Counterparty check (KYB preflight) in one call
Counterparty check (KYB preflight) in one call: give any of a company name, domain, LEI or crypto wallet address (plus an optional EU VAT number), get neutral sourced facts for vendor onboarding and supplier due diligence: sanctions screen of the name on OFAC, EU and UK lists with UN designations flagged, OFAC wallet check, GLEIF LEI match and status, domain age, registrar and email-auth, and an EU VAT number format check. No risk score or verdict. Signed receipt.
Answeringour last check, 2026-10-24
1 of 1checks answered this week
264 msmedian answer time
$0.01listed price per call
$0.01price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://api.stablecoingateways.com/v1/counterparty-check
| Category | Company and compliance |
|---|---|
| Provider host | api.stablecoingateways.com |
| Networks | eip155:8453, eip155:84532, xrpl:0, xrpl:1 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-24 | valid payment request | 402 | $0.01 | 264 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"domain": "siemens.com",
"name": "Siemens Aktiengesellschaft",
"vat": "DE129274202"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"headers": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"properties": {
"address": {
"description": "Crypto wallet address to check against OFAC-listed addresses",
"maxLength": 120,
"minLength": 20,
"type": "string"
},
"country": {
"description": "ISO 3166 alpha-2 country filter for LEI matches",
"pattern": "^[A-Za-z]{2}$",
"type": "string"
},
"domain": {
"description": "Company domain: registration age, registrar, DNS and email-auth facts",
"examples": [
"siemens.com"
],
"pattern": "^[A-Za-z0-9.-]{3,253}$",
"type": "string"
},
"lei": {
"description": "20-character LEI (instead of a GLEIF name search)",
"pattern": "^[A-Za-z0-9]{18}[0-9]{2}$",
"type": "string"
},
"name": {
"description": "Company legal or trading name: screened on OFAC, EU and UK sanctions lists (entities only) and matched in GLEIF",
"examples": [
"Siemens Aktiengesellschaft"
],
"maxLength": 120,
"minLength": 2,
"type": "string"
},
"vat": {
"description": "EU VAT number with 2-letter country prefix (EL for Greece, XI for Northern Ireland); format check only, not a VIES registration check",
"examples": [
"DE129274202"
],
"maxLength": 24,
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"data": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"description": "Sourced facts[] plus sanctions, wallet, lei, domain and vat sections; each section says whether it was checked and why not",
"properties": {
"checked_at": {
"type": "string"
},
"domain": {
"properties": {
"age_years": {
"type": "number"
},
"checked": {
"type": "boolean"
},
"dns": {
"type": "object"
},
"domain": {
"type": "string"
},
"exists": {
"type": "boolean"
},
"expires": {
"type": "string"
},
"https": {
"type": "object"
},
"mail_auth": {
"type": "object"
},
"rdap_available": {
"type": "boolean"
},
"registered": {
"type": "string"
},
"registrar": {
"type": "string"
},
"registry_status": {
"items": {
"type": "string"
},
"type": "array"
}
},
"type": "object"
},
"facts": {
"items": {
"type": "object"
},
"type": "array"
},
"lei": {
"properties": {
"checked": {
"type": "boolean"
},
"country_filter": {},
"query": {
"type": "string"
},
"records": {
"items": {
"type": "object"
},
"type": "array"
},
"total_matches": {
"type": "integer"
}
},
"type": "object"
},
"name_links": {
"type": "string"
},
"notice": {
"type": "string"
},
"query": {
"properties": {
"address": {},
"country": {},
"domain": {
"type": "string"
},
"lei": {},
"name": {
"type": "string"
},
"vat": {
"type": "string"
}
},
"type": "object"
},
"sanctions": {
"properties": {
"confirm_at": {
"items": {
"type": "string"
},
"type": "array"
},
"lists": {