natur.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.
MediaLiveeip155:8453Exactvia cdp
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 26 snapshots so far.
$11.50
Verified settled volume
2,672 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 2026-08-20 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.
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://natur.halowerk.com/llms.txt",
"name": "leak_indicator",
"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://natur.halowerk.com/pricing",
"resource": {
"url": "https://natur.halowerk.com/v1/leak-indicator",
"mimeType": "application/json",
"description": "Takes one or more district metered areas, each with a flow series and optionally a pressure series, a metered consumption figure and a service connection count, and returns three independent leak indicators per area plus a ranking across all of them. The first is minimum night flow: the lowest flow inside the night window is taken for every night in the record, the median of those nightly minima is reported, and where a connection count is given the legitimate night consumption is subtracted so…"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"zones": [
{
"zone_id": "DMA-North",
"flow_series": [
{
"flow_m3_h": 19.9,
"timestamp": "2026-08-15T02:00:00Z"
},
{
"flow_m3_h": 72.5,
"timestamp": "2026-08-15T06:00:00Z"
},
{
"flow_m3_h": 96,
"timestamp": "2026-08-15T10:00:00Z"
},
{
"flow_m3_h": 85,
"timestamp": "2026-08-15T14:00:00Z"
},
{
"flow_m3_h": 97.5,
"timestamp": "2026-08-15T18:00:00Z"
},
{
"flow_m3_h": 53,
"timestamp": "2026-08-15T22:00:00Z"
},
{
"flow_m3_h": 20.4,
"timestamp": "2026-08-16T02:00:00Z"
},
{
"flow_m3_h": 74,
"timestamp": "2026-08-16T06:00:00Z"
},
{
"flow_m3_h": 95.2,
"timestamp": "2026-08-16T10:00:00Z"
},
{
"flow_m3_h": 86.4,
"timestamp": "2026-08-16T14:00:00Z"
},
{
"flow_m3_h": 99,
"timestamp": "2026-08-16T18:00:00Z"
},
{
"flow_m3_h": 55.5,
"timestamp": "2026-08-16T22:00:00Z"
},
{
"flow_m3_h": 21,
"timestamp": "2026-08-17T02:00:00Z"
}
],
"pressure_series": [
{
"timestamp": "2026-08-15T02:00:00Z",
"pressure_bar": 4.62
},
{
"timestamp": "2026-08-16T02:00:00Z",
"pressure_bar": 4.48
},
{
"timestamp": "2026-08-17T02:00:00Z",
"pressure_bar": 4.31
}
],
"service_connections": 5600,
"metered_consumption_m3": 2920
}
],
"min_nights": 3,
"utc_offset_minutes": 0
},
"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": [
"zones"
],
"properties": {
"zones": {
"type": "array",
"items": {
"type": "object",
"required": [
"zone_id",
"flow_series"
],
"properties": {
"zone_id": {
"type": "string",
"maxLength": 40,
"minLength": 1,
"description": "Your own identifier. Returned unchanged; also the tie-break in the ranking."
},
"flow_series": {
"type": "array",
"items": {
"type": "object",
"required": [
"timestamp",
"flow_m3_h"
],
"properties": {
"flow_m3_h": {
"type": "number",
"maximum": 100000,
"minimum": 0
},
"timestamp": {
"type": "string",
"description": "ISO 8601 with an explicit time zone."
}
}
},
"maxItems": 4032,
"minItems": 4,
"description": "Inlet flow. Needs a sample inside the night window on at least min_nights nights."
},
"pressure_series": {
"type": "array",
"items": {
"type": "object",
"required": [
"timestamp",
"pressure_bar"
],
"properties": {
"timestamp": {
"type": "string"
},
"pressure_bar": {
"type": "number",
"maximum": 25,
"minimum": 0
}
}
},
"maxItems": 4032,
"minItems": 3,
"description": "Optional. Used for the night pressure trend only."
},
"service_connections": {
"type": "integer",
"maximum": 1000000,
"minimum": 1,
"description": "Optional. Without it the legitimate share of the night flow cannot be separated out."
},
"metered_consumption_m3": {
"type": "number",
"maximum": 10000000,
"minimum": 0,
"description": "Optional. Must cover exactly the window spanned by flow_series. Without it there is no volume balance."
},
"night_use_l_per_connection_h": {
"type": "number",
"maximum": 50,
"minimum": 0,
"description": "Optional per-zone override of the assumed legitimate night use."
}
}
},
"maxItems": 40,
"minItems": 1,
"description": "The areas to assess. Unknown field names inside a zone are named back to you, never ignored."
},
"min_nights": {
"type": "integer",
"default": 2,
"maximum": 30,
"minimum": 1,
"description": "Nights with a night-window sample required before a zone is scored. Below three, no trend."
