medien.halowerk.com
Takes one media file by URL or inline base64 and reads its C2PA manifest store. The answer says whether a manifest is present at all, whether the cryptographic checks pass — every failing check is returned with its code and explanation, so a hash mismatch on the image data is distinguishable from a broken claim signature — who the signing certificate names as issuer, its serial number, the signing algorithm and the signing time, the chain of ingredients a derived file inherited from, and every…
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. 17 snapshots so far.
$11.48
Verified settled volume
2,658 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0020
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 2026-08-11 13:11Z
—
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": "c2pa_verify",
"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": "2000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"pricing": "https://medien.halowerk.com/pricing",
"resource": {
"url": "https://medien.halowerk.com/v1/c2pa-verify",
"mimeType": "application/json",
"description": "Takes one media file by URL or inline base64 and reads its C2PA manifest store. The answer says whether a manifest is present at all, whether the cryptographic checks pass — every failing check is returned with its code and explanation, so a hash mismatch on the image data is distinguishable from a broken claim signature — who the signing certificate names as issuer, its serial number, the signing algorithm and the signing time, the chain of ingredients a derived file inherited from, and every…"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"source": {
"filename": "unsigned-example.png",
"content_base64": "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"
},
"include_assertions": false
},
"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"
],
"properties": {
"source": {
"type": "object",
"properties": {
"url": {
"type": "string",
"maxLength": 2048,
"description": "Public http(s) URL of the file."
},
"filename": {
"type": "string",
"maxLength": 260
},
"content_base64": {
"type": "string",
"maxLength": 12000000,
"description": "The file inline, base64."
}
},
"description": "The media file. Either url or content_base64.",
"additionalProperties": false
},
"include_assertions": {
"type": "boolean",
"default": true,
"description": "Return the full assertion payloads, not only their labels."
},
"max_assertion_chars": {
"type": "integer",
"default": 4000,
"maximum": 20000,
"minimum": 200,
"description": "Ceiling per assertion payload; longer ones are shortened and marked."
},
"include_all_manifests": {
"type": "boolean",
"default": false,
"description": "Return every manifest in the store, not only the active one."
}
},
"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": "0.002",
"description": "Takes one media file by URL or inline base64 and reads its C2PA manifest store. The answer says whether a manifest is present at all, whether the cryptographic checks pass — every failing check is returned with its code and explanation, so a hash mismatch on the image data is distinguishable from a broken claim signature — who the signing certificate names as issuer, its serial number, the signing algorithm and the signing time, the chain of ingredients a derived file inherited from, and every edit action the manifest records. Where the manifest declares a digital source type, it is translated: trainedAlgorithmicMedia means generated by a model, compositeWithTrainedAlgorithmicMedia means partly so, digitalCapture means a camera. The verdict is deliberately narrow. A passing check proves that the file has not changed since it was signed and matches what the signer signed. It does not prove that the signer is who the certificate says, that the depicted scene is real, or that nothing was omitted before signing — and this endpoint does not check the issuer against a trust list, so an unknown or self-issued certificate produces the same passing hashes as a camera manufacturer, and the answer says so instead of implying accreditation. The absence of a manifest is likewise reported as absence and nothing more: almost no file in the world carries Content Credentials, so a missing manifest is not evidence of manipulation. Nothing is stored beyond the request.",
"inputSchema": {
"type": "object",
"required": [
"source"
],
"properties": {
"source": {
"type": "object",
"properties": {
"url": {
"type": "string",
"maxLength": 2048,
"description": "Public http(s) URL of the file."
},
"filename": {
"type": "string",
"maxLength": 260
},
"content_base64": {
"type": "string",
"maxLength": 12000000,
"description": "The file inline, base64."
}
},
"description": "The media file. Either url or content_base64.",
"additionalProperties": false
},
"include_assertions": {
"type": "boolean",
"default": true,
"description": "Return the full assertion payloads, not only their labels."
},
"max_assertion_chars": {
"type": "integer",
"default": 4000,
"maximum": 20000,
"minimum": 200,
"description": "Ceiling per assertion payload; longer ones are shortened and marked."
},
"include_all_manifests": {
"type": "boolean",
"default": false,
"description": "Return every manifest in the store, not only the active one."
}
},
"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.
0.002USDC≈ $0.002 USD
on Base · exact scheme
Pay 0.002 USDC on Base to 0x2880…C4E5E. The signed payment is good for 5 minutes.
- Paid to
- 0x2880…C4E5E
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 2000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"asset": "USDC",
"version": "2",
"eip712Domain": {
"name": "USD Coin",
"chainId": 8453,
"version": "2",
"verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"network_name": "Base Mainnet",
"assetTransferMethod": "eip3009"
},
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"source": {
"url": "https://example.com/foto.jpg"
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
}
},
"schema": {
"type": "object",
"$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"
],
"properties": {
"source": {
"type": "object",
"properties": {
"url": {
"type": "string",
"maxLength": 2048,
"description": "Public http(s) URL of the file."
},
"filename": {
"type": "string",
"maxLength": 260
},
"content_base64": {
"type": "string",
"maxLength": 12000000,
"description": "The file inline, base64."
}
},
"description": "The media file. Either url or content_base64.",
"additionalProperties": false
},
"include_assertions": {
"type": "boolean",
"default": true,
"description": "Return the full assertion payloads, not only their labels."
},
"max_assertion_chars": {
"type": "integer",
"default": 4000,
"maximum": 20000,
"minimum": 200,
"description": "Ceiling per assertion payload; longer ones are shortened and marked."
},
"include_all_manifests": {
"type": "boolean",
"default": false,
"description": "Return every manifest in the store, not only the active one."
}
},
"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
- 2026-08-11 13:11Z
- Last indexed by Roundhouse
- 2026-09-10 13:00Z
- Last enriched (probe, favicon, geo)
- 2026-09-21 04:45Z
- 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. 17 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/c2pa-verify, 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.