Merchant Check (KYB facts)
Merchant check (KYB facts) before an agent pays: give a merchant's domain and optionally its company name, get neutral sourced facts in one call for merchant verification and vendor due diligence: domain registration date and age, expiry and registrar (registry RDAP), DNS and SPF/DMARC email-auth, an OFAC sanctions screen of the name, GLEIF LEI match and SEC EDGAR match. No risk score or fraud verdict. Signed receipt.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
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.
{
"error": "PAYMENT-SIGNATURE header is required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"invoiceId": "1792707966-9ae1c1765ee34ee8-d9451-52e799aa7159038f94896b46"
},
"payTo": "0x39BF4378b74f9E19c5113b00b01f57d94537bad1",
"amount": "12000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
},
{
"asset": "XRP",
"extra": {
"invoiceId": "1792707966-9ae1c1765ee34ee8-d9451-52e799aa7159038f94896b46",
"sourceTag": 26100013
},
"payTo": "r3BsahzSMtF4HiJuL8HMf1se6T1JtMB6hg",
"amount": "9451",
"scheme": "exact",
"network": "xrpl:0",
"maxTimeoutSeconds": 600
},
{
"asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
"extra": {
"name": "USDC",
"version": "2",
"invoiceId": "1792707966-9ae1c1765ee34ee8-d9451-52e799aa7159038f94896b46"
},
"payTo": "0x3177FA489523ddF60f293898f7Ee5912576f3d9b",
"amount": "12000",
"scheme": "exact",
"network": "eip155:84532",
"maxTimeoutSeconds": 600
},
{
"asset": "XRP",
"extra": {
"invoiceId": "1792707966-9ae1c1765ee34ee8-d9451-52e799aa7159038f94896b46",
"sourceTag": 26100013
},
"payTo": "rDbkEYdqLHcnWAHAVFwhH6KM6puCPbXNgs",
"amount": "9451",
"scheme": "exact",
"network": "xrpl:1",
"maxTimeoutSeconds": 600
}
],
"resource": {
"url": "https://api.stablecoingateways.com/v1/merchant-check",
"tags": [
"merchant-check",
"kyb",
"sanctions",
"whois",
"counterparty"
],
"mimeType": "application/json",
"description": "Merchant check before an agent pays: give a merchant's domain and (optionally) its company name, get neutral sourced facts in one call: domain registration date and age, expiry and registrar (registry RDAP), DNS and SPF/DMARC email-auth, an OFAC sanctions screen of the name, GLEIF LEI match and SEC EDGAR match. No risk score or fraud verdict. Signed receipt.",
"serviceName": "Merchant Check (KYB facts)"
},
"extensions": {
"docs": "https://api.stablecoingateways.com/openapi.json",
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"name": "Apple Inc.",
"domain": "apple.com"
}
},
"output": {
"type": "json",
"example": {
"data": {
"lei": {
"query": "Apple Inc.",
"checked": true,
"records": [
{}
],
"total_matches": 24,
"country_filter": null
},
"sec": {
"cik": "0000320193",
"name": "Apple Inc.",
"checked": true,
"matched": true,
"tickers": [
"AAPL"
]
},
"facts": [
{
"fact": "apple.com was first registered on 1987-02-19 (39.7 years ago).",
"source": "Registry RDAP (https://rdap.verisign.com/com/v1/)"
}
],
"query": {
"lei": null,
"name": "Apple Inc.",
"domain": "apple.com",
"ticker": null,
"country": null
},
"domain": {
"domain": "apple.com",
"exists": true,
"expires": "2027-02-20",
"age_years": 39.7,
"registered": "1987-02-19"
},
"notice": "Neutral facts with sources. Not a risk score, fraud verdict or compliance determination...",
"sources": [
"Registry RDAP via IANA bootstrap"
],
"sanctions": {
"query": "Apple Inc.",
"matches": [],
"screened": true,
"min_score": 0.85,
"match_count": 0
},
"checked_at": "2026-10-22T20:30:47.611Z",
"name_domain_link": "Not verified: no public registry in this check links a company name to a domain. Treat ..."
