SimStim MCP Server

by simstim Your server? Claim it

not responding

SimStim is listed as active in the registry but did not answer our last check.

Deploy sims to any screen. Control your displays with Claude.

Uptime history 51 days of history · worst day 0%

51 days agonow

0.0%

Uptime 24h

0 of 91 checks

—

Tools

hidden behind auth

129 ms

Response time

average over 24h

open, no key

Access

streamable-http

SimStim does not always answer

Over the last week it answered 0.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add mcp --transport http https://my.simstim.ai/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://my.simstim.ai/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.mcp]
url = "https://my.simstim.ai/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://my.simstim.ai/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://my.simstim.ai/mcp"
    }
  }
}

Endpoints

URL	Transport	State	Latency	Checked
https://my.simstim.ai/mcp	streamable-http	answering	129 ms	7 min ago

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SimStim — questions

Answers built from our own checks of this server.

Is SimStim working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 91 checks got a reply (0.0%), average response time 129 ms. The bar chart above shows every period we have measured.

The registry lists SimStim as active — why does it not respond?

The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.

How do I connect SimStim?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does SimStim need an API key?

No. SimStim completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. This is what we observed, not what the docs claim.