KSeF2 Docs

Typed Python clients and tools for Poland's KSeF v2 API — sync and async, sessions, invoices, and FA(3).

Pick a product below. SDK documentation is complete; CLI and MCP guides are growing as those tools stabilize.

KSeF2 SDK Sync and async clients, session helpers, invoice workflows, FA(3) builder, and XAdES signing.

KSeF2 CLI Command-line workflows on top of the SDK — export, auth, and batch jobs from your shell.

KSeF2 MCP Model Context Protocol server for IDE and agent integrations with KSeF.