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Let AI agents report Hungarian invoice data to NAV Online Szamla 3.0 (szamla adatszolgaltatas). Stateless remote MCP server: bring your own technical-user values, signatures computed per request, nothing stored. Submit invoice data with AFA math (27/18/5%), query transaction status.

Transport
streamable-http
Auth
smithery_api_key
Cost

How to connect

MCP endpoint (streamable-http)
https://server.smithery.ai/wishpool/hungary-invoice/mcp
JSON-RPC initialize probe
curl -X POST https://server.smithery.ai/wishpool/hungary-invoice/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{}}'
Homepage
https://inv-hu.wishpool.app
Listed at (smithery)
https://inv-hu.wishpool.app