iFirma polish invoicing and accounting MCP server: issue invoice, send invoice, send to KSeF.
Streamable HTTP
https://cotlet.dev/mcp/v1/ifirma/connectclaude mcp add --transport http ifirma https://cotlet.dev/mcp/v1/ifirma/connectStreamable HTTP
https://cotlet.dev/mcp/v1/ifirmaclaude mcp add --transport http ifirma https://cotlet.dev/mcp/v1/ifirmaThis server publishes no installable package.