mcpcost

com.facturxapi/mcp

FacturX API

Is the FacturX API MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-12.

Official MCP server for the FacturX API: dry run, Factur-X conversion, validation, rule lookup.

alive probed 2026-11-14 · unchanged since 2026-11-12

4tools
1.2ktokens in Claude Opus 5.5
0.6 %of Claude's 200k window
0.5×the median server
1.6 sto initialize
5 msto list tools
Run it
uvx facturx-mcp@0.1.2 (stdio, probed in a container with the network off)
Host
pypi.org
Reports itself as
facturx 0.1.2
Capabilities
prompts, resources, tools
Instructions
398 characters
Of a 1M window
0.1 % of a 1M context window
Count
1.2k tokens in Claude Opus 5.5, exact, measured 2026-11-12. With the Claude Code prefix mcp__…__ on each tool name: 1.2k. The o200k_base estimate is 683. Counted again when the tool definitions change. Method.
Repository
https://github.com/facturxapi/sdk
Registry
active, updated 2026-11-11 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.69×.

Tool≈ Claude tokenso200k estimateShare of this server
facturx_convert38722934 %
facturx_validate27016023 %
facturx_explain_error25014822 %
facturx_dry_run24614621 %

Compare this server with others.

More servers

Other registry entries on pypi.org, the ones next to this name; all of them.

Servers that mention facturx.

Badge for the README

mcpcost: alive

The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.

Atom feed

A mail when this server changes

Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.

For the publisher