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. 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.
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": "return_disposition",
"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/return-disposition",
"mimeType": "application/json",
"description": "Takes a list of returns with the figures your own systems already hold and returns one decision per return, with the arithmetic that produced it. Four routes are valued: reselling as is, at the resale value weighted by the probability that it actually sells and less the restocking cost; repairing and reselling, at the refurbished value weighted by the repair success probability plus the salvage value on the failure branch, less the repair cost, which is incurred either way; recovering value…"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"condition": "like_new",
"return_id": "R-1001",
"repair_cost": 35,
"resale_value": 189,
"salvage_value": 12,
"resale_probability": 0.95,
"refurb_resale_value": 199,
"repair_success_probability": 0.9
},
{
"condition": "defective",
"return_id": "R-1002",
"repair_cost": 60,
"resale_value": 20,
"salvage_value": 18,
"resale_probability": 0.4,
"refurb_resale_value": 149,
"repair_success_probability": 0.7
},
{
"condition": "damaged",
"return_id": "R-1003",
"repair_cost": 55,
"resale_value": 9,
"salvage_value": 6,
"resale_probability": 0.3,
"refurb_resale_value": 40,
"repair_success_probability": 0.5
}
],
"currency": "EUR",
"defaults": {
"disposal_cost": 1.5,
"inspection_cost": 4.5,
"restocking_cost": 2,
"inbound_freight_cost": 3.9
},
"decision_margin_pct": 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": [
"items"
],
"properties": {
"items": {
"type": "array",
"items": {
"type": "object",
"required": [
"return_id"
],
"properties": {
"condition": {
"enum": [
"new",
"like_new",
"used",
"damaged",
"defective",
"unknown"
],
"type": "string",
"description": "Condition as your inspection recorded it. Passed through unchanged; it does not change the arithmetic."
},
"return_id": {
"type": "string",
"maxLength": 64,
"minLength": 1,
"description": "Your identifier for this return. Must be unique within the request."
},
"repair_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Cost of the repair attempt. Incurred whether or not the repair succeeds."
},
"resale_value": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Expected proceeds from selling the item as it is."
},
"disposal_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Cost of disposing of the item. Scrapping is a cost, not proceeds."
},
"salvage_value": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Proceeds from parts recovery or material recycling."
},
"inspection_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Cost of inspecting this return. Incurred on every route and therefore does not change the ranking, only the level."
},
"restocking_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Cost of putting the item back into stock. Only charged to the as-is resale route."
},
"resale_probability": {
"type": "number",
"default": 1,
"maximum": 1,
"minimum": 0,
"description": "Probability that the as-is resale actually happens within your planning window."
},
"refurb_resale_value": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Expected proceeds after a successful repair."
},
"inbound_freight_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Freight already spent getting the item back. Incurred on every route."
},
"repair_success_probability": {
"type": "number",
"maximum": 1,
"minimum": 0,
"description": "Probability that the repair succeeds. A failed repair falls back to salvage_value."
}
},
"additionalProperties": false
},
"maxItems": 500,
"minItems": 1,
"description": "The returns to decide on. Every amount is in the currency named at document level."
},
"currency": {
"type": "string",
"default": "EUR",
"maxLength": 3,
"minLength": 3,
"description": "ISO 4217 code for every amount in this request. Not converted, only carried through."
},
"defaults": {
"type": "object",
"properties": {
"repair_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0
},
"disposal_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0
},
"inspection_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0
},
"restocking_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0
},
"resale_probability": {
"type": "number",
"maximum": 1,
"minimum": 0
},
"inbound_freight_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0
},
"repair_success_probability": {
"type": "number",
"maximum": 1,
"minimum": 0
}
},
"description": "Values that apply to every item that does not carry its own. An item value always wins.",
"additionalProperties": false
},
"decision_margin_pct": {
"type": "number",
"default": 5,
"maximum": 100,
"minimum": 0,
"description": "How far ahead the best route must be before it counts as a decision. Inside this margin the result is reported as ambiguous instead of asserting a winner."
