buero.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.
DataLiveeip155:8453Exactvia cdp
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 27 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 2026-08-20 06:44Z
—
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.
0.004USDC≈ $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": {
"dpo": {
"name": "Anna Berger",
"email": "dsb@nordlicht.example"
},
"activities": [
{
"name": "Personalverwaltung",
"systems": [
"HR-Suite"
],
"purposes": [
"Durchfuehrung des Arbeitsverhaeltnisses",
"Lohnabrechnung"
],
"legal_basis": [
"art6_1_b_contract",
"art6_1_c_legal_obligation"
],
"data_categories": [
"Stammdaten",
"Vertragsdaten",
"Abrechnungsdaten"
],
"security_measures": [
"Rollenbasierte Zugriffsrechte",
"Verschluesselung im Ruhezustand",
"Protokollierung administrativer Zugriffe"
],
"retention_criteria": "Zehn Jahre nach Ende des Arbeitsverhaeltnisses wegen handels- und steuerrechtlicher Aufbewahrungspflichten.",
"recipient_categories": [
"Lohnbuero",
"Finanzamt",
"Sozialversicherungstraeger"
],
"retention_period_days": 3650,
"data_subject_categories": [
"Beschaeftigte",
"Bewerberinnen und Bewerber"
]
},
{
"name": "Newsletter",
"systems": [
"Mailversand"
],
"purposes": [
"Versand des Kundennewsletters"
],
"legal_basis": [
"art6_1_a_consent"
],
"data_categories": [
"Kontaktdaten",
"Einwilligungsnachweis"
],
"security_measures": [
"Double-Opt-in",
"Zugriff nur ueber Zwei-Faktor-Anmeldung"
],
"retention_criteria": "Bis zum Widerruf der Einwilligung, danach Loeschung binnen 30 Tagen.",
"recipient_categories": [
"Versanddienstleister"
],
"data_subject_categories": [
"Newsletter-Abonnenten"
],
"third_country_transfers": [
{
"safeguard": "scc_art46_2_c",
"country_code": "US",
"recipient_category": "Versanddienstleister",
"safeguard_reference": "Auftragsverarbeitungsvertrag 2026-014, Anlage 2"
}
]
}
],
"controller": {
"name": "Nordlicht GmbH",
"email": "datenschutz@nordlicht.example",
"address": "Hafenstrasse 4, 20359 Hamburg"
}
},
"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": [
"controller",
"activities"
],
"properties": {
"dpo": {
"type": "object",
"required": [
"name"
],
"properties": {
"name": {
"type": "string",
"maxLength": 300,
"minLength": 1,
"description": "Legal name of the body."
},
"email": {
"type": "string",
"maxLength": 200,
"description": "Contact mailbox of the body. A functional address, not a person."
},
"phone": {
"type": "string",
"maxLength": 60,
"description": "Contact number of the body."
},
"address": {
"type": "string",
"maxLength": 500,
"description": "Postal address as one line."
}
},
"description": "The data protection officer, where one is appointed. Article 30(1)(a).",
"additionalProperties": false
},
"activities": {
"type": "array",
"items": {
"type": "object",
"required": [
"name",
"purposes"
],
"properties": {
"name": {
"type": "string",
"maxLength": 200,
"minLength": 1,
"description": "Short label of the activity, e.g. \"Payroll\" or \"Applicant management\"."
},
"systems": {
"type": "array",
"items": {
"type": "string",
"maxLength": 200,
"minLength": 1
},
"maxItems": 40,
"description": "The systems the activity runs in. Not required by Article 30; carried through because a record without systems is hard to maintain."
},
"purposes": {
"type": "array",
"items": {
"type": "string",
"maxLength": 500,
"minLength": 1
},
"maxItems": 20,
"minItems": 1,
"description": "Article 30(1)(b). One purpose per entry, in your own words."
},
"processors": {
"type": "array",
"items": {
"type": "string",
"maxLength": 300,
"minLength": 1
},
"maxItems": 40,
"description": "Processors under Article 28. Not required by Article 30(1); carried through unchanged."
},
"legal_basis": {
"type": "array",
"items": {
"enum": [
"art6_1_a_consent",
"art6_1_b_contract",
"art6_1_c_legal_obligation",
"art6_1_d_vital_interests",
"art6_1_e_public_task",
"art6_1_f_legitimate_interests"
],
"type": "string"
},
"maxItems": 6,
"description": "Which of Article 6(1)(a) to (f) you rely on. Your statement — it is recorded, not chosen or checked here."
},
"data_categories": {
"type": "array",
"items": {
"type": "string",
"maxLength": 200,
"minLength": 1
},
"maxItems": 60,
"description": "Article 30(1)(c), second half. Categories, e.g. \"contact data\", \"payroll data\" — never values."
},
"security_measures": {
"type": "array",
"items": {
"type": "string",
"maxLength": 500,
"minLength": 1
},
"maxItems": 40,
"description": "Article 30(1)(g). General description of the technical and organisational measures under Article 32(1)."
},
"retention_criteria": {
"type": "string",
"maxLength": 2000,
"description": "Article 30(1)(f). The criteria for erasure where no fixed period applies, e.g. \"six years after the end of the contract year\"."