},
"utc_offset_minutes": {
"type": "integer",
"default": 0,
"maximum": 840,
"minimum": -840,
"description": "Fixed offset used to place the night window. No daylight saving rule is applied."
},
"night_window_end_hour": {
"type": "number",
"default": 4,
"maximum": 24,
"minimum": 0,
"description": "Local time, exclusive."
},
"night_window_start_hour": {
"type": "number",
"default": 2,
"maximum": 24,
"minimum": 0,
"description": "Local time. A window wrapping past midnight is allowed."
},
"night_use_l_per_connection_h": {
"type": "number",
"default": 1.7,
"maximum": 50,
"minimum": 0,
"description": "Assumed legitimate night use per connection. The default is a planning value, not your network."
}
},
"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": "Takes one or more district metered areas, each with a flow series and optionally a pressure series, a metered consumption figure and a service connection count, and returns three independent leak indicators per area plus a ranking across all of them. The first is minimum night flow: the lowest flow inside the night window is taken for every night in the record, the median of those nightly minima is reported, and where a connection count is given the legitimate night consumption is subtracted so that the excess stands on its own. The second is the volume balance: the flow series is integrated over the observation window and the metered consumption subtracted, giving unaccounted volume both absolutely and as a share. The third is pressure decay: the mean night pressure per night and its trend, because a rising night flow together with a falling night pressure is a different situation from a rising night flow at constant pressure. Every indicator is returned with its own value, its normalisation bounds and its weight, and indicators that could not be computed from the submitted fields are listed as unavailable rather than silently replaced by a default, so the score can never look better founded than the input allows. The result is an indicator and not a find: a high minimum night flow can be a burst main, an open zone boundary, night irrigation or a new customer working a night shift, and where the leak lies is not something this computation can know. Nothing is fetched from any third party and nothing is stored; the same body returns the same numbers.",
"inputSchema": {
"type": "object",
"required": [
"zones"
],
"properties": {
"zones": {
"type": "array",
"items": {
"type": "object",
"required": [
"zone_id",
"flow_series"
],
"properties": {
"zone_id": {
"type": "string",
"maxLength": 40,
"minLength": 1,
"description": "Your own identifier. Returned unchanged; also the tie-break in the ranking."
},
"flow_series": {
"type": "array",
"items": {
"type": "object",
"required": [
"timestamp",
"flow_m3_h"
],
"properties": {
"flow_m3_h": {
"type": "number",
"maximum": 100000,
"minimum": 0
},
"timestamp": {
"type": "string",
"description": "ISO 8601 with an explicit time zone."
}
}
},
"maxItems": 4032,
"minItems": 4,
"description": "Inlet flow. Needs a sample inside the night window on at least min_nights nights."
},
"pressure_series": {
"type": "array",
"items": {
"type": "object",
"required": [
"timestamp",
"pressure_bar"
],
"properties": {
"timestamp": {
"type": "string"
},
"pressure_bar": {
"type": "number",
"maximum": 25,
"minimum": 0
}
}
},
"maxItems": 4032,
"minItems": 3,
"description": "Optional. Used for the night pressure trend only."
},
"service_connections": {
"type": "integer",
"maximum": 1000000,
"minimum": 1,
"description": "Optional. Without it the legitimate share of the night flow cannot be separated out."
},
"metered_consumption_m3": {
"type": "number",
"maximum": 10000000,
"minimum": 0,
"description": "Optional. Must cover exactly the window spanned by flow_series. Without it there is no volume balance."
},
"night_use_l_per_connection_h": {
"type": "number",
"maximum": 50,
"minimum": 0,
"description": "Optional per-zone override of the assumed legitimate night use."
}
}
},
"maxItems": 40,
"minItems": 1,
"description": "The areas to assess. Unknown field names inside a zone are named back to you, never ignored."
},
"min_nights": {
"type": "integer",
"default": 2,
"maximum": 30,
"minimum": 1,
"description": "Nights with a night-window sample required before a zone is scored. Below three, no trend."
},
"utc_offset_minutes": {
"type": "integer",
"default": 0,
"maximum": 840,
"minimum": -840,
"description": "Fixed offset used to place the night window. No daylight saving rule is applied."
},
"night_window_end_hour": {
"type": "number",
"default": 4,
"maximum": 24,
"minimum": 0,
"description": "Local time, exclusive."
},
"night_window_start_hour": {
"type": "number",
"default": 2,
"maximum": 24,
"minimum": 0,
"description": "Local time. A window wrapping past midnight is allowed."
},
"night_use_l_per_connection_h": {
"type": "number",
"default": 1.7,
"maximum": 50,
"minimum": 0,
"description": "Assumed legitimate night use per connection. The default is a planning value, not your network."
