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Agent402 UK — CLABE Validator
x402
Agent402 UK — CLABE Validator is a paid API for AI agents from agent402.co.uk, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Validates an 18-digit Mexican CLABE bank account number by checking its structure, bank code, and mod-10 checksum offline.
Price / call$0.001
Success—
StatusUnknown
How this service works
Don't burn tokens on deterministic work. Go/no-go jobs first: payout preflight, text firewall (PII/secrets), budget check — then rails, calendars, finmath. x402 USDC on Base. UK + global. agent402.co.uk — not agent402.tools. $0.001–$0.002 USDC on Base. No API keys.
Output
Returns a JSON object indicating whether the CLABE is valid overall, the extracted 3-digit bank code, and whether the mod-10 checksum passes — all computed offline with no external dependency.
Example use cases
Payout preflight for Mexican suppliers
“We're about to pay a Mexican vendor. Can you validate their CLABE 032180000118359719 and tell me if the checksum passes and which bank it belongs to before we proceed?”
Bulk onboarding data quality check
“A new contractor filled out their banking details and gave us CLABE 002010077777777771 — can you verify it's a valid CLABE with a correct checksum so we don't reject the payroll run?”
User-submitted payment form validation
“Someone just entered their CLABE as 021000040346291936 in our withdrawal form — is that a valid 18-digit CLABE with a good checksum, or should I ask them to re-enter it?”
Technical details
Endpoint
POSThttps://agent402.co.uk/v1/validate/clabeWhen to prefer
Use this endpoint when you need a fast, cheap, offline CLABE validation before initiating a Mexican bank payout or onboarding a payee — especially when you want to avoid burning LLM tokens on deterministic math. Prefer over asking an LLM to compute the checksum manually, which is error-prone. Complements the sibling IBAN validator for multi-region payout preflight workflows.
Side effects
- Non-18-digit input returns valid:false with a descriptive error
- Non-numeric characters cause a validation failure response
- Missing 'clabe' field in request body returns a 400-level error
- Payment (x402) failure if USDC balance is insufficient on Base
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| clabe | string | 18-digit CLABE |
Output
Schema · Response
{
"type": "json",
"example": {
"valid": true,
"bank_code": "002",
"valid_checksum": true
}
}Tags
x402
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