DATEV EXTF runs on your own machine — the client starts it, so there is no endpoint to ping. 43 installs a week from npm. Last commit 26 Sep 2026.
Validate and write DATEV-Format (EXTF) files locally, with findings in German and English.
Nothing serious here today
Today is the operative word: we check DATEV EXTF every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add datev-extf -- npx -y @seamless-engineering/datev-extf-mcp{
"mcpServers": {
"datev-extf": {
"args": [
"-y",
"@seamless-engineering/datev-extf-mcp"
],
"command": "npx"
}
}
}[mcp_servers.datev-extf]
command = "npx"
args = ["-y", "@seamless-engineering/datev-extf-mcp"]{
"mcpServers": {
"datev-extf": {
"args": [
"-y",
"@seamless-engineering/datev-extf-mcp"
],
"command": "npx"
}
}
}{
"mcpServers": {
"datev-extf": {
"args": [
"-y",
"@seamless-engineering/datev-extf-mcp"
],
"command": "npx"
}
}
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DATEV EXTF — questions
Answers built from our own checks of this server.