mcp-server-datovka

An MCP server exposing the Czech ISDSData Box system ("Datové schránky") as tools, built onfastmcp andpython3-datovka.

Tools

Tool	Description
`list_received_messages(limit=20)`	Summaries of received messages, most recent first
`list_sent_messages(limit=20)`	Summaries of sent messages, most recent first
`get_message(message_id, include_attachment_content=False)`	Full message with documents; attachment bytes are base64-encoded and only included on request
`mark_message_read(message_id)`	Mark a received message as read
`ping()`	Verify the session is alive

Configuration

Credentials are read once from the environment at startup and are nevertool parameters, so the LLM driving the server can't see or choose them:

export DATOVKA_URL="https://ws1.mojedatovaschranka.cz"  # optional, this is the default
export DATOVKA_USERNAME="..."
export DATOVKA_PASSWORD="..."

Running

mcp-server-datovka

Or point an MCP client at it directly:

python -m mcp_server_datovka.server

Requirements

libdatovka8 + python3-datovka (or pip install datovka)
fastmcp

License

LGPL-3.0-or-later.

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Skarn guard: agent plugins

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mcp-server-datovka