}
},
"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": {
"zones": [
{
"zone_id": "DMA-North",
"flow_series": [
{
"flow_m3_h": 19.9,
"timestamp": "2026-08-15T02:00:00Z"
},
{
"flow_m3_h": 72.5,
"timestamp": "2026-08-15T06:00:00Z"
},
{
"flow_m3_h": 96,
"timestamp": "2026-08-15T10:00:00Z"
},
{
"flow_m3_h": 85,
"timestamp": "2026-08-15T14:00:00Z"
},
{
"flow_m3_h": 97.5,
"timestamp": "2026-08-15T18:00:00Z"
},
{
"flow_m3_h": 53,
"timestamp": "2026-08-15T22:00:00Z"
},
{
"flow_m3_h": 20.4,
"timestamp": "2026-08-16T02:00:00Z"
},
{
"flow_m3_h": 74,
"timestamp": "2026-08-16T06:00:00Z"
},
{
"flow_m3_h": 95.2,
"timestamp": "2026-08-16T10:00:00Z"
},
{
"flow_m3_h": 86.4,
"timestamp": "2026-08-16T14:00:00Z"
},
{
"flow_m3_h": 99,
"timestamp": "2026-08-16T18:00:00Z"
},
{
"flow_m3_h": 55.5,
"timestamp": "2026-08-16T22:00:00Z"
},
{
"flow_m3_h": 21,
"timestamp": "2026-08-17T02:00:00Z"
}
],
"pressure_series": [
{
"timestamp": "2026-08-15T02:00:00Z",
"pressure_bar": 4.62
},
{
"timestamp": "2026-08-16T02:00:00Z",
"pressure_bar": 4.48
},
{
"timestamp": "2026-08-17T02:00:00Z",
"pressure_bar": 4.31
}
],
"service_connections": 5600,
"metered_consumption_m3": 2920
}
],
"min_nights": 3,
"utc_offset_minutes": 0
},
"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": [
"zones"
],
"properties": {
"zones": {
"type": "array",
"items": {
"type": "object",
"required": [
"zone_id",
"flow_series"
],
"properties": {
"zone_id": {
"type": "string",
"maxLength": 40,
"minLength": 1,
"description": "Your own identifier. Returned unchanged; also the tie-break in the ranking."
},
"flow_series": {
"type": "array",
"items": {
"type": "object",
"required": [
"timestamp",
"flow_m3_h"
],
"properties": {
"flow_m3_h": {
"type": "number",
"maximum": 100000,
"minimum": 0
},
"timestamp": {
"type": "string",
"description": "ISO 8601 with an explicit time zone."
}
}
},
"maxItems": 4032,
"minItems": 4,
"description": "Inlet flow. Needs a sample inside the night window on at least min_nights nights."
},
"pressure_series": {
"type": "array",
"items": {
"type": "object",
"required": [
"timestamp",
"pressure_bar"
],
"properties": {
"timestamp": {
"type": "string"
},
"pressure_bar": {
"type": "number",
"maximum": 25,
"minimum": 0
}
}
},
"maxItems": 4032,
"minItems": 3,
"description": "Optional. Used for the night pressure trend only."
},
"service_connections": {
"type": "integer",
"maximum": 1000000,
"minimum": 1,
"description": "Optional. Without it the legitimate share of the night flow cannot be separated out."
},
"metered_consumption_m3": {
"type": "number",
"maximum": 10000000,
"minimum": 0,
"description": "Optional. Must cover exactly the window spanned by flow_series. Without it there is no volume balance."
},
"night_use_l_per_connection_h": {
"type": "number",
"maximum": 50,
"minimum": 0,
"description": "Optional per-zone override of the assumed legitimate night use."
}
}
},
"maxItems": 40,
"minItems": 1,
"description": "The areas to assess. Unknown field names inside a zone are named back to you, never ignored."
},
"min_nights": {
"type": "integer",
"default": 2,
"maximum": 30,
"minimum": 1,
"description": "Nights with a night-window sample required before a zone is scored. Below three, no trend."
},
"utc_offset_minutes": {
"type": "integer",
"default": 0,
"maximum": 840,
"minimum": -840,
"description": "Fixed offset used to place the night window. No daylight saving rule is applied."
},
"night_window_end_hour": {
"type": "number",
"default": 4,
"maximum": 24,
"minimum": 0,
"description": "Local time, exclusive."
},
"night_window_start_hour": {
"type": "number",
"default": 2,
"maximum": 24,
"minimum": 0,
"description": "Local time. A window wrapping past midnight is allowed."
},
"night_use_l_per_connection_h": {
"type": "number",
"default": 1.7,
"maximum": 50,
"minimum": 0,
"description": "Assumed legitimate night use per connection. The default is a planning value, not your network."
}
},
"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. 26 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 natur.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=natur.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://natur.halowerk.com/v1/leak-indicator, 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.