sysketch is listed as active in the registry but did not answer our last check. 76 installs a week from npm. It exposes 2 tools. Last commit 30 Oct 2026.
Polished system design diagrams (SVG/PNG) from a tiny YAML spec, ~18x fewer tokens than raw SVG.
What changed 1
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 29 October 2026. No other catalogue keeps this.
What the code does
We read the source, 2 d ago · tools taken from the live server · rules 995398eba69f
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
(theme.backdrop ? `<rect width="${W}" height="${H}" fill="url(#sk-bg)"/>` : '') +
out.join('') +
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.
claude mcp add sysketch --transport http https://sysketch.vercel.app/mcphttps://sysketch.vercel.app/mcp[mcp_servers.sysketch]
url = "https://sysketch.vercel.app/mcp"{
"mcpServers": {
"sysketch": {
"url": "https://sysketch.vercel.app/mcp"
}
}
}{
"servers": {
"sysketch": {
"type": "http",
"url": "https://sysketch.vercel.app/mcp"
}
}
}Available tools 2
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
list_icons
render_diagram
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://sysketch.vercel.app/mcp | streamable-http | answering | 47 ms | 8 min ago |
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sysketch — questions
Answers built from our own checks of this server.