medien.halowerk.com
Called without "fields" it inspects: every AcroForm field of the PDF comes back with its name, type, current value, whether it is required or read-only, the permitted options for dropdowns, radio groups and list boxes, and the character limit of text fields. Called with "fields" it fills exactly those and returns the resulting PDF as base64, together with what each field held before and after.
SearchLiveeip155:8453Exactvia cdp
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 18 snapshots so far.
$11.47
Verified settled volume
2,654 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0050
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": "pdf_fill",
"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": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"pricing": "https://medien.halowerk.com/pricing",
"resource": {
"url": "https://medien.halowerk.com/v1/pdf-fill",
"mimeType": "application/json",
"description": "Called without \"fields\" it inspects: every AcroForm field of the PDF comes back with its name, type, current value, whether it is required or read-only, the permitted options for dropdowns, radio groups and list boxes, and the character limit of text fields. Called with \"fields\" it fills exactly those and returns the resulting PDF as base64, together with what each field held before and after."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"source": {
"url": "https://example.com/antrag.pdf"
}
},
"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": {
"fields": {
"type": "object",
"description": "Field name to value. Text fields take strings, check boxes true/false, dropdowns and radio groups one of their options, list boxes an array. Omit entirely to only inspect the form.",
"additionalProperties": {
"type": [
"string",
"number",
"boolean",
"array",
"null"
]
}
},
"source": {
"type": "object",
"properties": {
"url": {
"type": "string",
"maxLength": 2048,
"description": "Public http(s) URL of the PDF."
},
"filename": {
"type": "string",
"maxLength": 260
},
"content_base64": {
"type": "string",
"maxLength": 12000000,
"description": "The PDF inline, base64."
}
},
"description": "The PDF. Either url or content_base64.",
"additionalProperties": false
},
"flatten": {
"type": "boolean",
"default": false,
"description": "Bake the values into the page content. Irreversible: the form is gone afterwards."
},
"return_pdf": {
"type": "boolean",
"default": true,
"description": "Return the filled PDF as base64. Set false if only the field report is wanted."
},
"ignore_encryption": {
"type": "boolean",
"default": false,
"description": "Try to open a PDF that declares encryption. Filling usually still fails; off by default so the reason stays visible."
}
},
"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": "0.005",
"description": "Called without \"fields\" it inspects: every AcroForm field of the PDF comes back with its name, type, current value, whether it is required or read-only, the permitted options for dropdowns, radio groups and list boxes, and the character limit of text fields. Called with \"fields\" it fills exactly those and returns the resulting PDF as base64, together with what each field held before and after. Values are checked against the form before anything is written — an unknown field name, a value outside a dropdown list, text beyond a field length limit or a write to a read-only field is refused with the reason and nothing is charged, because a half-filled PDF is worse than none. Signatures are outside this service by design: it will not set a cryptographic signature and will not paste a picture of one, it refuses any write to a signature field, and if the document already carries a signature it refuses to modify it at all — any change to a signed PDF breaks that signature, and returning a document whose proof is quietly broken would be the most damaging thing this endpoint could do. Inspection of a signed document is still available. Optional flattening bakes the entered values into the page content so they can no longer be edited; note that flattening is irreversible and removes the form.",
"inputSchema": {
"type": "object",
"required": [
"source"
],
"properties": {
"fields": {
"type": "object",
"description": "Field name to value. Text fields take strings, check boxes true/false, dropdowns and radio groups one of their options, list boxes an array. Omit entirely to only inspect the form.",
"additionalProperties": {
"type": [
"string",
"number",
"boolean",
"array",
"null"
]
}
},
"source": {
"type": "object",
"properties": {
"url": {
"type": "string",
"maxLength": 2048,
"description": "Public http(s) URL of the PDF."
},
"filename": {
"type": "string",
"maxLength": 260
},
"content_base64": {
"type": "string",
"maxLength": 12000000,
"description": "The PDF inline, base64."
}
},
"description": "The PDF. Either url or content_base64.",
"additionalProperties": false
},
"flatten": {
"type": "boolean",
"default": false,
"description": "Bake the values into the page content. Irreversible: the form is gone afterwards."
},
"return_pdf": {
"type": "boolean",
"default": true,
"description": "Return the filled PDF as base64. Set false if only the field report is wanted."
},
"ignore_encryption": {
"type": "boolean",
"default": false,
"description": "Try to open a PDF that declares encryption. Filling usually still fails; off by default so the reason stays visible."
}
},
"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.
0.005USDC≈ $0.005 USD
on Base · exact scheme
Pay 0.005 USDC on Base to 0x2880…C4E5E. The signed payment is good for 5 minutes.
- Paid to
- 0x2880…C4E5E
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 5000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"asset": "USDC",
"version": "2",
"eip712Domain": {
"name": "USD Coin",
"chainId": 8453,
"version": "2",
"verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"network_name": "Base Mainnet",
"assetTransferMethod": "eip3009"
},
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"source": {
"url": "https://example.com/antrag.pdf"
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
}
},
"schema": {
"type": "object",
"$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": {
"fields": {
"type": "object",
"description": "Field name to value. Text fields take strings, check boxes true/false, dropdowns and radio groups one of their options, list boxes an array. Omit entirely to only inspect the form.",
"additionalProperties": {
"type": [
"string",
"number",
"boolean",
"array",
"null"
]
}
},
"source": {
"type": "object",
"properties": {
"url": {
"type": "string",
"maxLength": 2048,
"description": "Public http(s) URL of the PDF."
},
"filename": {
"type": "string",
"maxLength": 260
},
"content_base64": {
"type": "string",
"maxLength": 12000000,
"description": "The PDF inline, base64."
}
},
"description": "The PDF. Either url or content_base64.",
"additionalProperties": false
},
"flatten": {
"type": "boolean",
"default": false,
"description": "Bake the values into the page content. Irreversible: the form is gone afterwards."
},
"return_pdf": {
"type": "boolean",
"default": true,
"description": "Return the filled PDF as base64. Set false if only the field report is wanted."
},
"ignore_encryption": {
"type": "boolean",
"default": false,
"description": "Try to open a PDF that declares encryption. Filling usually still fails; off by default so the reason stays visible."
}
},
"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. 18 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/pdf-fill, 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.