CLABE

The 18-digit interbank account number used for SPEI transfers.

Validate and parse

import { parseClabe } from "mexico-utils";

parseClabe("002 010 07777777777 1");
// {
//   clabe: "002010077777777771",
//   bank: { code: "002", name: "Banamex" },
//   plaza: "010",
//   account: "07777777777"
// }

The digits break down like this:

The bank list comes from Banxico's list of SPEI participants and is exported as BANKS. You can browse it on the banks page. If the code isn't in the list, the CLABE is still valid and bank is null, because new participants show up all the time.

Generate

import { generateClabe } from "mexico-utils";

generateClabe("012", "180", "01234567890");

It pads each part with zeros and adds the check digit.