Document Extraction Hub

PDF or picture in, structured JSON out, with a page and a position behind every field, plus every QR code and barcode decoded. Paid per page in USDC over x402. No signup, no API key.

OtherLiveeip155:8453Exactvia cdp
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 16 snapshots so far.
$11.47
Verified settled volume
2,654 settlements proven x402 by their on-chain EIP-3009 marker.
$0.020
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 2026-08-09 18:26Z
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://doc.halowerk.com/llms.txt",
  "error": "payment_required",
  "quote": {
    "note": "The exact page count and processing mode are quoted after valid input is supplied.",
    "model": "per_page",
    "minimum_pages": 1,
    "minimum_price_usdc": "0.020000"
  },
  "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://doc.halowerk.com/pricing",
  "summary": "Turn one PDF into structured JSON: header fields, tables as rows and columns, key value pairs and per page full text, each field with its page, position and confidence.",
  "resource": {
    "url": "https://doc.halowerk.com/document",
    "iconUrl": "https://doc.halowerk.com/favicon.svg",
    "mimeType": "application/json",
    "description": "Turn one PDF into structured JSON: header fields, tables as rows and columns, key value pairs and per page full text, each field with its page, position and confidence.",
    "serviceName": "Document Extraction Hub"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "pdf_base64": "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",
            "include_raw": 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",
                "properties": {
                  "url": {
                    "type": "string",
                    "format": "uri",
                    "description": "Public http or https URL of the PDF. Use this or \"pdf_base64\", not both."
                  },
                  "pages": {
                    "anyOf": [
                      {
                        "type": "string"
                      },
                      {
                        "type": "array",
                        "items": {
                          "type": "integer",
                          "minimum": 1
                        }
                      }
                    ],
                    "description": "Optional page range, for example \"1-5\", \"2,4,7\" or [1,2,3]. At most 20 pages per call."
                  },
                  "schema": {
                    "type": "object",
                    "description": "Optional JSON Schema. Every property is looked up in the document and returned with value, confidence and source. A property that is not in the document stays empty."
                  },
                  "pdf_base64": {
                    "type": "string",
                    "description": "The PDF as base64. Use this or \"url\", not both."
                  },
                  "include_raw": {
                    "type": "boolean",
                    "default": false,
                    "description": "With a schema, also return header data, tables and key value pairs alongside the mapped result."
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          }
        }
      }
    }
  },
  "inputSchema": {
    "type": "object",
    "properties": {
      "url": {
        "type": "string",
        "format": "uri",
        "description": "Public http or https URL of the PDF. Use this or \"pdf_base64\", not both."
      },
      "pages": {
        "anyOf": [
          {
            "type": "string"
          },
          {
            "type": "array",
            "items": {
              "type": "integer",
              "minimum": 1
            }
          }
        ],
        "description": "Optional page range, for example \"1-5\", \"2,4,7\" or [1,2,3]. At most 20 pages per call."
      },
      "schema": {
        "type": "object",
        "description": "Optional JSON Schema. Every property is looked up in the document and returned with value, confidence and source. A property that is not in the document stays empty."
      },
      "pdf_base64": {
        "type": "string",
        "description": "The PDF as base64. Use this or \"url\", not both."
      },
      "include_raw": {
        "type": "boolean",
        "default": false,
        "description": "With a schema, also return header data, tables and key value pairs alongside the mapped result."
      }
    }
  },
  "x402Version": 2,
  "instructions": "Supply valid input to receive the exact quote, then sign and repeat the identical request.",
  "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.

0.02USDC≈ $0.02 USD
on Base · exact scheme

Pay 0.02 USDC on Base to 0x2880…C4E5E. The signed payment is good for 5 minutes.

USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
20000 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": "20000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "url": "https://example.com/rechnung.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",
              "properties": {
                "url": {
                  "type": "string",
                  "format": "uri",
                  "description": "Public http or https URL of the PDF. Use this or \"pdf_base64\", not both."
                },
                "pages": {
                  "anyOf": [
                    {
                      "type": "string"
                    },
                    {
                      "type": "array",
                      "items": {
                        "type": "integer",
                        "minimum": 1
                      }
                    }
                  ],
                  "description": "Optional page range, for example \"1-5\", \"2,4,7\" or [1,2,3]. At most 20 pages per call."
                },
                "schema": {
                  "type": "object",
                  "description": "Optional JSON Schema. Every property is looked up in the document and returned with value, confidence and source. A property that is not in the document stays empty."
                },
                "pdf_base64": {
                  "type": "string",
                  "description": "The PDF as base64. Use this or \"url\", not both."
                },
                "include_raw": {
                  "type": "boolean",
                  "default": false,
                  "description": "With a schema, also return header data, tables and key value pairs alongside the mapped result."
                }
              }
            },
            "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
2026-08-09 18:26Z
Last indexed by Roundhouse
2026-09-08 18:00Z
Last enriched (probe, favicon, geo)
2026-09-20 18:45Z
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. 16 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 Document Extraction Hub 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=Document%20Extraction%20Hub'
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://doc.halowerk.com/document, 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.