}
},
"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": "Takes a list of returns with the figures your own systems already hold and returns one decision per return, with the arithmetic that produced it. Four routes are valued: reselling as is, at the resale value weighted by the probability that it actually sells and less the restocking cost; repairing and reselling, at the refurbished value weighted by the repair success probability plus the salvage value on the failure branch, less the repair cost, which is incurred either way; recovering value through parts or material; and scrapping, which is a cost and never proceeds. Inspection and inbound freight are charged to every route because they are incurred whatever you decide, so they change the level but never the ranking, and both figures are reported separately for exactly that reason. A route whose inputs are missing is reported as not evaluable together with the field names it needs, never quietly valued at zero, and an omitted cost that is treated as zero is listed per item so no decision rests on a silent assumption. Where the best route is ahead of the runner-up by less than decision_margin_pct the result is marked ambiguous and no winner is asserted, because a decision inside the noise of your own cost estimates is not a decision. For the repair route the break-even repair cost is reported: the amount at which repairing stops being the better choice. Amounts are in the currency you name and are never converted. This is arithmetic on your figures, not a valuation service: it does not know what the item is worth, it does not look up market prices, it stores nothing, and it does not run your returns process.",
"inputSchema": {
"type": "object",
"required": [
"items"
],
"properties": {
"items": {
"type": "array",
"items": {
"type": "object",
"required": [
"return_id"
],
"properties": {
"condition": {
"enum": [
"new",
"like_new",
"used",
"damaged",
"defective",
"unknown"
],
"type": "string",
"description": "Condition as your inspection recorded it. Passed through unchanged; it does not change the arithmetic."
},
"return_id": {
"type": "string",
"maxLength": 64,
"minLength": 1,
"description": "Your identifier for this return. Must be unique within the request."
},
"repair_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Cost of the repair attempt. Incurred whether or not the repair succeeds."
},
"resale_value": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Expected proceeds from selling the item as it is."
},
"disposal_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Cost of disposing of the item. Scrapping is a cost, not proceeds."
},
"salvage_value": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Proceeds from parts recovery or material recycling."
},
"inspection_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Cost of inspecting this return. Incurred on every route and therefore does not change the ranking, only the level."
},
"restocking_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Cost of putting the item back into stock. Only charged to the as-is resale route."
},
"resale_probability": {
"type": "number",
"default": 1,
"maximum": 1,
"minimum": 0,
"description": "Probability that the as-is resale actually happens within your planning window."
},
"refurb_resale_value": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Expected proceeds after a successful repair."
},
"inbound_freight_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Freight already spent getting the item back. Incurred on every route."
},
"repair_success_probability": {
"type": "number",
"maximum": 1,
"minimum": 0,
"description": "Probability that the repair succeeds. A failed repair falls back to salvage_value."
}
},
"additionalProperties": false
},
"maxItems": 500,
"minItems": 1,
"description": "The returns to decide on. Every amount is in the currency named at document level."
},
"currency": {
"type": "string",
"default": "EUR",
"maxLength": 3,
"minLength": 3,
"description": "ISO 4217 code for every amount in this request. Not converted, only carried through."
},
"defaults": {
"type": "object",
"properties": {
"repair_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0
},
"disposal_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0
},
"inspection_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0
},
"restocking_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0
},
"resale_probability": {
"type": "number",
"maximum": 1,
"minimum": 0
},
"inbound_freight_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0
},
"repair_success_probability": {
"type": "number",
"maximum": 1,
"minimum": 0
}
},
"description": "Values that apply to every item that does not carry its own. An item value always wins.",
"additionalProperties": false
},
"decision_margin_pct": {
"type": "number",
"default": 5,
"maximum": 100,
"minimum": 0,
"description": "How far ahead the best route must be before it counts as a decision. Inside this margin the result is reported as ambiguous instead of asserting a winner."
}
},
"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≈ $0.004 USD
on Base · exact scheme
Pay 0.004 USDC on Base to 0x2880…C4E5E. The signed payment is good for 5 minutes.
