description": "Restrict to designations whose regime name contains this text, e.g. \"Russia\", \"Iran\", \"Global Human Rights\"."
},
"designation_type": {
"enum": [
"any",
"individual",
"entity",
"ship"
],
"type": "string",
"default": "any",
"description": "Restrict to one UK designation type."
}
},
"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
- 2026-08-18 16:06Z
- Last indexed by Roundhouse
- 2026-09-17 16:10Z
- Last enriched (probe, favicon, geo)
- 2026-09-23 04:15Z
- 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. 25 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 handel.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=handel.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://handel.halowerk.com/v1/sanctions-ofsi, 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.