Free BIN, issuer, MCC and decline code lookups for card payments (Visa, Mastercard, Stripe, Adyen).
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BIN / IIN lookup (card BIN checker). Returns the card network (Visa, Mastercard, Amex and others), card type (credit, debit, prepaid), card level, issuing bank and country for the first 6 to 8 digits of a card number. Use it to identify a card or where it was issued. Never pass a full card number.
The first 6 to 8 digits of a card number (the BIN / IIN). Digits only. Never send a full card number.
Pick your client. Values in capitals, like YOUR_TOKEN, are yours to fill in.
claude mcp add --transport http payment-tools https://tools.mcp.smartretry.com/mcp
BIN / IIN lookup (card BIN checker). Returns the card network (Visa, Mastercard, Amex and others), card type (credit, debit, prepaid), card level, issuing bank and country for the first 6 to 8 digits of a card number. Use it to identify a card or where it was issued. Never pass a full card number.
| Argument | Type | Description |
|---|---|---|
| bin* | string | The first 6 to 8 digits of a card number (the BIN / IIN). Digits only. Never send a full card number. |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"bin"
],
"properties": {
"bin": {
"type": "string",
"pattern": "^\\d{6,8}$",
"description": "The first 6 to 8 digits of a card number (the BIN / IIN). Digits only. Never send a full card number."
}
},
"additionalProperties": false
}Explain why a card payment was declined or failed. Accepts a decline code, response code, refusal reason or error message (for example "51", "05", "do_not_honor" or "insufficient funds") from card networks and processors such as Visa, Mastercard, Stripe and Adyen. Optionally narrow by provider.
| Argument | Type | Description |
|---|---|---|
| code* | string | A decline code or message, for example "51", "05", "do_not_honor" or "insufficient funds". |
| provider | string | Optional provider or card network to narrow the result, for example "Visa", "Mastercard" or "Stripe". |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"code"
],
"properties": {
"code": {
"type": "string",
"maxLength": 100,
"minLength": 1,
"description": "A decline code or message, for example \"51\", \"05\", \"do_not_honor\" or \"insufficient funds\"."
},
"provider": {
"type": "string",
"maxLength": 50,
"description": "Optional provider or card network to narrow the result, for example \"Visa\", \"Mastercard\" or \"Stripe\"."
}
},
"additionalProperties": false
}Find card issuing banks by name, with their country, website and phone number. Accepts partial or misspelled names. Use it to confirm the bank behind a card or to find how to contact an issuer.
| Argument | Type | Description |
|---|---|---|
| name* | string | Issuing bank name or part of it, for example "chase" or "Barclays". |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"name"
],
"properties": {
"name": {
"type": "string",
"maxLength": 100,
"minLength": 2,
"description": "Issuing bank name or part of it, for example \"chase\" or \"Barclays\"."
}
},
"additionalProperties": false
}Merchant category code (MCC) lookup. Pass a 4-digit MCC for its full definition (category group, high-risk flag, Visa and Mastercard definitions), or describe a business (for example "grocery store" or "software") to find the matching MCC.
| Argument | Type | Description |
|---|---|---|
| query* | string | A 4-digit merchant category code (for example "5411") or a business type (for example "grocery"). |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"query"
],
"properties": {
"query": {
"type": "string",
"maxLength": 100,
"minLength": 2,
"description": "A 4-digit merchant category code (for example \"5411\") or a business type (for example \"grocery\")."
}
},
"additionalProperties": false
}We read every tool's name, description and inputs the way the model will, looking for instructions hidden from you. A clean result means no warning signs, not a guarantee. Scanned Nov 3, 2026.