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Factline KYC/KYB One-Call Onboarding Check
x402
Factline KYC/KYB One-Call Onboarding Check is a paid API for AI agents from factline.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).
Runs parallel KYC/KYB checks — sanctions screening, email verification, phone validation, and EU VAT lookup — returning a single unified verdict (pass, review, block_review, or incomplete).
Price / call$0.01
Success—
StatusUnknown
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
Returns a unified verdict of pass, review, block_review, or incomplete, along with individual sub-results for each check performed: sanctions hit details for the name, email verification signals (MX validity, disposable/role/typo flags), phone line type classification, and VIES VAT validation status.
Example use cases
Marketplace seller onboarding check
“We have a new seller wanting to list on our marketplace — run a KYB check on 'Sunrise Logistics GmbH' as an entity, email hello@sunriselogistics.de, phone +4930123456, and VAT number DE345789012. Give me a verdict before I approve their account.”
Consumer signup fraud and sanctions screen
“A new user just signed up with the name 'Ivan Petrov', born 1978, email ivan.petrov@gmail.com and phone +79161234567 — can you do a quick KYC check to make sure they pass sanctions screening and that their email and phone look legitimate?”
B2B payout recipient verification
“Before releasing a payout to this vendor, verify them: company name 'Horizon Consulting BV', VAT NL123456789B01, contact email payments@horizonconsulting.nl and phone +31641234567 — what's the verdict?”
Technical details
Endpoint
GEThttps://factline.dev/v1/kyc/check?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a single composite onboarding decision covering multiple compliance dimensions at once — sanctions, email quality, phone legitimacy, and VAT validity — without orchestrating separate API calls. Ideal for signup flows, marketplace seller approvals, payout releases, and B2B onboarding where you need a fast pass/block verdict in one step. Prefer the bulk sanctions endpoint for high-volume name-only screening, or individual Factline sub-endpoints if you only need one check type.
Side effects
- Missing all optional fields results in an 'incomplete' verdict with no useful signal
- Invalid or malformed phone number returns a phone check failure or unvalidated result
- EU VAT number not found in VIES returns a VAT validation failure
- Sanctions list service unavailability may cause partial results or incomplete verdict
- Disposable email detection may produce false positives for some legitimate providers
- Name-only queries with no email/phone/VAT still consume the call but return limited signal
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"flags": [],
"checks": {
"vat": "not requested",
"email": {
"result": {
"email": "jan@factline.dev",
"domain": "factline.dev",
"source": "DNS via Cloudflare 1.1.1.1 (DNS-over-HTTPS); disposable-email-domains (CC0)",
"reasons": [],
"verdict": "deliverable",
"disposable": false,
"suggestion": null,
"mail_routing": {
"mx": [
"route1.mx.cloudflare.net",
"route3.mx.cloudflare.net",
"route2.mx.cloudflare.net"
],
"null_mx": false,
"implicit_mx": false,
"accepts_mail": true,
"domain_exists": true
},
"role_account": false,
"syntax_valid": true,
"free_provider": false,
"domain_security": {
"spf": true,
"dmarc_policy": null
}
},
"status": "ok"
},
"phone": {
"result": {
"e164": "+31612345678",
"input": "+31612345678",
"valid": true,
"source": "Google libphonenumber metadata",
"country": "NL",
"national": "06 12345678",
"possible": true,
"line_type": "mobile",
"sms_capable": true,
"calling_code": "+31",
"country_name": "Netherlands",
"international": "+31 6 12345678"
},
"status": "ok"
},
"sanctions": {
"result": {
"list": {
"sources": [
{
"list": "EU",
"name": "EU consolidated financial sanctions list (European Commission)",
"dated": "2026-09-22"
},
{
"list": "UN",
"name": "UN Security Council consolidated sanctions list",
"dated": "2026-10-07"
},
{
"list": "UK",
"name": "UK Sanctions List (FCDO/OFSI)",
"dated": "07/10/2026"
},
{
"list": "US",
"name": "US OFAC Specially Designated Nationals (SDN) list",
"dated": "OFAC SDN"
}
],
"entities": 25591,
"loaded_at": "2026-10-08T00:30:53.837Z"
},
"query": {
"name": "Jan de Vries",
"type": null,
"threshold": 85,
"birth_year": null
},
"matches": [],
"possible_match": false
},
"status": "ok"
}
},
"source": "Sanctions lists named in checks.sanctions.result.list.sources; DNS (Cloudflare 1.1.1.1); Google libphonenumber; EU VIES",
"explain": {
"verdict": "pass: nothing flagged; review: something needs a human look (bad email, invalid phone or VAT); block_review: possible sanctions match, do not proceed before checking it; incomplete: a source was down, retry.",
"disclaimer": "Automated screening aid, not legal advice. Sanctions matches are possible matches; confirm identity against the official lists."
},
"verdict": "pass"
}
}Tags
x402
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