MCP Servers

Mexico Invoice MCP

Enables AI agents to issue Mexico CFDI 4.0 electronic invoices (factura electrónica) via Facturapi, with tools for creating, querying, canceling, and sending invoices.

README

Mexico Invoice MCP 🇲🇽 — How can my AI agent issue a CFDI factura electrónica in Mexico?

Remote MCP server that lets any AI agent issue Mexico CFDI 4.0 electronic invoices (factura electrónica, stamped/timbrada through a SAT-certified PAC) via Facturapi. Stateless, bring-your-own credentials, never stores anything.

Live endpoint: https://inv-mx.wishpool.app/mcp · Registry: app.wishpool/mexico-invoice-mcp

Quick start

{
  "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. Your CSD certificate stays in your own Facturapi account — this server never sees it.

Tools

Tool	What it does
`create_invoice`	Stamp a CFDI 4.0 — customer RFC + zip + line items in, `uuid` (SAT folio fiscal) out. SAT catalog defaults baked in (`product_key 01010101`, `payment_form 03`, `use G03`).
`query_invoice`	Status check: `VALID` (stamped) or `CANCELED`; includes SAT `verification_url`.
`cancel_invoice`	Void at SAT with the required motive code (`01`–`04`, default `02`).
`send_invoice`	Email the stamped PDF + XML to the buyer via Facturapi.

Owner policy guardrails ride optional headers (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.

Develop

node test/serve.js   # local server on :3226
node test/e2e.js     # protocol + validation + fake-key live probes

Safety

Pure stateless translation layer. The SAT/PAC certification burden sits with Facturapi; credentials travel per-request in headers, nothing is stored. Privacy policy.

Sister servers

Local payments in 81 countries, one family: 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.

MIT licensed.

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