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. 26 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 25 · avg 7 · +34% w/w

a month agotoday

Uptime history 51 days of history · worst day 0%

51 days agonow

0.0%

Uptime 24h

0 of 91 checks

—

Tools

hidden behind auth

0 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 5 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

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

{
  "mcpServers": {
    "substrate": {
      "url": "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

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

Endpoints

URL	Transport	State	Latency	Checked
https://substrate.garmolabs.com/mcp-server/mcp	streamable-http	answering	0 ms	5 min ago

Alternatives to SUBSTRATE

same job, measured the same way

Xaip MCP Server

by xkumakichi

AI agents get on-chain identity, credentials, reputation, escrow, and persistent memory on XRPL.

30 installs/wk local only

Memori MCP

by memorilabs

Memori MCP server — persistent AI memory with recall and augmentation tools

36 installs/wk local only

Ori Memory

by aayoawoyemi

Persistent memory infrastructure for AI agents. Identity, knowledge graph, and search.

326 installs/wk local only

World Model MCP

by putervision

Persistent 3D/2D spatial world model for AI agents with entity tracking and simulation.

4 162 installs/wk local only

Mnemo MCP

by n24q02m

Persistent AI memory with hybrid search and embedded sync. Open, free, unlimited.

3 037 installs/wk local only

Memnode

by memnode

Persistent, inspectable memory for AI agents with lineage, correction, and a hosted MCP endpoint.

answering

Ace Memory

by rudedoggg

Persistent memory for AI agents. Semantic search, memory graph, W3C DID identity.

answering

Brains

by brainsforai

Personal wiki and memory layer for AI assistants. Persistent, structured memory across sessions.

answering

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 0 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 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 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 26 times in the last week. Week over week that is +34%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.