},
"receipt": {
"v": 1,
"ts": "2026-10-22T09:00:00Z",
"sig": "hex",
"price": {
"asset": "USDC",
"amount": "12000",
"network": "eip155:84532"
},
"log_seq": 1,
"tx_hash": "0x..",
"endpoint_id": "merchant-check-v1",
"request_hash": "hex",
"response_hash": "hex"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"queryParams": {
"type": "object",
"required": [
"domain"
],
"properties": {
"lei": {
"type": "string",
"pattern": "^[A-Za-z0-9]{18}[0-9]{2}$",
"description": "Optional 20-character LEI (instead of a GLEIF name search)"
},
"name": {
"type": "string",
"maxLength": 120,
"minLength": 2,
"description": "Company legal or trading name; screens OFAC (entities only), GLEIF LEI and SEC"
},
"domain": {
"type": "string",
"pattern": "^[A-Za-z0-9.-]{3,253}$",
"description": "Merchant domain or hostname (required)"
},
"ticker": {
"type": "string",
"pattern": "^[A-Za-z0-9.-]{1,10}$",
"description": "Optional US stock ticker for the SEC match"
},
"country": {
"type": "string",
"pattern": "^[A-Za-z]{2}$",
"description": "Optional ISO 3166 alpha-2 country filter for LEI matches"
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data",
"receipt"
],
"properties": {
"data": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"lei": {
"type": "object",
"properties": {
"query": {
"type": "string"
},
"checked": {
"type": "boolean"
},
"records": {
"type": "array",
"items": {
"type": "object"
}
},
"total_matches": {
"type": "integer"
},
"country_filter": {}
}
},
"sec": {
"type": "object",
"properties": {
"cik": {
"type": "string"
},
"name": {
"type": "string"
},
"checked": {
"type": "boolean"
},
"matched": {
"type": "boolean"
},
"tickers": {
"type": "array",
"items": {
"type": "string"
}
},
"exchanges": {
"type": "array",
"items": {
"type": "string"
}
},
"sic_description": {
"type": "string"
},
"latest_annual_report": {},
"state_of_incorporation": {
"type": "string"
}
}
},
"facts": {
"type": "array",
"items": {
"type": "object"
}
},
"query": {
"type": "object",
"properties": {
"lei": {},
"name": {
"type": "string"
},
"domain": {
"type": "string"
},
"ticker": {},
"country": {}
}
},
"domain": {
"type": "object",
"properties": {
"dns": {
"type": "object"
},
"https": {
"type": "object"
},
"domain": {
"type": "string"
},
"exists": {
"type": "boolean"
},
"expires": {
"type": "string"
},
"age_years": {
"type": "number"
},
"mail_auth": {
"type": "object"
},
"registrar": {
"type": "string"
},
"registered": {
"type": "string"
},
"rdap_available": {
"type": "boolean"
},
"registry_status": {
"type": "array",
"items": {
"type": "string"
}
}
}
},
"notice": {
"type": "string"
},
"sources": {
"type": "array",
"items": {
"type": "string"
}
},
"sanctions": {
"type": "object",
"properties": {
"lists": {
"type": "array",
"items": {
"type": "object"
}
},
"query": {
"type": "string"
},
"scope": {
"type": "string"
},
"matches": {
"type": "array",
"items": {}
},
"screened": {
"type": "boolean"
},
"min_score": {
"type": "number"
},
"confirm_at": {
"type": "string"
},
"match_count": {
"type": "integer"
}
}
},
"checked_at": {
"type": "string"
},
"name_domain_link": {
"type": "string"
}
}
},
"receipt": {
"type": "object",
"required": [
"v",
"endpoint_id",
"ts",
"price",
"tx_hash",
"request_hash",
"response_hash",
"log_seq",
"sig"
],
"description": "Ed25519-signed receipt; verify free at POST /v1/verify-receipt"
}
}
}
}
}
}
}
},
"params": {
"lei": "optional 20-char LEI",
"name": "company legal or trading name (screens OFAC, GLEIF, SEC)",
"domain": "merchant domain, e.g. example.com (required)",
"ticker": "optional US ticker",
"country": "optional ISO 3166 alpha-2 filter for LEI"
},
"source": "Registry RDAP via IANA bootstrap; DNS via Cloudflare DoH; official OFAC SDN + Consolidated lists (US Treasury); GLEIF (CC0); SEC EDGAR (public). Same engines as /v1/whois, /v1/sanctions/screen, /v1/lei and /v1/sec/company-facts",
