audio.halowerk.com
Four actions on one endpoint. create opens a slot with its position, length, reserve price and closing time, and returns an admin token that only the opener holds. bid places a sealed bid, checked against the reserve, the slot length and the publisher's excluded categories before it is accepted — a rejected bid is recorded with its reason rather than silently dropped, so a bidder can see why it never competed.
Offering
- Provider
- audio.halowerk.com
- Method
- POST
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Prediction Markets
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://audio.halowerk.com/ad-slot-auction- MIME type
- Not provided
- First seen
- 2026-10-16T01:58:26.121Z
- Last seen
- Tags
- None supplied
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.004 USDC
Atomic price: 4000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "4000",
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E"
}
]Observed health
- Status
- Healthy
- Latest latency
- 302 ms
- Average latency
- 1317 ms
- HTTP status
- 204
- Last checked
- Reachability
- 100% over 10 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"action": {
"description": "create opens a slot, bid places a sealed bid, close settles it, status reads it.",
"enum": [
"create",
"bid",
"close",
"status"
],
"type": "string"
},
"admin_token": {
"description": "Required for close. Returned once by create.",
"maxLength": 128,
"type": "string"
},
"amount_usdc": {
"description": "Sealed bid amount. bid only.",
"maximum": 100000,
"minimum": 0,
"type": "number"
},
"auction_id": {
"description": "Required for bid, close and status.",
"maxLength": 64,
"type": "string"
},
"bidder": {
"description": "Who is bidding. bid only.",
"maxLength": 120,
"type": "string"
},
"category": {
"description": "Advertiser category, checked against the exclusions. bid only.",
"maxLength": 40,
"type": "string"
},
"closes_at_unix": {
"description": "Closing time in Unix seconds. create only. At most 30 days out.",
"minimum": 0,
"type": "integer"
},
"creative_seconds": {
"description": "Length of the advertisement, checked against the slot. bid only.",
"maximum": 180,
"minimum": 1,
"type": "integer"
},
"excluded_categories": {
"description": "Advertiser categories the publisher refuses. create only.",
"items": {
"maxLength": 40,
"type": "string"
},
"maxItems": 20,
"type": "array"
},
"expected_listeners": {
"description": "Reach the publisher claims. Recorded as a claim, not verified. create only.",
"maximum": 100000000,
"minimum": 0,
"type": "integer"
},
"position": {
"description": "Where the slot sits in the content. create only.",
"enum": [
"pre_roll",
"mid_roll",
"post_roll"
],
"type": "string"
},
"publisher": {
"description": "Name of the publisher offering the slot. create only.",
"maxLength": 120,
"type": "string"
},
"reserve_usdc": {
"description": "Price below which the slot is not sold. create only.",
"maximum": 100000,
"minimum": 0,
"type": "number"
},
"slot_label": {
"description": "What is being sold, for example \"episode 41, mid-roll 2\". create only.",
"maxLength": 200,
"type": "string"
},
"slot_seconds": {
"description": "Length of the slot. create only.",
"maximum": 180,
"minimum": 5,
"type": "integer"
}
},
"required": [
"action"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}Output schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"action": {
"description": "create opens a slot, bid places a sealed bid, close settles it, status reads it.",
"enum": [
"create",
"bid",
"close",
"status"
],
"type": "string"
},
"admin_token": {
"description": "Required for close. Returned once by create.",
"maxLength": 128,
"type": "string"
},
"amount_usdc": {
"description": "Sealed bid amount. bid only.",
"maximum": 100000,
"minimum": 0,
"type": "number"
},
"auction_id": {
"description": "Required for bid, close and status.",
"maxLength": 64,
"type": "string"
},
"bidder": {
"description": "Who is bidding. bid only.",
"maxLength": 120,
"type": "string"
},
"category": {
"description": "Advertiser category, checked against the exclusions. bid only.",
"maxLength": 40,
"type": "string"
},
"closes_at_unix": {
"description": "Closing time in Unix seconds. create only. At most 30 days out.",
"minimum": 0,
"type": "integer"
},
"creative_seconds": {
"description": "Length of the advertisement, checked against the slot. bid only.",
"maximum": 180,
"minimum": 1,
"type": "integer"
},
"excluded_categories": {
"description": "Advertiser categories the publisher refuses. create only.",
"items": {
"maxLength": 40,
"type": "string"
},
"maxItems": 20,
"type": "array"
},
"expected_listeners": {
"description": "Reach the publisher claims. Recorded as a claim, not verified. create only.",
"maximum": 100000000,
"minimum": 0,
"type": "integer"
},
"position": {
"description": "Where the slot sits in the content. create only.",
"enum": [
"pre_roll",
"mid_roll",
"post_roll"
],
"type": "string"
},
"publisher": {
"description": "Name of the publisher offering the slot. create only.",
"maxLength": 120,
"type": "string"
},
"reserve_usdc": {
"description": "Price below which the slot is not sold. create only.",
"maximum": 100000,
"minimum": 0,
"type": "number"
},
"slot_label": {
"description": "What is being sold, for example \"episode 41, mid-roll 2\". create only.",
"maxLength": 200,
"type": "string"
},
"slot_seconds": {
"description": "Length of the slot. create only.",
"maximum": 180,
"minimum": 5,
"type": "integer"
}
},
"required": [
"action"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}