🇲🇽 Mexico Invoice MCP live

AI agents can now issue Mexico CFDI 4.0 electronic invoices (factura electrónica). This remote MCP server wraps Facturapi — invoices are stamped (timbradas) through a SAT-certified PAC — with four tools: create_invoice, query_invoice, cancel_invoice, send_invoice.

Connect

{
  "mcpServers": {
    "mexico-invoice": {
      "type": "http",
      "url": "https://inv-mx.wishpool.app/mcp",
      "headers": { "x-facturapi-key": "sk_test_..." }
    }
  }
}

Free sk_test_ keys from facturapi.io never reach SAT; sk_live_ stamps real CFDIs. Your CSD certificate stays in your own Facturapi account.

Why it is safe

• Stateless: no database — credentials travel per-request in headers and are never stored.
• Certification stays upstream: Facturapi carries the SAT/PAC certification; we only translate MCP calls.
• Owner policy guardrails: x-agentpay-max-amount, x-agentpay-approval-above, x-agentpay-allowed-tools — set by the human owner in client config; the agent cannot relax them.

Weak-model friendly

SAT catalog defaults baked in (product_key 01010101, payment_form 03, use G03); every result embeds numbered next_steps; every error teaches the fix (RFC format, 5-digit zip, motive codes 01–04).

Sister servers

Local payments in 81 countries — one family, same stateless pattern: mcp.wishpool.app. Taiwan e-invoice (電子發票) included. More invoice countries coming: Brazil NF-e, Chile DTE, Peru CPE, India GST, Poland KSeF, Romania e-Factura, Italy SdI.