MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

sysketch

Claim this listing

io.github.Tonys-Coding/sysketch

Tonys-CodingVerified

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

Design & media

Developer ToolsIs sysketch down?Alternatives

13 of 22 checks passed

  • Handshake
  • Tools listed
  • Updated recently

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Connect to server
Median latency
2051 ms
Uptime, 30 days
Not measured
Last checked

Measurement details

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 2051 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name sysketch.

  • Pass
    Lists tools

    tools/list returned 2 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 2051 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 2051 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Fail
    Parameters documented

    3 of 4 parameters have a description (75%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Not measured
    Website matches publisher

    This namespace is not a reverse domain, so the website comparison does not apply.

  • Pass
    Source repo linked

    A repository URL is on file.

  • Pass
    Repo owner matches

    The GitHub repository owner matches the namespace login.

  • Pass
    Recently updated

    Updated 2026-10-17T01:38:32.976919Z, within 180 days.

  • Not measured
    Open-source licence

    The GitHub licence lookup has not returned an OSI result yet.

Tools

  • list_icons

    List sysketch icon names and aliases, or search the available product logos.

    Measured

  • render_diagram

    Use 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]}, maps {Group Label or world-map node id: world | {pins: [us-east, eu-west, "HQ @ -0.1 51.5"]}} (map backdrop, or a big map card when a node uses the icon world-map), 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, postgres, s3, aks, bigquery... or aws-/azure-/gcp-<service>) draw official logos, 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.

    Measured

Probe history

  • ok2051 ms2 tools

Status and uptime

Add badge to your README

The image links back to this page. It shows checks passed, or uptime, and the colour follows the latest status. Responses are cached for 5 to 15 minutes.

MCP Heartbeat badge

Markdown

[![MCP Heartbeat](https://mcpheartbeat.com/badge/io.github.Tonys-Coding/sysketch.svg)](https://mcpheartbeat.com/s/io.github.Tonys-Coding/sysketch)

HTML

<a href="https://mcpheartbeat.com/s/io.github.Tonys-Coding/sysketch"><img alt="MCP Heartbeat" src="https://mcpheartbeat.com/badge/io.github.Tonys-Coding/sysketch.svg"></a>

Uptime markdown

[![MCP Heartbeat uptime](https://mcpheartbeat.com/badge/io.github.Tonys-Coding/sysketch.svg?kind=uptime)](https://mcpheartbeat.com/s/io.github.Tonys-Coding/sysketch)

Served from https://mcpheartbeat.com.

Related servers

All alternatives

Same function and industry, ranked by checks passed then median latency.

Connect to this server

Claude Code

claude mcp add --transport http sysketch https://sysketch.vercel.app/mcp

Cursor .cursor/mcp.json

{
  "mcpServers": {
    "sysketch": {
      "url": "https://sysketch.vercel.app/mcp"
    }
  }
}

VS Code .vscode/mcp.json

{
  "servers": {
    "sysketch": {
      "type": "http",
      "url": "https://sysketch.vercel.app/mcp"
    }
  }
}