PESEL/NIP/REGON Validator is a remote MCP server that gives an AI agent 3 tools, among them nip_validate, pesel_validate, regon_validate. It answers at https://apished.com/mcp/v1/idvalidate over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 10 of 10 times since 4 September 2026; the last check, on 17 October 2026, succeeded.
Validates Polish PESEL, NIP, and REGON checksums; PESEL also decodes birth date and sex.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
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 is itself invalid. Inputs: value |
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 success also decodes the date of birth an Inputs: value |
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-digit: the first 9 digits must themselves Inputs: value |
Every block below points at https://apished.com/mcp/v1/idvalidate. Pick your client and copy.
claude mcp add --transport http pesel-nip-regon-validator https://apished.com/mcp/v1/idvalidate
{
"mcpServers": {
"pesel-nip-regon-validator": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://apished.com/mcp/v1/idvalidate"]
}
}
}{
"mcpServers": {
"pesel-nip-regon-validator": {
"url": "https://apished.com/mcp/v1/idvalidate"
}
}
}{
"servers": {
"pesel-nip-regon-validator": {
"type": "http",
"url": "https://apished.com/mcp/v1/idvalidate"
}
}
}{
"context_servers": {
"pesel-nip-regon-validator": {
"url": "https://apished.com/mcp/v1/idvalidate"
}
}
}{
"mcpServers": {
"pesel-nip-regon-validator": {
"serverUrl": "https://apished.com/mcp/v1/idvalidate"
}
}
}{
"mcpServers": {
"pesel-nip-regon-validator": {
"url": "https://apished.com/mcp/v1/idvalidate"
}
}
}name: PESEL/NIP/REGON Validator
version: 0.0.1
schema: v1
mcpServers:
- name: PESEL/NIP/REGON Validator
type: streamable-http
url: https://apished.com/mcp/v1/idvalidate{
"mcpServers": {
"pesel-nip-regon-validator": {
"httpUrl": "https://apished.com/mcp/v1/idvalidate"
}
}
}{
"mcpServers": {
"pesel-nip-regon-validator": {
"type": "http",
"url": "https://apished.com/mcp/v1/idvalidate"
}
}
}{
"mcpServers": {
"pesel-nip-regon-validator": {
"url": "https://apished.com/mcp/v1/idvalidate"
}
}
}goose://extension?url=https%3A%2F%2Fapished.com%2Fmcp%2Fv1%2Fidvalidate&type=streamable_http&id=pesel-nip-regon-validator&name=PESEL/NIP/REGON%20Validator
It answered our last check on 17 October 2026 in 216 ms. Over 10 checks since 4 September 2026 it answered 10. Status here comes from Neuronto's own probes, not from the publisher.
Yes. It is published by apished.com and served from apished.com, the vendor's own domain: https://apished.com/mcp/v1/idvalidate.
3, as returned by the server's own tools/list on 10 September 2026: nip_validate, pesel_validate, regon_validate.
It answered our last check on 17 October 2026 in 216 ms. Over 10 checks since 4 September 2026 it answered 10.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://apished.com/mcp/v1/idvalidate. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: com.apished. Endpoint host: apished.com. ARD identifier: urn:air:com.apished:mcp:pesel-nip-regon-validator.
First indexed 31 August 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.