io.github.himanshu-mamgain/archform

Archform

Is the Archform MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-26.

Render and validate diagrams as code: Mermaid, PlantUML, C4, Graphviz, D2 and more.

alive probed 2026-11-15 · unchanged since 2026-10-26

3tools

1.1ktokens in Claude Opus 5.5

0.5 %of Claude's 200k window

0.4×the median server

413 msto initialize

12 msto list tools

Run it: npx -y @archform/mcp@0.2.2 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: archform 0.2.2
Capabilities: tools
Instructions: 202 characters
Of a 1M window: 0.1 % of a 1M context window
Count: 1.1k tokens in Claude Opus 5.5, exact, measured 2026-10-26. With the Claude Code prefix mcp__…__ on each tool name: 1.1k. The o200k_base estimate is 673. Counted again when the tool definitions change. Method.
Repository: https://github.com/himanshu-mamgain/archform
Registry: active, updated 2026-10-20 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.61×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
render_diagram	510	316	47 %
validate_diagram	407	252	37 %
list_formats	169	105	16 %

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

Servers that mention diagrams or graphviz.

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

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