serbia-invoice

Let AI agents send Serbian e-invoices to SEF (eFaktura), the national system.

CommunityDegradedNo sign-inGlobalFreeCan modify data

What it can do

  • Create Invoice: Issue a Serbia B2B electronic invoice (elektronska faktura) into the national SEF eFaktura system (Ministry of Finance). Builds UBL 2.1 XML in the SRB-CIUS customization (Serbia's CIUS
  • Query Invoice: Check the SEF status of a sales invoice created by create_invoice, using its sales_invoice_id. Status values (SEF SalesInvoiceStatus): NEW (Nova/New — draft not yet sent); SENDING (in t
  • Cancel Invoice: Cancel (Otkazivanje) a Serbia sales invoice you sent, using its sales_invoice_id and a mandatory reason (cancel_comment). This is the seller cancelling their own Sent invoice before th

What data it sees

Do you need an account

No: the server works without sign-in

Let AI agents send Serbian e-invoices to SEF (eFaktura), the national system. Stateless remote MCP server: bring your own SEF access, it stores nothing. Build UBL 2.1 XML with VAT math (20/10/0%), upload, query status, cancel.

How to connect

How to connect serbia-invoice to Claude

The server address to paste into Claude settings:

https://serbia-invoice--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 serbia-invoice to ChatGPT

The server address to paste into ChatGPT settings:

https://serbia-invoice--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 serbia-invoice to Cursor

The server address to paste into Cursor settings:

https://serbia-invoice--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 Serbia B2B electronic invoice (elektronska faktura) into the national SEF eFaktura system (Ministry of Finance). Builds UBL 2.1 XML in the SRB-CIUS customization (Serbia's CIUS of EN 16931) and uploads it under your own SEF API key. Bring your own credential as a header: x-sef-api-key (the API key you self-generate in the SEF portal under Settings -> API management / Podesavanja -> Upravljanje API). Header x-sef-mode: prod switches to the live rail (default = demo, no fiscal effect). You must supply your own seller identity in the arguments (supplier_pib + supplier_name), because SEF validates that the seller in the XML matches your account. Returns sales_invoice_id (SEF's invoice id) — poll query_invoice with it to learn the status (New/Sent/Approved/Rejected/Cancelled...). Serbian VAT rates: 20 (standard), 10 (reduced), 0 (zero-rated). Amounts are in RSD (Serbian dinar). Set send_to_cir=true when the buyer is a budget / public-sector user (registration in the Central Invoice Register / CRF is then mandatory).
query_invoiceCheck the SEF status of a sales invoice created by create_invoice, using its sales_invoice_id. Status values (SEF SalesInvoiceStatus): NEW (Nova/New — draft not yet sent); SENDING (in transit); SENT (delivered to the buyer, awaiting their action); SEEN (buyer opened it); APPROVED (buyer accepted — Prihvacena); APPROVED_WITH_RESERVATION (accepted with reservation); REJECTED (buyer rejected — Odbijena); CANCELLED (seller cancelled — Otkazana); STORNO (reversed by a storno document); MISTAKE (marked as an error); OVERDUE (payment past due); REMINDED (a reminder was sent); DELETED. Safe to call anytime.
cancel_invoiceCancel (Otkazivanje) a Serbia sales invoice you sent, using its sales_invoice_id and a mandatory reason (cancel_comment). This is the seller cancelling their own Sent invoice before the buyer accepts or rejects it; once the buyer has Approved it, cancellation is no longer possible and a storno (credit) document is required instead (storno is out of scope in v1 — honest limit). Returns the SEF response. Irreversible.