karte.halowerk.com
Examines the ways and barrier objects around a destination for anything that stops a vehicle getting there. Barriers such as gates, bollards, lift gates and cycle barriers are returned with their position, distance and whether they are locked. Ways carrying access tags are returned with the restriction and who it applies to, and physical limits — maximum height, weight, width and length — are compared against the vehicle dimensions you supply, so the answer is specific rather than a list to…
SearchLiveeip155:8453Exactvia cdp
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 18 snapshots so far.
$11.47
Verified settled volume
2,654 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0050
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 2026-08-11 20:25Z
—
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": "last_mile_access",
"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": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"pricing": "https://karte.halowerk.com/pricing",
"resource": {
"url": "https://karte.halowerk.com/v1/last-mile-access",
"mimeType": "application/json",
"description": "Examines the ways and barrier objects around a destination for anything that stops a vehicle getting there. Barriers such as gates, bollards, lift gates and cycle barriers are returned with their position, distance and whether they are locked. Ways carrying access tags are returned with the restriction and who it applies to, and physical limits — maximum height, weight, width and length — are compared against the vehicle dimensions you supply, so the answer is specific rather than a list to…"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"lat": 52.52,
"lon": 13.405,
"radius_m": 400,
"vehicle_height_m": 3.6,
"vehicle_weight_t": 7.5
},
"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": [
"lat",
"lon"
],
"properties": {
"lat": {
"type": "number",
"maximum": 90,
"minimum": -90
},
"lon": {
"type": "number",
"maximum": 180,
"minimum": -180
},
"radius_m": {
"type": "integer",
"default": 400,
"maximum": 3000,
"minimum": 50,
"description": "How far around the destination to look."
},
"vehicle_width_m": {
"type": "number",
"maximum": 4,
"minimum": 0.5
},
"vehicle_height_m": {
"type": "number",
"maximum": 6,
"minimum": 0.5
},
"vehicle_length_m": {
"type": "number",
"maximum": 25,
"minimum": 1
},
"vehicle_weight_t": {
"type": "number",
"maximum": 60,
"minimum": 0.5
}
},
"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": "0.005",
"description": "Examines the ways and barrier objects around a destination for anything that stops a vehicle getting there. Barriers such as gates, bollards, lift gates and cycle barriers are returned with their position, distance and whether they are locked. Ways carrying access tags are returned with the restriction and who it applies to, and physical limits — maximum height, weight, width and length — are compared against the vehicle dimensions you supply, so the answer is specific rather than a list to read yourself. Surfaces without load-bearing capacity, unpaved tracks and steps in the approach are reported separately, because they stop a heavy vehicle without any tag saying so. The response never states that the approach is clear: an unmapped bollard still stands there, so the wording is always that no restriction is recorded, together with a density figure for how thoroughly the surrounding ways are tagged at all. That figure is what tells you whether an empty result is informative or merely a blank area of the map.",
"inputSchema": {
"type": "object",
"required": [
"lat",
"lon"
],
"properties": {
"lat": {
"type": "number",
"maximum": 90,
"minimum": -90
},
"lon": {
"type": "number",
"maximum": 180,
"minimum": -180
},
"radius_m": {
"type": "integer",
"default": 400,
"maximum": 3000,
"minimum": 50,
"description": "How far around the destination to look."
},
"vehicle_width_m": {
"type": "number",
"maximum": 4,
"minimum": 0.5
},
"vehicle_height_m": {
"type": "number",
"maximum": 6,
"minimum": 0.5
},
"vehicle_length_m": {
"type": "number",
"maximum": 25,
"minimum": 1
},
"vehicle_weight_t": {
"type": "number",
"maximum": 60,
"minimum": 0.5
}
},
"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.
0.005USDC≈ $0.005 USD
on Base · exact scheme
Pay 0.005 USDC on Base to 0x2880…C4E5E. The signed payment is good for 5 minutes.
- Paid to
- 0x2880…C4E5E
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 5000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"asset": "USDC",
"version": "2",
"eip712Domain": {
"name": "USD Coin",
"chainId": 8453,
"version": "2",
"verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"network_name": "Base Mainnet",
"assetTransferMethod": "eip3009"
},
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"lat": 52.52,
"lon": 13.405,
"radius_m": 400,
"vehicle_height_m": 3.6,
"vehicle_weight_t": 7.5
},
"type": "http",
"method": "POST",
"bodyType": "json"
}
},
"schema": {
"type": "object",
"$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": [
"lat",
"lon"
],
"properties": {
"lat": {
"type": "number",
"maximum": 90,
"minimum": -90
},
"lon": {
"type": "number",
"maximum": 180,
"minimum": -180
},
"radius_m": {
"type": "integer",
"default": 400,
"maximum": 3000,
"minimum": 50,
"description": "How far around the destination to look."
},
"vehicle_width_m": {
"type": "number",
"maximum": 4,
"minimum": 0.5
},
"vehicle_height_m": {
"type": "number",
"maximum": 6,
"minimum": 0.5
},
"vehicle_length_m": {
"type": "number",
"maximum": 25,
"minimum": 1
},
"vehicle_weight_t": {
"type": "number",
"maximum": 60,
"minimum": 0.5
}
},
"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 20:25Z
- Last indexed by Roundhouse
- 2026-09-10 20:00Z
- Last enriched (probe, favicon, geo)
- 2026-09-10 05:45Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 400
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. 18 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/last-mile-access, 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.