"status": "https://api.stablecoingateways.com/status",
"receipts": "https://api.stablecoingateways.com/v1/verify-receipt",
"price_usd": "0.012",
"xrp_quote": {
"usd": "0.012",
"note": "XRP amount = ceil(USD / quote x 1e6 x (1+margin)); bound into the invoice MAC",
"age_s": 0,
"state": "fresh",
"source": "coinbase:XRP-USD spot",
"available": true,
"max_age_s": 900,
"quoted_at": "2026-10-22T22:16:06.876Z",
"xrp_drops": "9451",
"margin_pct": 3,
"usd_per_xrp": 1.3079
}
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
Pay 0.01 USDC on Base to 0x39BF…7bad1. The signed payment is good for 10 minutes.
- Paid to
- 0x39BF…7bad1
- USD Coin contract
- 0x8335…02913
- Payment window
- 10 minutes
- As published
- 10000 smallest units
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- r3Bsah…MB6hg
- Token contract
- XRP
- Payment window
- 10 minutes
Pay 0.01 USDC on Base Sepolia to 0x3177…f3d9b. The signed payment is good for 10 minutes.
- Paid to
- 0x3177…f3d9b
- USD Coin (Base Sepolia) contract
- 0x036C…dCF7e
- Payment window
- 10 minutes
- As published
- 10000 smallest units
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- rDbkEY…bXNgs
- Token contract
- XRP
- Payment window
- 10 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"invoiceId": "1793023135-3dfa927bfdd54a4c-d8016-cc3aaf1e1d6cbe0d9e2c6d31"
},
"payTo": "0x39BF4378b74f9E19c5113b00b01f57d94537bad1",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
},
{
"asset": "XRP",
"extra": {
"invoiceId": "1793023135-3dfa927bfdd54a4c-d8016-cc3aaf1e1d6cbe0d9e2c6d31",
"sourceTag": 26100013
},
"payTo": "r3BsahzSMtF4HiJuL8HMf1se6T1JtMB6hg",
"amount": "8016",
"scheme": "exact",
"network": "xrpl:0",
"maxTimeoutSeconds": 600
},
{
"asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
"extra": {
"name": "USDC",
"version": "2",
"invoiceId": "1793023135-3dfa927bfdd54a4c-d8016-cc3aaf1e1d6cbe0d9e2c6d31"
},
"payTo": "0x3177FA489523ddF60f293898f7Ee5912576f3d9b",
"amount": "10000",
"scheme": "exact",
"network": "eip155:84532",
"maxTimeoutSeconds": 600
},
{
"asset": "XRP",
"extra": {
"invoiceId": "1793023135-3dfa927bfdd54a4c-d8016-cc3aaf1e1d6cbe0d9e2c6d31",
"sourceTag": 26100013
},
"payTo": "rDbkEYdqLHcnWAHAVFwhH6KM6puCPbXNgs",
"amount": "8016",
"scheme": "exact",
"network": "xrpl:1",
"maxTimeoutSeconds": 600
}
]Extensions
{
"docs": "https://api.stablecoingateways.com/openapi.json",
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"name": "Apple Inc.",
"domain": "apple.com"
}
},
"output": {
"type": "json",
"example": {
"data": {
"lei": {
"query": "Apple Inc.",
"checked": true,
"records": [
{}
],
"total_matches": 24,
"country_filter": null
},
"sec": {
"cik": "0000320193",
"name": "Apple Inc.",
"checked": true,
"matched": true,
"tickers": [
"AAPL"
]
},
"facts": [
{
"fact": "apple.com was first registered on 1987-02-19 (39.7 years ago).",
"source": "Registry RDAP (https://rdap.verisign.com/com/v1/)"
}
],
"query": {
"lei": null,
"name": "Apple Inc.",
"domain": "apple.com",
"ticker": null,
"country": null
},
"domain": {
"domain": "apple.com",
"exists": true,
"expires": "2027-02-20",
"age_years": 39.7,
"registered": "1987-02-19"
},
"notice": "Neutral facts with sources. Not a risk score, fraud verdict or compliance determination...",
"sources": [
"Registry RDAP via IANA bootstrap"
],
"sanctions": {
"query": "Apple Inc.",
"matches": [],
"screened": true,
"min_score": 0.85,
"match_count": 0
},
"checked_at": "2026-10-22T20:30:47.611Z",
"provenance": {
"facts": [
{
"id": "domain.dns",
"fact": "apple.com resolves in DNS; MX records published; SPF present; DMARC...",
"limits": [
"One resolver and one vantage point; DNS can cha..."
