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Payments · x402 · early usage

Supplier invoice check and vendor verification before payment: company, IBAN, VAT, sanc…

Supplier invoice check and vendor verification before payment: company, IBAN, VAT, sanctions. Use before an agent pays a supplier invoice: checks the supplier in official registers, screens it, its directors, owners and parent companies against EU, UN, UK and…

by factline.dev · discovered, not yet claimed by its owner · updated 2026-10-12

30d calls1
30d payers1
MethodGET
Outputjson

Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.

What it does

Supplier invoice check and vendor verification before payment: company, IBAN, VAT, sanctions. Use before an agent pays a supplier invoice: checks the supplier in official registers, screens it, its directors, owners and parent companies against EU, UN, UK and US sanctions and PEP, matches the VAT number, checks the IBAN (valid, same country as the company, registered on the Polish VAT whitelist), the sender's email domain and Dutch bankruptcy, and whether the supplier is on Peppol. One...

Tags: invoice · accounts-payable · supplier · vendor-verification · payment-fraud · bazaar · payment-identifier

Call contract

Method
GET
Input
query parameters
Output
json
Last paid call
2026-10-12
Input example from Bazaar metadata
{
  "country": "PL",
  "iban": "PL62102010260000190206882106",
  "id": "7740001454",
  "vat": "PL7740001454"
}
Output example
{
  "bank": {
    "country": "PL",
    "iban": "PL62 1020 1026 0000 1902 0688 2106",
    "reasons": [],
    "sepa": true,
    "valid": true
  },
  "checks": {
    "domain": "not requested (send domain)",
    "insolvency": "Dutch companies only",
    "register": {
      "source": "wl-api.mf.gov.pl",
      "status": "ok"
    },
    "sanctions": {
      "result": {
        "disclaimer": "Automated name screening aid, not legal advice. A match is a possible match: confirm identity with dates of birth, nationality and the official list before acting. Covers the targeted (asset-freeze/SDN) lists named in list.sources, refreshed weekly; not sectoral or export-control restrictions, or other national lists. A clean result is not clearance.",
        "list": {
          "entities": 25681,
          "loaded_at": "2026-10-12T00:20:52.400Z",
          "sources": [
            {
              "dated": "2026-09-22",
              "list": "EU",
              "name": "EU consolidated financial sanctions list (European Commission)"
            },
            {
              "dated": "2026-10-10",
              "list": "UN",
              "name": "UN Security Council consolidated sanctions list"
            },
            {
              "dated": "08/10/2026",
              "list": "UK",
              "name": "UK Sanctions List (FCDO/OFSI)"
            },
            {
              "dated": "OFAC SDN",
              "list": "US",
              "name": "US OFAC Specially Designated Nationals (SDN) list"
            }
          ]
        },
        "matches": [],
        "possible_match": false,
        "query": {
          "birth_year": null,
          "name": "ORLEN SPÓŁKA AKCYJNA",
          "threshold": 85,
          "type": "entity"
        },
        "source": "European Commission FSF; UN Security Council; UK FCDO; US Treasury OFAC"
      },
      "status": "ok"
    },
    "vat": {
      "result": {
        "address": "CHEMIKÓW 7, 09-411 PŁOCK",
        "checked_at": "2026-10-12T16:02:25.054Z",
        "country_code": "PL",
        "name": "ORLEN SPÓŁKA AKCYJNA",
        "source": "European Commission VIES (VAT Information Exchange System)",
        "valid": true,
        "vat_number": "PL7740001454"
      },
      "status": "ok"
    }
  },
  "einvoicing": {
    "accepts": [],
    "can_receive_invoices": false,
    "on_peppol": false,
    "participant_ids": []
  },
  "explain": {
    "disclaimer": "Automated screening aid, not legal or tax advice. Sanctions matches are possible matches; confirm against the official lists.",
    "limits": "Checks the supplier and the invoice details against official records. It cannot confirm who holds the bank account: for Dutch and other SEPA accounts use your bank's payee name check (Verification of Payee) before the first payment.",
    "verdict": "pass: supplier found and active, payment details consistent, nothing flagged; review: something needs a human look before paying (IBAN abroad, account not on the Polish whitelist, VAT mismatch, new website, email mismatch, insolvency); hold: do not pay yet (possible sanctions match on the company, a director, an owner or a parent company, or an invalid IBAN); incomplete: a source was down, retry."
  },
  "flags": [],
  "group": {
    "direct_parent": null,
    "direct_parent_note": "no LEI found for this company, so no parent data",
    "lei": null,
    "source": "GLEIF Level 2 relationship data (CC0)",
    "ultimate_parent": null,
    "ultimate_parent_note": null
  },
  "notes": [
    "IBAN is registered to this company on the Polish VAT whitelist"
  ],
  "people": "not published openly by this register",
  "sender_email": "not sent (send email)",
  "source": "Official company registers (see checks.register.source); GLEIF; EU, UN, UK and US sanctions lists; EU VIES; RDAP and DNS; Dutch Centraal Insolventieregister; Peppol Directory; ISO 13616 IBAN; Polish VAT whitelist (bank accounts); DNS",
  "supplier": {
    "address": "CHEMIKÓW 7, 09-411 PŁOCK",
    "bank_accounts": [
      "PL09102010260000110207607072",
      "PL28102010260000140207626759"
    ],
    "country": "PL",
    "incorporated": "1993-07-05",
    "legal_form": null,
    "lei": null,
    "name": "ORLEN SPÓŁKA AKCYJNA",
    "registry": "Polish VAT taxpayer register (Biala lista, Ministry of Finance)",
    "registry_id": "7740001454",
    "status": "active",
    "vat_status": "active VAT payer"
  },
  "verdict": "pass"
}

Use with an agent

  1. Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
  2. Inspect. Fetch /resources/34892.json for the price and payment options.
  3. Pay. Call GET https://factline.dev/v1/invoice/check. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
  4. Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, Solana, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price
$0.08 / request
Protocol
x402 v2
Auth
No account or API key. Pay per request.
Networks
Base, Solana
Demand
1 calls · 1 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

SchemeNetworkAssetAmountPay toTimeout
exactBase
eip155:8453
USDC$0.080xb58dd178abac67f6d4894437a7fc725cbddb2075120s
exactSolana
solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp
USDC$0.08fyqifu7otDYanhqr84B9YzZfA5LwRTJ1uFLqDJinMTK120s
accepts[] (raw JSON)
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xb58dd178abac67f6d4894437a7fc725cbddb2075",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "80000",
    "amountUsd": 0.08,
    "maxTimeoutSeconds": 120
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "fyqifu7otDYanhqr84B9YzZfA5LwRTJ1uFLqDJinMTK",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "80000",
    "amountUsd": 0.08,
    "maxTimeoutSeconds": 120
  }
]

Schemas

Output schema (JSON Schema)
{
  "properties": {
    "example": {
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}
Example shape — generated from the schema, not a captured live response
{
  "example": {},
  "type": "string"
}

Examples

curl
curl "https://factline.dev/v1/invoice/check"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://factline.dev/v1/invoice/check");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}
Python
import httpx
res = httpx.get("https://factline.dev/v1/invoice/check")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider
factline.dev
Endpoint
https://factline.dev/v1/invoice/check
Machine-readable
/resources/34892.json