},
"special_categories": {
"type": "array",
"items": {
"enum": [
"racial_or_ethnic_origin",
"political_opinions",
"religious_or_philosophical_beliefs",
"trade_union_membership",
"genetic_data",
"biometric_data",
"health_data",
"sex_life_or_orientation"
],
"type": "string"
},
"maxItems": 12,
"description": "Which special categories under Article 9(1) occur, if any."
},
"recipient_categories": {
"type": "array",
"items": {
"type": "string",
"maxLength": 300,
"minLength": 1
},
"maxItems": 40,
"description": "Article 30(1)(d). Categories of recipients, e.g. \"payroll provider\", \"tax authority\"."
},
"retention_period_days": {
"type": "integer",
"maximum": 36525,
"minimum": 0,
"description": "Article 30(1)(f). Erasure period in days, where a fixed one applies. Unit is in the name: days."
},
"special_category_basis": {
"type": "array",
"items": {
"enum": [
"art9_2_a_explicit_consent",
"art9_2_b_employment_law",
"art9_2_c_vital_interests",
"art9_2_f_legal_claims",
"art9_2_g_substantial_public_interest",
"art9_2_h_health_care",
"art9_2_i_public_health",
"art9_2_j_archiving_research"
],
"type": "string"
},
"maxItems": 8,
"description": "Which of Article 9(2) you rely on, where special categories of data are processed."
},
"data_subject_categories": {
"type": "array",
"items": {
"type": "string",
"maxLength": 200,
"minLength": 1
},
"maxItems": 30,
"description": "Article 30(1)(c), first half. Categories, e.g. \"employees\", \"applicants\" — never individuals."
},
"third_country_transfers": {
"type": "array",
"items": {
"type": "object",
"required": [
"country_code"
],
"properties": {
"safeguard": {
"enum": [
"adequacy_decision_art45",
"scc_art46_2_c",
"bcr_art47",
"codes_of_conduct_art46_2_e",
"certification_art46_2_f",
"derogation_art49",
"none_stated"
],
"type": "string",
"description": "The safeguard you rely on under Article 46 or 49. Recorded as stated."
},
"country_code": {
"type": "string",
"maxLength": 2,
"minLength": 2,
"description": "ISO 3166-1 alpha-2, uppercase, e.g. US."
},
"recipient_category": {
"type": "string",
"maxLength": 300,
"description": "Category of recipient in that country."
},
"safeguard_reference": {
"type": "string",
"maxLength": 500,
"description": "Where the safeguard is documented, e.g. a contract reference. Recorded, not retrieved."
}
},
"additionalProperties": false
},
"maxItems": 30,
"description": "Article 30(1)(e). One entry per destination outside your own establishment. Destinations inside the EEA are recorded and marked as such."
},
"legitimate_interests_description": {
"type": "string",
"maxLength": 2000,
"description": "The interests relied on, where art6_1_f_legitimate_interests is named. Recorded as stated; no balancing test is performed here."
}
},
"additionalProperties": false
},
"maxItems": 100,
"minItems": 1,
"description": "One entry per processing activity. This is an inventory of activities, not a log of events."
},
"controller": {
"type": "object",
"required": [
"name"
],
"properties": {
"name": {
"type": "string",
"maxLength": 300,
"minLength": 1,
"description": "Legal name of the body."
},
"email": {
"type": "string",
"maxLength": 200,
"description": "Contact mailbox of the body. A functional address, not a person."
},
"phone": {
"type": "string",
"maxLength": 60,
"description": "Contact number of the body."
},
"address": {
"type": "string",
"maxLength": 500,
"description": "Postal address as one line."
}
},
"description": "The controller — Article 30(1)(a). Required.",
"additionalProperties": false
},
"representative": {
"type": "object",
"required": [
"name"
],
"properties": {
"name": {
"type": "string",
"maxLength": 300,
"minLength": 1,
"description": "Legal name of the body."
},
"email": {
"type": "string",
"maxLength": 200,
"description": "Contact mailbox of the body. A functional address, not a person."
},
"phone": {
"type": "string",
"maxLength": 60,
"description": "Contact number of the body."
},
"address": {
"type": "string",
"maxLength": 500,
"description": "Postal address as one line."
}
},
"description": "The representative under Article 27, where one is appointed. Article 30(1)(a).",
"additionalProperties": false
},
"record_language": {
"enum": [
"de",
"en"
],
"type": "string",
"default": "de",
"description": "Language of the article texts printed beside each letter. Your own wording is never translated."
},
"joint_controllers": {
"type": "array",
"items": {
"type": "object",
"required": [
"name"
],
"properties": {
"name": {
"type": "string",
"maxLength": 300,
"minLength": 1,
"description": "Legal name of the body."
},
"email": {
"type": "string",
"maxLength": 200,
"description": "Contact mailbox of the body. A functional address, not a person."
},
"phone": {
"type": "string",
"maxLength": 60,
"description": "Contact number of the body."
},
"address": {
"type": "string",
"maxLength": 500,
"description": "Postal address as one line."
}
},
"description": "One joint controller.",
"additionalProperties": false
},
"maxItems": 20,
"description": "Joint controllers under Article 26, where there are any. Article 30(1)(a)."
}
},
"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
- 2026-08-20 06:44Z
- Last indexed by Roundhouse
- 2026-09-19 06:40Z
- Last enriched (probe, favicon, geo)
- 2026-09-23 17:15Z
- 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. 27 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 buero.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=buero.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://buero.halowerk.com/v1/processing-record, 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.