handel.halowerk.com

Name: handel.halowerk.com
Price: 0.004 USDC
Availability: InStock

HALOWERK provides paid endpoints that AI agents call and pay for per request via x402 on Base. No account, no API key, no signup.

DataLiveeip155:8453Exactvia cdp

https://handel.halowerk.com/v1/invoice-extract

Calls · 30d

1→ 0%

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 25 snapshots so far.

$11.49

Verified settled volume

2,661 settlements proven x402 by their on-chain EIP-3009 marker.

$0.0040

Listed price

As published in the catalog. Always read the live 402 before paying.

Calls · 30d

Upstream's own call count for this endpoint, not ours.

Unique payers · 30d

Last called 2026-08-19 15:04Z

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E

The 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://handel.halowerk.com/llms.txt",
  "name": "invoice_extract",
  "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": "4000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "pricing": "https://handel.halowerk.com/pricing",
  "resource": {
    "url": "https://handel.halowerk.com/v1/invoice-extract",
    "mimeType": "application/json",
    "description": "Reads a hybrid invoice and returns it as data. Accepts a PDF with an embedded ZUGFeRD or Factur-X XML, or the EN 16931 XML on its own, in either syntax the standard allows: CII, which ZUGFeRD and Factur-X use, and UBL, which XRechnung and Peppol BIS use."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "include_lines": true,
            "verify_totals": true,
            "document_base64": "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"
          },
          "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": [
                  "document_base64"
                ],
                "properties": {
                  "include_lines": {
                    "type": "boolean",
                    "default": true,
                    "description": "Whether to return the individual invoice lines. False returns only header, tax breakdown and totals."
                  },
                  "verify_totals": {
                    "type": "boolean",
                    "default": true,
                    "description": "Whether to recompute the stated totals from the lines and the tax breakdown and report every deviation."
                  },
                  "document_base64": {
                    "type": "string",
                    "maxLength": 250000,
                    "minLength": 16,
                    "description": "The document as base64. Either a PDF with an embedded ZUGFeRD or Factur-X XML, or the EN 16931 XML itself (CII or UBL). The JSON body of this hub is capped at 256 kB, so the base64 text must stay below 250000 characters, which is roughly 187 kB of file."
                  }
                },
                "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": "0.004",
  "description": "Reads a hybrid invoice and returns it as data. Accepts a PDF with an embedded ZUGFeRD or Factur-X XML, or the EN 16931 XML on its own, in either syntax the standard allows: CII, which ZUGFeRD and Factur-X use, and UBL, which XRechnung and Peppol BIS use. Both are mapped onto one flat result, so a caller does not have to know which syntax arrived: invoice number, type code, issue, delivery and due date, currency, profile identifier, buyer reference and order reference, seller and buyer with name, VAT number, legal identifier and address country, the payment means with IBAN and BIC, every line with quantity and unit code, net unit price, line net amount and tax category and rate, the tax breakdown per rate with taxable basis and tax amount, and the document totals from line total through tax basis, tax total and grand total to prepaid and amount due. The stated totals are then recomputed from the extracted parts in whole cents and every deviation is reported with the stated figure, the computed figure and the difference, with a one cent per tax group treated as rounding rather than as an error by the issuer. The result can be posted straight to /v1/invoice-audit for the full recomputation. Extraction is deterministic and literal: nothing is inferred, no model is involved, no external source is called, and a field that is not in the document comes back as null and is named in unavailable_fields. Scanned invoices are explicitly out of scope. A PDF that carries no embedded EN 16931 XML is rejected with a machine-readable reason and is never guessed at with text recognition, because a guessed invoice that is posted is a wrong booking that nobody notices in time.",
  "inputSchema": {
    "type": "object",
    "required": [
      "document_base64"
    ],
    "properties": {
      "include_lines": {
        "type": "boolean",
        "default": true,
        "description": "Whether to return the individual invoice lines. False returns only header, tax breakdown and totals."
      },
      "verify_totals": {
        "type": "boolean",
        "default": true,
        "description": "Whether to recompute the stated totals from the lines and the tax breakdown and report every deviation."
      },
      "document_base64": {
        "type": "string",
        "maxLength": 250000,
        "minLength": 16,
        "description": "The document as base64. Either a PDF with an embedded ZUGFeRD or Factur-X XML, or the EN 16931 XML itself (CII or UBL). The JSON body of this hub is capped at 256 kB, so the base64 text must stay below 250000 characters, which is roughly 187 kB of file."
      }
    },
    "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.

0.004USDC≈ $0.004 USD

on Base · exact scheme

Pay 0.004 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: 4000 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": "4000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "include_lines": true,
          "verify_totals": true,
          "document_base64": "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"
        },
        "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": [
                "document_base64"
              ],
              "properties": {
                "include_lines": {
                  "type": "boolean",
                  "default": true,
                  "description": "Whether to return the individual invoice lines. False returns only header, tax breakdown and totals."
                },
                "verify_totals": {
                  "type": "boolean",
                  "default": true,
                  "description": "Whether to recompute the stated totals from the lines and the tax breakdown and report every deviation."
                },
                "document_base64": {
                  "type": "string",
                  "maxLength": 250000,
                  "minLength": 16,
                  "description": "The document as base64. Either a PDF with an embedded ZUGFeRD or Factur-X XML, or the EN 16931 XML itself (CII or UBL). The JSON body of this hub is capped at 256 kB, so the base64 text must stay below 250000 characters, which is roughly 187 kB of file."
                }
              },
              "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: 2026-08-19 15:04Z
Last indexed by Roundhouse: 2026-09-18 14:40Z
Last enriched (probe, favicon, geo): 2026-09-23 09:45Z
x402 version: 2
Max timeout: 300s
Liveness probe: HTTP 402

Report

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. 25 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md

Show the prompt

Using Roundhouse, look up the x402 service handel.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=handel.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://handel.halowerk.com/v1/invoice-extract, 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.