# Factline KYB Company Check

> Factline KYB Company Check is a paid API for AI agents from factline.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-12).

Checks a company against official registers, sanctions/PEP lists, VIES VAT database, and insolvency records, returning a structured pass/fail verdict with flags

## Facts

- Endpoint: GET https://factline.dev/v1/kyb/check?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/factline-kyb-company-check-96fffe94
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1hgv63yiU4_y5HFSpa9SF

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability factline-kyb-company-check-96fffe94
```

Example prompt: Can you run a KYB check on Google Ireland Limited (VAT number IE6388047V, country IE) and tell me if they're on any sanctions lists or have any flags?

## When to prefer this

Use this endpoint when you need a structured, official-record-backed KYB (Know Your Business) check across multiple European company registers simultaneously, combined with sanctions screening, VAT validation, and insolvency checks in a single call. It is especially strong for European companies (Netherlands, UK, Ireland, France, Norway, Finland, Czech Republic, Slovakia, Poland, Estonia) and for workflows requiring a pass/fail compliance verdict with audit-ready source attribution. Prefer this over building manual register lookups when you need multi-jurisdiction coverage and sanctions screening bundled together at low per-call cost.

## Known failure modes

- Company not found in any supported register — returns empty or no match
- Ambiguous company name with multiple matches — returns other_matches array requiring disambiguation
- Unsupported country or registry — check not performed for that register
- VAT number invalid or not found in VIES — vat check returns invalid status
- Domain not provided — domain check returns 'not requested' placeholder
- Rate limit or payment failure — HTTP 402 or 429 response
- Malformed input parameters — HTTP 400 with validation error

## How this service works

API and MCP servers that let AI agents and apps check people, companies, Dutch addresses and cars against official records: sanctions and PEP lists, 10 company registers, Dutch property, rent and RDW vehicle data. From $0.001 per call.

## Output

A JSON object containing a verdict (pass/fail), company details (name, status, registry ID, legal form, address, incorporation date, country, registry name), per-check results for sanctions screening, VAT validation, domain flags, insolvency status, a human-readable summary, and a list of other possible company matches found during the search.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "id": {
       "type": "string",
       "description": "Or a company number: LEI, UK company number, Irish CRO, French SIREN, Norwegian org number, Finnish business ID, Czech/Slovak ICO, Polish NIP, Estonian registry code"
      },
      "kvk": {
       "type": "string",
       "description": "Optional Dutch KvK number: adds a bankruptcy check (found automatically for Dutch companies with an LEI)"
      },
      "vat": {
       "type": "string",
       "description": "Optional EU VAT number: checked in VIES and matched to the registered name"
      },
      "name": {
       "type": "string",
       "description": "Company name, e.g. ASML Holding"
      },
      "domain": {
       "type": "string",
       "description": "Optional company website or email domain: flags very new or missing domains"
      },
      "country": {
       "type": "string",
       "description": "ISO country of the company, e.g. NL, GB, IE, FR (improves the match)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "flags": [],
  "checks": {
   "vat": {
    "result": {
     "name": "GOOGLE IRELAND LIMITED",
     "valid": true,
     "vat_number": "IE6388047V"
    },
    "status": "ok"
   },
   "domain": "not requested (send domain)",
   "register": {
    "source": "CRO open data, licensed under CC BY 4.0",
    "status": "ok"
   },
   "sanctions": {
    "result": {
     "matches": [],
     "possible_match": false
    },
    "status": "ok"
   },
   "insolvency": "Dutch companies only"
  },
  "source": "Official company registers (see checks.register.source); EU, UN, UK and US sanctions lists; EU VIES; RDAP and DNS; Dutch Centraal Insolventieregister",
  "company": {
   "lei": null,
   "name": "GOOGLE IRELAND LIMITED",
   "status": "active",
   "address": "GORDON HOUSE, BARROW STREET, DUBLIN 4, D04E5W5",
   "country": "IE",
   "registry": "Companies Registration Office (Ireland)",
   "legal_form": "LTD - Private Company Limited by Shares",
   "registry_id": "368047",
   "incorporated": "2003-02-28"
  },
  "summary": "GOOGLE IRELAND LIMITED (active, Companies Registration Office (Ireland) 368047): verdict pass, nothing flagged.",
  "verdict": "pass",
  "other_matches": [
   {
    "name": "GOOGLE IRELAND HOLDINGS UNLIMITED COMPANY",
    "status": "active",
    "country": "IE",
    "registry_id": "369511"
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/factline-kyb-company-check-96fffe94/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from factline.dev](https://www.zero.xyz/host/factline.dev/llms.txt)