karte.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. 19 snapshots so far.
$11.47
Verified settled volume
2,654 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0060
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 2026-08-12 08:54Z
—
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://karte.halowerk.com/llms.txt",
"name": "restricted_route",
"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://karte.halowerk.com/pricing",
"resource": {
"url": "https://karte.halowerk.com/v1/restricted-route",
"mimeType": "application/json",
"description": "Collects the physical and legal restrictions recorded in OpenStreetMap within a corridor around the straight line between two points, or around a single point, and decides for each one whether it stops the vehicle described in the request. The work is in reading the values."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"to": {
"lat": 48.18,
"lon": 11.62
},
"from": {
"lat": 48.13,
"lon": 11.54
},
"vehicle": {
"hazmat": false,
"height_m": 4,
"weight_t": 18
},
"corridor_km": 1
},
"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",
"properties": {
"to": {
"type": "object",
"required": [
"lat",
"lon"
],
"properties": {
"lat": {
"type": "number",
"maximum": 90,
"minimum": -90
},
"lon": {
"type": "number",
"maximum": 180,
"minimum": -180
}
},
"description": "End of the corridor. Without it, from is treated as a single point.",
"additionalProperties": false
},
"from": {
"type": "object",
"required": [
"lat",
"lon"
],
"properties": {
"lat": {
"type": "number",
"maximum": 90,
"minimum": -90
},
"lon": {
"type": "number",
"maximum": 180,
"minimum": -180
}
},
"description": "Start of the corridor.",
"additionalProperties": false
},
"vehicle": {
"type": "object",
"properties": {
"hazmat": {
"type": "boolean",
"description": "Carrying dangerous goods."
},
"width_m": {
"type": "number",
"maximum": 8,
"minimum": 0.5
},
"height_m": {
"type": "number",
"maximum": 10,
"minimum": 0.5
},
"length_m": {
"type": "number",
"maximum": 40,
"minimum": 1
},
"weight_t": {
"type": "number",
"maximum": 250,
"minimum": 0.1
},
"axleload_t": {
"type": "number",
"maximum": 30,
"minimum": 0.1
}
},
"description": "The vehicle to judge the restrictions against. Anything omitted is not judged.",
"additionalProperties": false
},
"corridor_km": {
"type": "number",
"default": 1,
"maximum": 10,
"minimum": 0.1,
"description": "Half width of the corridor, or the radius around a single point."
}
},
"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": "Collects the physical and legal restrictions recorded in OpenStreetMap within a corridor around the straight line between two points, or around a single point, and decides for each one whether it stops the vehicle described in the request. The work is in reading the values. OpenStreetMap carries a height limit as a bare number, with a comma, with a unit, or in feet and inches, and it also carries none and default, which are statements about the law rather than measurements: none means no limit is posted, default means the statutory limit applies and no figure is recorded. Reading default as zero would close an open road and skipping it would hide it, so unreadable and non-numeric values get their own state and are counted separately from the ones that clear or block. Access tags are treated the same way: a lorry tagged destination or delivery is bound to the purpose of the journey, which this endpoint cannot know and therefore does not decide, while no and private do block. This is not a routing engine and the response repeats that in its own result field: a real road route may avoid restrictions listed here and may meet others that are not, so a clear answer is a statement about what is recorded in a corridor, never clearance to drive. Coverage in OpenStreetMap is uneven, so a missing restriction means nobody mapped it, not that the road is free.",
"inputSchema": {
"type": "object",
"properties": {
"to": {
"type": "object",
"required": [
"lat",
"lon"
],
"properties": {
"lat": {
"type": "number",
"maximum": 90,
"minimum": -90
},
"lon": {
"type": "number",
"maximum": 180,
"minimum": -180
}
},
"description": "End of the corridor. Without it, from is treated as a single point.",
"additionalProperties": false
},
"from": {
"type": "object",
"required": [
"lat",
"lon"
],
"properties": {
"lat": {
"type": "number",
"maximum": 90,
"minimum": -90
},
"lon": {
"type": "number",
"maximum": 180,
"minimum": -180
}
},
"description": "Start of the corridor.",
"additionalProperties": false
},
"vehicle": {
"type": "object",
"properties": {
"hazmat": {
"type": "boolean",
"description": "Carrying dangerous goods."
},
"width_m": {
"type": "number",
"maximum": 8,
"minimum": 0.5
},
"height_m": {
"type": "number",
"maximum": 10,
"minimum": 0.5
},
"length_m": {
"type": "number",
"maximum": 40,
"minimum": 1
},
"weight_t": {
"type": "number",
"maximum": 250,
"minimum": 0.1
},
"axleload_t": {
"type": "number",
"maximum": 30,
"minimum": 0.1
}
},
"description": "The vehicle to judge the restrictions against. Anything omitted is not judged.",
"additionalProperties": false
},
"corridor_km": {
"type": "number",
"default": 1,
"maximum": 10,
"minimum": 0.1,
"description": "Half width of the corridor, or the radius around a single point."
}
},
"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.
0.006USDC≈ $0.006 USD
on Base · exact scheme
Pay 0.006 USDC on Base to 0x2880…C4E5E. The signed payment is good for 5 minutes.
- Paid to
- 0x2880…C4E5E
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 6000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"asset": "USDC",
"version": "2",
"eip712Domain": {
"name": "USD Coin",
"chainId": 8453,
"version": "2",
"verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"network_name": "Base Mainnet",
"assetTransferMethod": "eip3009"
},
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"amount": "6000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"to": {
"lat": 48.18,
"lon": 11.62
},
"from": {
"lat": 48.13,
"lon": 11.54
},
"vehicle": {
"hazmat": false,
"height_m": 4,
"weight_t": 18
},
"corridor_km": 1
},
"type": "http",
"method": "POST",
"bodyType": "json"
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"properties": {
"to": {
"type": "object",
"required": [
"lat",
"lon"
],
"properties": {
"lat": {
"type": "number",
"maximum": 90,
"minimum": -90
},
"lon": {
"type": "number",
"maximum": 180,
"minimum": -180
}
},
"description": "End of the corridor. Without it, from is treated as a single point.",
"additionalProperties": false
},
"from": {
"type": "object",
"required": [
"lat",
"lon"
],
"properties": {
"lat": {
"type": "number",
"maximum": 90,
"minimum": -90
},
"lon": {
"type": "number",
"maximum": 180,
"minimum": -180
}
},
"description": "Start of the corridor.",
"additionalProperties": false
},
"vehicle": {
"type": "object",
"properties": {
"hazmat": {
"type": "boolean",
"description": "Carrying dangerous goods."
},
"width_m": {
"type": "number",
"maximum": 8,
"minimum": 0.5
},
"height_m": {
"type": "number",
"maximum": 10,
"minimum": 0.5
},
"length_m": {
"type": "number",
"maximum": 40,
"minimum": 1
},
"weight_t": {
"type": "number",
"maximum": 250,
"minimum": 0.1
},
"axleload_t": {
"type": "number",
"maximum": 30,
"minimum": 0.1
}
},
"description": "The vehicle to judge the restrictions against. Anything omitted is not judged.",
"additionalProperties": false
},
"corridor_km": {
"type": "number",
"default": 1,
"maximum": 10,
"minimum": 0.1,
"description": "Half width of the corridor, or the radius around a single point."
}
},
"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
- 2026-08-12 08:54Z
- Last indexed by Roundhouse
- 2026-09-11 08:30Z
- Last enriched (probe, favicon, geo)
- 2026-09-21 08:46Z
- 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. 19 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 karte.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=karte.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://karte.halowerk.com/v1/restricted-route, 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.