],
"source": "DNS via Cloudflare DNS-over-HTTPS (cloudflare-dns.com)",
"source_url": "https://cloudflare-dns.com/dns-query?name=apple.com",
"retrieved_at": "2026-10-24T10:19:59.759Z",
"source_as_of": null
}
],
"schema": "sg-provenance/1",
"evidence_only": true,
"data_timestamp": "2026-10-24T10:17:39.710Z"
},
"name_domain_link": "Not verified: no public registry in this check links a company name to a domain. Treat ..."
},
"receipt": {
"v": 1,
"ts": "2026-10-22T09:00:00Z",
"sig": "hex",
"price": {
"asset": "USDC",
"amount": "10000",
"network": "eip155:84532"
},
"log_seq": 1,
"tx_hash": "0x..",
"evidence": {
"terms_hash": "<sha256>",
"validation": "input=pass;freshness=pass;output=pass;provenance=pass",
"terms_version": "<label>",
"data_timestamp": "2026-10-24T09:00:00Z",
"provenance_hash": "<sha256>",
"service_version": "<version>"
},
"endpoint_id": "merchant-check-v1",
"request_hash": "hex",
"response_hash": "hex"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"queryParams": {
"type": "object",
"required": [
"domain"
],
"properties": {
"lei": {
"type": "string",
"pattern": "^[A-Za-z0-9]{18}[0-9]{2}$",
"description": "Optional 20-character LEI (instead of a GLEIF name search)"
},
"name": {
"type": "string",
"maxLength": 120,
"minLength": 2,
"description": "Company legal or trading name; screens OFAC (entities only), GLEIF LEI and SEC"
},
"domain": {
"type": "string",
"pattern": "^[A-Za-z0-9.-]{3,253}$",
"examples": [
"apple.com"
],
"description": "Merchant domain or hostname (required)"
},
"ticker": {
"type": "string",
"pattern": "^[A-Za-z0-9.-]{1,10}$",
"description": "Optional US stock ticker for the SEC match"
},
"country": {
"type": "string",
"pattern": "^[A-Za-z]{2}$",
"description": "Optional ISO 3166 alpha-2 country filter for LEI matches"
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"data",
"receipt"
],
"properties": {
"data": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"lei": {
"type": "object",
"properties": {
"query": {
"type": "string"
},
"checked": {
"type": "boolean"
},
"records": {
"type": "array",
"items": {
"type": "object"
}
},
"total_matches": {
"type": "integer"
},
"country_filter": {}
}
},
"sec": {
"type": "object",
"properties": {
"cik": {
"type": "string"
},
"name": {
"type": "string"
},
"checked": {
"type": "boolean"
},
"matched": {
"type": "boolean"
},
"tickers": {
"type": "array",
"items": {
"type": "string"
}
},
"exchanges": {
"type": "array",
"items": {
"type": "string"
}
},
"sic_description": {
"type": "string"
},
"latest_annual_report": {},
"state_of_incorporation": {
"type": "string"
}
}
},
"facts": {
"type": "array",
"items": {
"type": "object"
}
},
"query": {
"type": "object",
"properties": {
"lei": {},
"name": {
"type": "string"
},
"domain": {
"type": "string"
},
"ticker": {},
"country": {}
}
},
"domain": {
"type": "object",
"properties": {
"dns": {
"type": "object"
},
"https": {
"type": "object"
},
"domain": {
"type": "string"
},
"exists": {
"type": "boolean"
},
"expires": {
"type": "string"
},
"age_years": {
"type": "number"
},
"mail_auth": {
"type": "object"
},
"registrar": {
