Counterparty Check
Check a payee before your agent pays: sanctions, lookalike domains, payment details, invoice fraud.
使うべきか
品質と安全性
A
ツール定義とプロトコルへの準拠に関する自動分析に基づいています。
コンテキストコスト
~1,293トークン数（ツール定義）
~3.2 KB一般的なレスポンスサイズ
注意への影響は中程度（128k コンテキストの 1.01%）
これは、サーバーのツールがモデルのコンテキストに読み込まれるたびに消費されるおおよそのトークン数です。数が多いほど、ほかのタスクに使える注意が減ります。
インストール
ワンクリックインストール
これを `claude_desktop_config.json` ファイルに追加してください:
{
"mcpServers": {
"counterparty-check": {
"url": "https://counterparty-check-production.up.railway.app/mcp"
}
}
}リモートエンドポイント
https://counterparty-check-production.up.railway.app/mcpstreamable-httphttps://counterpartycheck.com/mcpstreamable-httpできること
ツール一覧
ツール（4）
🟢 読み取り専用🟡 書き込み🔴 削除⚪ 不明
🟢check_counterparty(counterparty, payment, context)
Run a full pre-payment risk check on a payee: OFAC sanctions (names and wallets), domain age and email authentication, lookalike domains (vendor impersonation, brand typo-squats, executive impersonation), routing/IBAN/SWIFT/wallet validation, and business-email-compromise signals. Returns verdict proceed/review/block, a 0-100 risk score, explained findings, and a signed receipt. Costs $0.25 from the API key balance. Fill in "context" with everything you know about how the payment request arrived; it materially improves fraud detection.
入力スキーマ
{
"type": "object",
"properties": {
"counterparty": {
"type": "object",
"required": [
"name"
],
"properties": {
"name": {
"type": "string",
"description": "Legal or trading name of the payee",
"maxLength": 200
},
"country": {
"type": "string",
"description": "ISO 3166-1 alpha-2 code or country name",
"maxLength": 60
},
"website": {
"type": "string",
"description": "Payee website domain or URL",
"maxLength": 300
},
"email": {
"type": "string",
"description": "Email address the payee invoices or writes from",
"maxLength": 254
},
"address": {
"type": "string",
"description": "Payee street address",
"maxLength": 500
}
}
},
"payment": {
"type": "object",
"properties": {
"method": {
"type": "string",
"enum": [
"ach",
"wire",
"card",
"crypto",
"check",
"other"
]
},
"routing_number": {
"type": "string",
"description": "US ABA routing number"
},
"iban": {
"type": "string"
},
"swift_bic": {
"type": "string"
},
"crypto_address": {
"type": "string",
"description": "Receiving wallet address"
},
"crypto_network": {
"type": "string",
"description": "e.g. base, ethereum, solana, bitcoin, tron"
},
"amount": {
"type": "number",
"minimum": 0
},
"currency": {
"type": "string"
}
}
},
"context": {
"type": "object",
"description": "What the paying agent knows about how this payment came about. Each field sharpens fraud detection.",
"properties": {
"first_payment_to_payee": {
"type": "boolean"
},
"bank_details_changed": {
"type": "boolean",
"description": "The payee asked to change where money goes"
},
"change_requested_via": {
"type": "string",
"enum": [
"email",
"phone",
"portal",
"in_person",
"chat",
"other"
]
},
"requested_urgency": {
"type": "boolean",
"description": "The request pressed for fast payment"
},
"requester_email": {
"type": "string",
"description": "Who asked for this payment"
},
"known_good_domain": {
"type": "string",
"description": "The vendor's domain on file from past dealings"
},
"payer_domain": {
"type": "string",
"description": "Your own company's domain, to catch internal impersonation"
},
"previous_payment": {
"type": "object",
"description": "Details used for the last payment to this payee, to detect changes",
"properties": {
"routing_number": {
"type": "string"
},
"iban": {
"type": "string"
},
"crypto_address": {
"type": "string"
}
}
}
}
}
},
"required": [
"counterparty"
]
}🟢screen_sanctions(counterparty, payment, context)
Screen a payee name (and optional crypto wallet) against OFAC sanctions lists and embargoed jurisdictions. Faster and cheaper than check_counterparty but does not detect fraud patterns. Costs $0.05 from the API key balance; without a key, the first 3 screens each day are free.
入力スキーマ
{
"type": "object",
"properties": {
"counterparty": {
"type": "object",
"required": [
"name"
],
"properties": {
"name": {
"type": "string",
"description": "Legal or trading name of the payee",
"maxLength": 200
},
"country": {
"type": "string",
"description": "ISO 3166-1 alpha-2 code or country name",
"maxLength": 60
},
"website": {
"type": "string",
"description": "Payee website domain or URL",
"maxLength": 300
},
"email": {
"type": "string",
"description": "Email address the payee invoices or writes from",
"maxLength": 254
},
"address": {
"type": "string",
"description": "Payee street address",
"maxLength": 500
}
}
},
"payment": {
"type": "object",
"properties": {
"method": {
"type": "string",
"enum": [
"ach",
"wire",
"card",
"crypto",
"check",
"other"
]
},
"routing_number": {
"type": "string",
"description": "US ABA routing number"
},
"iban": {
"type": "string"
},
"swift_bic": {
"type": "string"
},
"crypto_address": {
"type": "string",
"description": "Receiving wallet address"
},
"crypto_network": {
"type": "string",
"description": "e.g. base, ethereum, solana, bitcoin, tron"
},
"amount": {
"type": "number",
"minimum": 0
},
"currency": {
"type": "string"
}
}
},
"context": {
"type": "object",
"description": "What the paying agent knows about how this payment came about. Each field sharpens fraud detection.",
"properties": {
"first_payment_to_payee": {
"type": "boolean"
},
"bank_details_changed": {
"type": "boolean",
"description": "The payee asked to change where money goes"
},
"change_requested_via": {
"type": "string",
"enum": [
"email",
"phone",
"portal",
"in_person",
"chat",
"other"
]
},
"requested_urgency": {
"type": "boolean",
"description": "The request pressed for fast payment"
},
"requester_email": {
"type": "string",
"description": "Who asked for this payment"
},
"known_good_domain": {
"type": "string",
"description": "The vendor's domain on file from past dealings"
},
"payer_domain": {
"type": "string",
"description": "Your own company's domain, to catch internal impersonation"
},
"previous_payment": {
"type": "object",
"description": "Details used for the last payment to this payee, to detect changes",
"properties": {
"routing_number": {
"type": "string"
},
"iban": {
"type": "string"
},
"crypto_address": {
"type": "string"
}
}
}
}
}
},
"required": [
"counterparty"
]
}🟢check_balance
Show the remaining prepaid balance on the API key used for this connection. Free.
入力スキーマ
{
"type": "object",
"properties": {}
}🟢verify_receipt(receipt)
Confirm that a receipt returned by a previous check is authentic and unaltered. Free.
入力スキーマ
{
"type": "object",
"properties": {
"receipt": {
"type": "object",
"description": "The full \"receipt\" object from a check response"
}
},
"required": [
"receipt"
]
}コミュニティ
エビデンス
最近の観測
検証済みバージョンは記録されていませんツール 4 件
検証済みバージョンは記録されていませんツール 4 件