Credit Card Validate MCP tool

MCP findutils:credit_card_validate

Validate a credit card number with the Luhn checksum and detect the brand.

Needs an API key. Running a tool needs an API key. Keys are not for sale yet: ask for early access. About API keys

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Arguments

application/json

number

string required

Card number (spaces/dashes OK).

Example arguments

Verified

{
  "number": "4111111111111111"
}

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claude mcp add findutils --transport http https://mcp.findutils.com/ --header "Authorization: Bearer YOUR_API_KEY"

{
  "mcpServers": {
    "findutils": {
      "url": "https://mcp.findutils.com/",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

curl -X POST https://mcp.findutils.com/ \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "tools/call",
    "params": {
      "name": "credit_card_validate",
      "arguments": {
        "number": "4111111111111111"
      }
    }
  }'

Also a REST endpoint

The same tool answers plain HTTP at POST /api/tools/credit-card-validate/execute.

REST reference

Rate limit: 120 a minute, per IP
Auth: API key
REST id: credit-card-validate
MCP name: credit_card_validate
Category: Finance
Machine-readable: openapi.json · markdown.md

Arguments

Example arguments

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