"type": "string"
},
"registered": {
"type": "string"
},
"rdap_available": {
"type": "boolean"
},
"registry_status": {
"type": "array",
"items": {
"type": "string"
}
}
}
},
"notice": {
"type": "string"
},
"sources": {
"type": "array",
"items": {
"type": "string"
}
},
"sanctions": {
"type": "object",
"properties": {
"lists": {
"type": "array",
"items": {
"type": "object"
}
},
"query": {
"type": "string"
},
"scope": {
"type": "string"
},
"matches": {
"type": "array",
"items": {}
},
"screened": {
"type": "boolean"
},
"min_score": {
"type": "number"
},
"confirm_at": {
"type": "string"
},
"match_count": {
"type": "integer"
}
}
},
"checked_at": {
"type": "string"
},
"provenance": {
"type": "object",
"description": "Additive evidence block (sg-provenance/1): per-fact source, retrieval time, limits; no score or verdict. Full schema in OpenAPI."
},
"name_domain_link": {
"type": "string"
}
},
"description": "Sourced facts[] plus domain, sanctions (OFAC), lei and sec sections for a merchant; no score or verdict"
},
"receipt": {
"type": "object",
"required": [
"v",
"endpoint_id",
"ts",
"price",
"tx_hash",
"request_hash",
"response_hash",
"log_seq",
"sig"
],
"properties": {
"evidence": {
"type": "object",
"description": "Signed evidence (see llms.txt)"
}
},
"description": "Ed25519-signed receipt; verify free at POST /v1/verify-receipt. New receipts also carry a signed `evidence` object."
}
}
}
}
}
}
}
},
"params": {
"lei": "optional 20-char LEI",
"name": "company legal or trading name (screens OFAC, GLEIF, SEC)",
"domain": "merchant domain, e.g. example.com (required)",
"ticker": "optional US ticker",
"country": "optional ISO 3166 alpha-2 filter for LEI"
},
"source": "Registry RDAP via IANA bootstrap; DNS via Cloudflare DoH; official OFAC SDN + Consolidated lists (US Treasury); GLEIF (CC0); SEC EDGAR (public). Same engines as /v1/whois, /v1/sanctions/screen, /v1/lei and /v1/sec/company-facts",
"status": "https://api.stablecoingateways.com/status",
"receipts": "https://api.stablecoingateways.com/v1/verify-receipt",
"price_usd": "0.01",
"xrp_quote": {
"usd": "0.01",
"note": "XRP amount = ceil(USD / quote x 1e6 x (1+margin)); bound into the invoice MAC",
"age_s": 0,
"state": "fresh",
"source": "xrpl:amm XRP/RLUSD (RLUSD=1 USD) ledger 107916437",
"available": true,
"max_age_s": 900,
"quoted_at": "2026-10-26T13:48:55.746Z",
"xrp_drops": "8016",
"margin_pct": 3,
"usd_per_xrp": 1.284951
}
}Provenance
- Seen in the source catalog
- 2026-10-26 13:48Z
- Last indexed by Roundhouse
- 2026-10-27 01:20Z
- Last enriched (probe, favicon, geo)
- 2026-10-22 22:16Z
- x402 version
- 2
- Max timeout
- 600s
- Liveness probe
- HTTP 402
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. 4 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service Merchant Check (KYB facts) 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=Merchant%20Check%20(KYB%20facts)' 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://api.stablecoingateways.com/v1/merchant-check, 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. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.