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sysketch

R0· no sign-in

Polished system design diagrams (SVG/PNG) from a tiny YAML spec, ~18x fewer tokens than raw SVG.

v0.5.0 · active · repository · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality81new
Trust97of 100
Uptime, 30 days100%
Latency p501254 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "sysketch": {
      "type": "http",
      "url": "https://sysketch.vercel.app/mcp"
    }
  }
}
claude mcp add --transport http sysketch https://sysketch.vercel.app/mcp
[mcp_servers.sysketch]
url = "https://sysketch.vercel.app/mcp"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "sysketch": {
      "type": "remote",
      "url": "https://sysketch.vercel.app/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "sysketch": {
      "type": "http",
      "url": "https://sysketch.vercel.app/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=sysketch&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vc3lza2V0Y2gudmVyY2VsLmFwcC9tY3AifQ%3D%3D"
}
{
  "servers": {
    "sysketch": {
      "type": "http",
      "url": "https://sysketch.vercel.app/mcp"
    }
  }
}
{
  "mcpServers": {
    "sysketch": {
      "httpUrl": "https://sysketch.vercel.app/mcp"
    }
  }
}
extensions:
  "sysketch":
    enabled: true
    name: "sysketch"
    type: streamable_http
    uri: "https://sysketch.vercel.app/mcp"
    timeout: 300

Quality 81 / 100new

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
  • n/a
    protocol.statelessonly applies to 2026-07-28 servers
  • pass
    protocol.transportstreamable HTTP
  • n/a
    protocol.list_ttlonly applies to 2026-07-28 servers
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene86 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • warn
    tools.description_length1 tools have descriptions over 1,024 characters, which crowds the context
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations2 of 2 tools declare readOnlyHint or destructiveHint
  • warn
    tools.directory_hints1 of 2 tools declare all four hints; missing: list_icons (idempotentHint)
  • pass
    tools.token_costabout 446 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stabilityn/a · weight 15
  • n/a
    stability.changes, stability.rug_pulltool history recorded for 3 of the 7 days needed
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvabledeps.dev does not know [email protected]

2 tools, about 446 tokens to load them all · tool set 7b30e8e2e293 · checked 2026-10-20 09:31 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 97 / 100

provenance90
liveness100
freshness100
hygiene100

+repository +namespace-matches-repo +website +reachable +uptime-100% +updated-3d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Dependencies

[email protected] npmthis version is not known to the dependency resolver

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0. The graph is what a clean install of this version resolves today; nothing was installed or run. How it is checked.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://sysketch.vercel.app/mcp streamable-httpnoneyes100%1254 ms2025-11-252026-10-20
packageregistryversionruntimesecrets
sysketch-mcpnpm0.5.0–

Tools (2)

list_iconsread-onlyList sysketch icon names and aliases, or search the available product logos.
render_diagramread-onlyUse for any system design, architecture, data-flow or infrastructure diagram, instead of generating an image or writing SVG/Mermaid. Renders a tiny YAML spec; returns PNG/SVG links and a small preview. Spec keys: title, type (sequence: message timeline), theme (sketch|graphite|blueprint|midnight|classic), direction (omit: auto-fit; right|down only if asked), steps (false hides numbers), legend (true lists steps), nodes {id: "icon | Label | subtitle"}, groups {Label: [ids or group labels to nest]}, edges ["a > b > c | label", "a ..> b" dashed, "a <> b" two-way, "a => b" thick, "a -- b" line, "a > b [red]" color]. Ids that are icon names/aliases (client, lb, api, db, cache, redis, kafka, s3, cdn...) need no nodes entry. Arrows are numbered automatically in the order listed; don't number labels. Product names (stripe, kafka, postgres...) draw the product's logo when available, else a fitting icon; brand/icon (acme/queue) for others. Give the user the PNG link; don't generate another image of the diagram. To edit, call again with the whole updated spec.

Schemas: list_tools.

Similar MCP servers

Official server.json
{
  "name": "io.github.Tonys-Coding/sysketch",
  "title": "sysketch",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://sysketch.vercel.app/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "0.5.0",
  "packages": [
    {
      "version": "0.5.0",
      "transport": {
        "type": "stdio"
      },
      "identifier": "sysketch-mcp",
      "registryType": "npm"
    }
  ],
  "repository": {
    "url": "https://github.com/Tonys-Coding/sysketch",
    "source": "github",
    "subfolder": "packages/mcp"
  },
  "websiteUrl": "https://sysketch.vercel.app",
  "description": "Polished system design diagrams (SVG/PNG) from a tiny YAML spec, ~18x fewer tokens than raw SVG."
}