SUBSTRATE MCP Server

by pkaldone Your server? Claim it

not responding

SUBSTRATE is listed as active in the registry but did not answer our last check. 45 installs a week from npm.

Persistent AI entity framework with causal memory, emotional state, and identity.

The linked repository no longer exists on GitHub — it was deleted or made private.

Installs per day peak 14 · avg 5 · -18% w/w

a month agotoday

Uptime history 91 days of history · worst day 0%

91 days agonow

0.0%

Uptime 24h

0 of 91 checks

—

Tools

hidden behind auth

98 ms

Response time

average over 24h

Installs / week

npm and PyPI

SUBSTRATE 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 9 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add substrate --transport http https://substrate.garmolabs.com/mcp-server/mcp

Settings → Connectors → Add custom connector, then paste this address

https://substrate.garmolabs.com/mcp-server/mcp

~/.codex/config.toml

[mcp_servers.substrate]
url = "https://substrate.garmolabs.com/mcp-server/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "substrate": {
      "url": "https://substrate.garmolabs.com/mcp-server/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "substrate": {
      "type": "http",
      "url": "https://substrate.garmolabs.com/mcp-server/mcp"
    }
  }
}

Endpoints

URL	Transport	State	Latency	Checked
https://substrate.garmolabs.com/mcp-server/mcp	streamable-http	answering	98 ms	9 min ago

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SUBSTRATE — questions

Answers built from our own checks of this server.

Is SUBSTRATE 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 98 ms. The bar chart above shows every period we have measured.

Is SUBSTRATE still maintained?

The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.

The registry lists SUBSTRATE 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 SUBSTRATE?

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

Does SUBSTRATE need an API key?

No. SUBSTRATE 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.

How many people use SUBSTRATE?

The npm package substrate-mcp was installed 45 times in the last week. Week over week that is -18%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.