paraguay-invoice-mcp

Let AI agents issue Paraguay electronic invoices (SIFEN e-Kuatia) — create documentos electronicos via your own FacturaSend account, query by CDC, check DNIT…

CommunityOnlineNo sign-inGlobalFreeCan modify data

What it can do

  • Create Invoice: Issue a Paraguay electronic invoice (factura electrónica, Documento Electrónico for SIFEN / e-Kuatia) through FacturaSend, which generates, digitally signs and transmits it to the DNIT
  • Query Invoice: Look up a previously-created Paraguay DE by its cdc (the 44-digit control code) OR by its FacturaSend internal id — pass exactly one of { cdc } or { id }. Wraps GET /{tenant}/de/cdc/{cd
  • Get Document Status: Consult the live SIFEN status of a Paraguay DE by its cdc — wraps POST /{tenant}/de/estado. FacturaSend queries DNIT/SIFEN and returns the estado: "Aprobado" (approved, fiscally v

What data it sees

Do you need an account

No: the server works without sign-in

Let AI agents issue Paraguay electronic invoices (SIFEN e-Kuatia) — create documentos electronicos via your own FacturaSend account, query by CDC, check DNIT status. Stateless remote MCP server: bring your own tenant and key, IVA 10/5% computed locally, never stores data.

How to connect

How to connect paraguay-invoice-mcp to Claude

The server address to paste into Claude settings:

https://paraguay-invoice-mcp--wishpool.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect paraguay-invoice-mcp to ChatGPT

The server address to paste into ChatGPT settings:

https://paraguay-invoice-mcp--wishpool.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect paraguay-invoice-mcp to Cursor

The server address to paste into Cursor settings:

https://paraguay-invoice-mcp--wishpool.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (3)

Raw names from tools/list. Only developers need these.

create_invoiceIssue a Paraguay electronic invoice (factura electrónica, Documento Electrónico for SIFEN / e-Kuatia) through FacturaSend, which generates, digitally signs and transmits it to the DNIT (tax authority) from YOUR OWN FacturaSend account — this server only forwards the call and never holds your certificate. It wraps POST /{tenant}/lote/create with a single DE. Amounts are in Paraguayan guaraníes (PYG), which have NO decimals — pass unit prices as INTEGERS, and prices are TAX-INCLUSIVE (IVA incluido). IVA (VAT) rate per line: 10 (standard), 5 (reduced), or 0 (exempt); the server liquidates the IVA portion locally (10% -> price*10/110, 5% -> price*5/105). Set draft=true to build the DE WITHOUT transmitting it to SIFEN (offline test, no fiscal effect). On success you get the 44-digit cdc, the numero (establecimiento-punto-numero), and the SIFEN estado (Aprobado / Aprobado con observacion / Rechazado). Required credential headers (set once in your MCP client, per-request, never stored): x-facturasend-tenant (your FacturaSend tenant/company id, in the URL path) + x-facturasend-key (your FacturaSend API key; the free test environments never reach SIFEN production). Optional owner-policy headers x-agentpay-max-amount / x-agentpay-approval-above / x-agentpay-allowed-tools.
query_invoiceLook up a previously-created Paraguay DE by its cdc (the 44-digit control code) OR by its FacturaSend internal id — pass exactly one of { cdc } or { id }. Wraps GET /{tenant}/de/cdc/{cdc} or GET /{tenant}/de/id/{id}. Returns the document metadata FacturaSend holds: id, cdc, fecha, situacion (SIFEN situation code), lote_id, lote_estado, and info_codigo/info_descripcion (e.g. "CDC duplicado"). To get the live SIFEN approval status use get_document_status instead. Safe to call anytime. Required credential headers (set once in your MCP client, per-request, never stored): x-facturasend-tenant (your FacturaSend tenant/company id, in the URL path) + x-facturasend-key (your FacturaSend API key; the free test environments never reach SIFEN production). Optional owner-policy headers x-agentpay-max-amount / x-agentpay-approval-above / x-agentpay-allowed-tools.
get_document_statusConsult the live SIFEN status of a Paraguay DE by its cdc — wraps POST /{tenant}/de/estado. FacturaSend queries DNIT/SIFEN and returns the estado: "Aprobado" (approved, fiscally valid), "Aprobado con observacion" (approved with an observation), or "Rechazado" (rejected — read respuesta_mensaje, fix, and re-issue). Also returns situacion, fecha, respuesta_codigo and respuesta_mensaje (the SIFEN message, e.g. "0260 Autorización del DE satisfactoria"). Required credential headers (set once in your MCP client, per-request, never stored): x-facturasend-tenant (your FacturaSend tenant/company id, in the URL path) + x-facturasend-key (your FacturaSend API key; the free test environments never reach SIFEN production). Optional owner-policy headers x-agentpay-max-amount / x-agentpay-approval-above / x-agentpay-allowed-tools.