Validation
Validate or generate numbers using the Luhn algorithm (mod-10). Works for credit cards, IMEI, IMEISV, SIN, NPI and any custom Luhn-based identifier.
Call this tool from your code in three languages.
curl -X POST 'https://api.elysiatools.com/en/api/tools/luhn-checksum' \
-H 'Content-Type: application/json' \
-d '{"mode":"validate","number":"e.g., 4532015112830366 (spaces/dashes ignored)","length":16,"prefix":"e.g., 4 for Visa, 35 for JCB (leave blank for random)"}'Send a POST request with your inputs as JSON. File parameters require a separate upload first.
POST https://api.elysiatools.com/en/api/tools/luhn-checksum| Name | Type | Required | Description |
|---|---|---|---|
| mode | select | Yes | — |
| number | text | Yes | Any Luhn-based number. Separators are ignored. |
| length | number | No | Total digit count including the check digit. |
| prefix | text | No | Lock the leading digits of the generated number. |
Text result
{
"result": "Processed text content",
"error": "Error message (optional)",
"message": "Notification message (optional)",
"metadata": {
"key": "value"
}
}Add this tool to your Model Context Protocol server so AI agents can list and call it.
Add this block to your MCP client configuration:
{
"mcpServers": {
"elysiatools-luhn-checksum": {
"name": "luhn-checksum",
"description": "Validate or generate numbers using the Luhn algorithm (mod-10). Works for credit cards, IMEI, IMEISV, SIN, NPI and any custom Luhn-based identifier.",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=luhn-checksum",
"command": "",
"args": [],
"env": {},
"isActive": true,
"type": "sse"
}
}
}After connecting to the SSE endpoint, list the exposed tools:
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/list"
}Invoke the tool by its id, passing arguments built from its parameters:
{
"jsonrpc": "2.0",
"id": 2,
"method": "tools/call",
"params": {
"name": "luhn-checksum",
"arguments": {
"mode": "validate",
"number": "e.g., 4532015112830366 (spaces/dashes ignored)",
"length": 16,
"prefix": "e.g., 4 for Visa, 35 for JCB (leave blank for random)"
}
}
}Questions or issues? Contact [email protected]