- Paid to
- 0x2880…C4E5E
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 4000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"asset": "USDC",
"version": "2",
"eip712Domain": {
"name": "USD Coin",
"chainId": 8453,
"version": "2",
"verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"network_name": "Base Mainnet",
"assetTransferMethod": "eip3009"
},
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"amount": "4000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"condition": "like_new",
"return_id": "R-1001",
"repair_cost": 35,
"resale_value": 189,
"salvage_value": 12,
"resale_probability": 0.95,
"refurb_resale_value": 199,
"repair_success_probability": 0.9
},
{
"condition": "defective",
"return_id": "R-1002",
"repair_cost": 60,
"resale_value": 20,
"salvage_value": 18,
"resale_probability": 0.4,
"refurb_resale_value": 149,
"repair_success_probability": 0.7
},
{
"condition": "damaged",
"return_id": "R-1003",
"repair_cost": 55,
"resale_value": 9,
"salvage_value": 6,
"resale_probability": 0.3,
"refurb_resale_value": 40,
"repair_success_probability": 0.5
}
],
"currency": "EUR",
"defaults": {
"disposal_cost": 1.5,
"inspection_cost": 4.5,
"restocking_cost": 2,
"inbound_freight_cost": 3.9
},
"decision_margin_pct": 5
},
"type": "http",
"method": "POST",
"bodyType": "json"
}
},
"schema": {
"type": "object",
"$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": [
"items"
],
"properties": {
"items": {
"type": "array",
"items": {
"type": "object",
"required": [
"return_id"
],
"properties": {
"condition": {
"enum": [
"new",
"like_new",
"used",
"damaged",
"defective",
"unknown"
],
"type": "string",
"description": "Condition as your inspection recorded it. Passed through unchanged; it does not change the arithmetic."
},
"return_id": {
"type": "string",
"maxLength": 64,
"minLength": 1,
"description": "Your identifier for this return. Must be unique within the request."
},
"repair_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Cost of the repair attempt. Incurred whether or not the repair succeeds."
},
"resale_value": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Expected proceeds from selling the item as it is."
},
"disposal_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Cost of disposing of the item. Scrapping is a cost, not proceeds."
},
"salvage_value": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Proceeds from parts recovery or material recycling."
},
"inspection_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Cost of inspecting this return. Incurred on every route and therefore does not change the ranking, only the level."
},
"restocking_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Cost of putting the item back into stock. Only charged to the as-is resale route."
},
"resale_probability": {
"type": "number",
"default": 1,
"maximum": 1,
"minimum": 0,
"description": "Probability that the as-is resale actually happens within your planning window."
},
"refurb_resale_value": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Expected proceeds after a successful repair."
},
"inbound_freight_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0,
"description": "Freight already spent getting the item back. Incurred on every route."
},
"repair_success_probability": {
"type": "number",
"maximum": 1,
"minimum": 0,
"description": "Probability that the repair succeeds. A failed repair falls back to salvage_value."
}
},
"additionalProperties": false
},
"maxItems": 500,
"minItems": 1,
"description": "The returns to decide on. Every amount is in the currency named at document level."
},
"currency": {
"type": "string",
"default": "EUR",
"maxLength": 3,
"minLength": 3,
"description": "ISO 4217 code for every amount in this request. Not converted, only carried through."
},
"defaults": {
"type": "object",
"properties": {
"repair_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0
},
"disposal_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0
},
"inspection_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0
},
"restocking_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0
},
"resale_probability": {
"type": "number",
"maximum": 1,
"minimum": 0
},
"inbound_freight_cost": {
"type": "number",
"maximum": 100000000,
"minimum": 0
},
"repair_success_probability": {
"type": "number",
"maximum": 1,
"minimum": 0
}
},
"description": "Values that apply to every item that does not carry its own. An item value always wins.",
"additionalProperties": false
},
"decision_margin_pct": {
"type": "number",
"default": 5,
"maximum": 100,
"minimum": 0,
"description": "How far ahead the best route must be before it counts as a decision. Inside this margin the result is reported as ambiguous instead of asserting a winner."
}
},
"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 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/return-disposition, 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.