HALOWERK x402werk
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. 15 snapshots so far.
$11.48
Verified settled volume
2,658 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 2026-08-09 18:26Z
—
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://x402.halowerk.com/llms.txt",
"name": "price_benchmark",
"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://x402.halowerk.com/pricing",
"summary": "Compares the price of one x402 endpoint with comparable offers from the public x402 Bazaar catalogue and states median, quartiles and where the price sits — with the reason each offer counts as comparable.",
"resource": {
"url": "https://x402.halowerk.com/benchmark/price",
"iconUrl": "https://x402.halowerk.com/favicon.svg",
"mimeType": "application/json",
"description": "Reads the public x402 Bazaar catalogue and finds offers comparable to yours, either from a resource_url whose 402 challenge is fetched without paying, or from a category and description you supply. Every comparable offer is listed with its price, its provider host, a similarity score and the terms both sides share, so comparability is justified rather than asserted; the formula, its weights and the inclusion threshold are stated in the answer. Prices are aggregated as median, p25 and p75 over co",
"serviceName": "HALOWERK x402werk"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"category": "web extraction",
"resource_url": "https://fetch.halowerk.com/extract"
},
"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",
"anyOf": [
{
"required": [
"resource_url"
]
},
{
"required": [
"description"
]
}
],
"properties": {
"category": {
"type": "string",
"maxLength": 120,
"description": "Category of the endpoint, for example \"web extraction\" or \"market data\". Used as extra comparison terms."
},
"description": {
"type": "string",
"maxLength": 2000,
"description": "What your endpoint delivers. Used to find comparable offers when no resource_url is given."
},
"resource_url": {
"type": "string",
"pattern": "^https?://",
"maxLength": 2048,
"description": "URL of your paid endpoint. Its 402 challenge is fetched without paying to read your own price and description."
},
"own_price_usdc": {
"type": "string",
"pattern": "^[0-9]+(\\.[0-9]+)?$",
"description": "Your price in whole stablecoin units, if it should not be read from a challenge."
},
"max_comparables": {
"type": "integer",
"default": 25,
"maximum": 50,
"minimum": 3,
"description": "How many comparable offers to list, highest similarity first."
}
},
"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": "Reads the public x402 Bazaar catalogue and finds offers comparable to yours, either from a resource_url whose 402 challenge is fetched without paying, or from a category and description you supply. Every comparable offer is listed with its price, its provider host, a similarity score and the terms both sides share, so comparability is justified rather than asserted; the formula, its weights and the inclusion threshold are stated in the answer. Prices are aggregated as median, p25 and p75 over comparable offers denominated in a known stablecoin, and position says whether your price sits below, at or above that range against stated thresholds. Below five comparable offers no position is given at all and the caveat says why. Offers denominated in other assets are counted but kept out of the price distribution, because converting them would require a price feed this service does not consult. The catalogue sample, its size against the full catalogue and its fetch time are named in every answer. This endpoint gives no pricing advice, calls no price fair or unfair and never suggests what to charge.",
"inputSchema": {
"type": "object",
"anyOf": [
{
"required": [
"resource_url"
]
},
{
"required": [
"description"
]
}
],
"properties": {
"category": {
"type": "string",
"maxLength": 120,
"description": "Category of the endpoint, for example \"web extraction\" or \"market data\". Used as extra comparison terms."
},
"description": {
"type": "string",
"maxLength": 2000,
"description": "What your endpoint delivers. Used to find comparable offers when no resource_url is given."
},
"resource_url": {
"type": "string",
"pattern": "^https?://",
"maxLength": 2048,
"description": "URL of your paid endpoint. Its 402 challenge is fetched without paying to read your own price and description."
},
"own_price_usdc": {
"type": "string",
"pattern": "^[0-9]+(\\.[0-9]+)?$",
"description": "Your price in whole stablecoin units, if it should not be read from a challenge."
},
"max_comparables": {
"type": "integer",
"default": 25,
"maximum": 50,
"minimum": 3,
"description": "How many comparable offers to list, highest similarity first."
}
},
"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.",
"outputSchema": {
"type": "object",
"properties": {
"p25": {
"type": [
"number",
"null"
]
},
"p75": {
"type": [
"number",
"null"
]
},
"age_ms": {
"type": [
"integer",
"null"
]
},
"catalog": {
"type": "object"
},
"caveats": {
"type": "array",
"items": {
"type": "string"
}
},
"position": {
"enum": [
"below",
"market",
"above",
null
],
"type": [
"string",
"null"
]
},
"own_price": {
"type": [
"number",
"null"
]
},
"comparable": {
"type": "array",
"items": {
"type": "object"
}
},
"ts_fetched": {
"type": "integer"
},
"sample_size": {
"type": "integer"
},
"median_price": {
"type": [
"number",
"null"
]
},
"thresholds_used": {
"type": "object"
},
"own_price_source": {
"type": [
"string",
"null"
]
},
"category_detected": {
"type": [
"string",
"null"
]
},
"unavailable_fields": {
"type": "array",
"items": {
"type": "string"
}
}
}
},
"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≈ $0.006 USD
on Base · exact scheme
Pay 0.006 USDC on Base to 0x2880…C4E5E. The signed payment is good for 5 minutes.
- Paid to
- 0x2880…C4E5E
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 6000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"asset": "USDC",
"version": "2",
"eip712Domain": {
"name": "USD Coin",
"chainId": 8453,
"version": "2",
"verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"network_name": "Base Mainnet",
"assetTransferMethod": "eip3009"
},
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"amount": "6000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"category": "market-data",
"resource_url": "https://example.com"
},
"type": "http",
"method": "POST",
"bodyType": "json"
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"anyOf": [
{
"required": [
"resource_url"
]
},
{
"required": [
"description"
]
}
],
"properties": {
"category": {
"type": "string",
"maxLength": 120,
"description": "Category of the endpoint, for example \"web extraction\" or \"market data\". Used as extra comparison terms."
},
"description": {
"type": "string",
"maxLength": 2000,
"description": "What your endpoint delivers. Used to find comparable offers when no resource_url is given."
},
"resource_url": {
"type": "string",
"pattern": "^https?://",
"maxLength": 2048,
"description": "URL of your paid endpoint. Its 402 challenge is fetched without paying to read your own price and description."
},
"own_price_usdc": {
"type": "string",
"pattern": "^[0-9]+(\\.[0-9]+)?$",
"description": "Your price in whole stablecoin units, if it should not be read from a challenge."
},
"max_comparables": {
"type": "integer",
"default": 25,
"maximum": 50,
"minimum": 3,
"description": "How many comparable offers to list, highest similarity first."
}
},
"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
- 2026-08-09 18:26Z
- Last indexed by Roundhouse
- 2026-09-08 18:00Z
- Last enriched (probe, favicon, geo)
- 2026-09-20 18:45Z
- 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. 15 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 HALOWERK x402werk 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=HALOWERK%20x402werk' 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://x402.halowerk.com/benchmark/price, 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.