medien.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. 21 snapshots so far.
$11.47
Verified settled volume
2,654 settlements proven x402 by their on-chain EIP-3009 marker.
$0.060
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 2026-09-21 09:57Z
—
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://medien.halowerk.com/llms.txt",
"name": "stt",
"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": "20000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"pricing": "https://medien.halowerk.com/pricing",
"resource": {
"url": "https://medien.halowerk.com/v1/stt",
"mimeType": "application/json",
"description": "Takes an audio or video file by URL or inline base64 and returns the transcript: the full text, every word with start and end time and its own confidence, the utterances and paragraphs the recogniser separated, and the detected language with its confidence where no language was specified."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"source": {
"url": "https://example.com/besprechung.mp3"
},
"language": "de",
"duration_minutes": 3,
"confidence_threshold": 0.7
},
"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": [
"source",
"duration_minutes"
],
"properties": {
"source": {
"type": "object",
"properties": {
"url": {
"type": "string",
"maxLength": 2048,
"description": "Public http(s) URL of the audio or video file."
},
"filename": {
"type": "string",
"maxLength": 260
},
"content_base64": {
"type": "string",
"maxLength": 12000000,
"description": "The file inline, base64. Larger files must come by url."
}
},
"description": "The recording. Either url or content_base64.",
"additionalProperties": false
},
"language": {
"type": "string",
"maxLength": 12,
"description": "BCP-47 code such as de, en, es. \"multi\" enables multilingual recognition and is billed at the provider's higher rate. Omit to let the recogniser detect the language."
},
"include_words": {
"type": "boolean",
"default": true,
"description": "Return every word with its timestamp. Off returns only the text, paragraphs and utterances."
},
"duration_minutes": {
"type": "integer",
"maximum": 30,
"minimum": 1,
"description": "Length of the recording in started minutes — this is what you are billed for. A longer file is refused with its real length and nothing is charged; a shorter one costs what you declared, and the answer says how much less it would have been."
},
"confidence_threshold": {
"type": "number",
"default": 0.7,
"maximum": 1,
"minimum": 0,
"description": "Words below this confidence are listed separately as the passages worth checking."
}
},
"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": "0.020000",
"description": "Takes an audio or video file by URL or inline base64 and returns the transcript: the full text, every word with start and end time and its own confidence, the utterances and paragraphs the recogniser separated, and the detected language with its confidence where no language was specified. Alongside comes a confidence breakdown — mean, median, lowest tenth, and the weakest words listed with their timestamps — because a transcript reads equally fluent where the recogniser was certain and where it guessed, and the difference is exactly what a caller needs before quoting it. The running time is measured locally with ffprobe before anything is sent, so a file longer than declared is refused with its real length and nothing is charged, at this end or the provider. Billing is per started audio minute and the price is fixed before the file is even fetched, which is why the caller declares the length. Processing is by Deepgram, and that is stated in every answer along with what leaves this machine: Deepgram uses submitted content to train its models by default, so this service sends the per-request opt-out on every single call — a measure whose effect cannot be verified from the outside, since unknown parameters are accepted just as silently, and the answer says so rather than implying a guarantee. The result is machine-generated and must not be passed off as human transcription. Nothing is cached; neither audio nor transcript is written to any database, log or error message.",
"inputSchema": {
"type": "object",
"required": [
"source",
"duration_minutes"
],
"properties": {
"source": {
"type": "object",
"properties": {
"url": {
"type": "string",
"maxLength": 2048,
"description": "Public http(s) URL of the audio or video file."
},
"filename": {
"type": "string",
"maxLength": 260
},
"content_base64": {
"type": "string",
"maxLength": 12000000,
"description": "The file inline, base64. Larger files must come by url."
}
},
"description": "The recording. Either url or content_base64.",
"additionalProperties": false
},
"language": {
"type": "string",
"maxLength": 12,
"description": "BCP-47 code such as de, en, es. \"multi\" enables multilingual recognition and is billed at the provider's higher rate. Omit to let the recogniser detect the language."
},
"include_words": {
"type": "boolean",
"default": true,
"description": "Return every word with its timestamp. Off returns only the text, paragraphs and utterances."
},
"duration_minutes": {
"type": "integer",
"maximum": 30,
"minimum": 1,
"description": "Length of the recording in started minutes — this is what you are billed for. A longer file is refused with its real length and nothing is charged; a shorter one costs what you declared, and the answer says how much less it would have been."
},
"confidence_threshold": {
"type": "number",
"default": 0.7,
"maximum": 1,
"minimum": 0,
"description": "Words below this confidence are listed separately as the passages worth checking."
}
},
"additionalProperties": false
},
"price_basis": {
"unit": "Audiominute",
"basis": "duration_minutes aus der Anfrage, aufgerundet. Die wirkliche Laufzeit wird vor dem Abruf lokal gemessen; ist sie laenger, wird abgelehnt und nichts abgebucht.",
"units": 1
},
"price_model": {
"kind": "per_unit",
"unit": "Audiominute",
"max_usdc": "0.60",
"min_usdc": "0.02",
"max_units": 30,
"unit_price_usdc": "0.02"
},
"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.
0.06USDC≈ $0.06 USD
on Base · exact scheme
Pay 0.06 USDC on Base to 0x2880…C4E5E. The signed payment is good for 5 minutes.
- Paid to
- 0x2880…C4E5E
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 60000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"asset": "USDC",
"version": "2",
"eip712Domain": {
"name": "USD Coin",
"chainId": 8453,
"version": "2",
"verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"network_name": "Base Mainnet",
"assetTransferMethod": "eip3009"
},
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"amount": "60000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"source": {
"url": "https://example.com/besprechung.mp3"
},
"language": "de",
"duration_minutes": 3,
"confidence_threshold": 0.7
},
"type": "http",
"method": "POST",
"bodyType": "json"
}
},
"schema": {
"type": "object",
"$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": [
"source",
"duration_minutes"
],
"properties": {
"source": {
"type": "object",
"properties": {
"url": {
"type": "string",
"maxLength": 2048,
"description": "Public http(s) URL of the audio or video file."
},
"filename": {
"type": "string",
"maxLength": 260
},
"content_base64": {
"type": "string",
"maxLength": 12000000,
"description": "The file inline, base64. Larger files must come by url."
}
},
"description": "The recording. Either url or content_base64.",
"additionalProperties": false
},
"language": {
"type": "string",
"maxLength": 12,
"description": "BCP-47 code such as de, en, es. \"multi\" enables multilingual recognition and is billed at the provider's higher rate. Omit to let the recogniser detect the language."
},
"include_words": {
"type": "boolean",
"default": true,
"description": "Return every word with its timestamp. Off returns only the text, paragraphs and utterances."
},
"duration_minutes": {
"type": "integer",
"maximum": 30,
"minimum": 1,
"description": "Length of the recording in started minutes — this is what you are billed for. A longer file is refused with its real length and nothing is charged; a shorter one costs what you declared, and the answer says how much less it would have been."
},
"confidence_threshold": {
"type": "number",
"default": 0.7,
"maximum": 1,
"minimum": 0,
"description": "Words below this confidence are listed separately as the passages worth checking."
}
},
"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
- 2026-09-21 09:57Z
- Last indexed by Roundhouse
- 2026-09-24 08:30Z
- Last enriched (probe, favicon, geo)
- 2026-09-21 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. 21 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 medien.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=medien.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://medien.halowerk.com/v1/stt, 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.