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100
MCP live MCP 2025-11-25 streamable-http

PESEL/NIP/REGON Validator

com.apished/pesel-nip-regon-validator

Validates Polish PESEL, NIP, and REGON checksums; PESEL also decodes birth date and sex.

Uptime
100.0%
1 direct probes · 30d
Response
156ms
last probe
Tools
3
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://apished.com/mcp/v1/idvalidate

Tools · 3

nip_validate

Validates the checksum of a 10-digit Polish tax identification number (NIP). Checksum uses weights 6 5 7 2 3 4 5 6 7 over the first 9 digits; sum mod 11 must equal the 10th digit. A sum mod 11 of 10 i…

pesel_validate

Validates the checksum of an 11-digit Polish national identification number (PESEL). Checksum uses weights 1 3 7 9 1 3 7 9 1 3 over the first 10 digits; control digit is (10 - sum mod 10) mod 10. On s…

regon_validate

Validates the checksum of a 9- or 14-digit Polish business registry number (REGON). 9-digit: weights 8 9 2 3 4 5 6 7 over the first 8 digits, sum mod 11 (10 mapped to 0) must equal the 9th digit. 14-d…

How to use

Add to your Claude Desktop / Cursor / Cline MCP config:

{
  "mcpServers": {
    "pesel/nip/regon_validator": {
      "url": "https://apished.com/mcp/v1/idvalidate",
      "transport": "streamable-http"
    }
  }
}