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DarkMatter MCP Server

by darkmatter-hub Your server? Claim it
local only

DarkMatter runs on your own machine — the client starts it, so there is no endpoint to ping. 26 installs a week from npm. Last commit 23 Sep 2026.

Tamper-evident records of AI agent decisions. Verify offline, or publish a proof link.

Installs per day peak 25 · avg 8 · -50% w/w
a month agotoday
26
Installs / week
npm · @darkmatterhub/mcp-server
0
Stars
0 open issues
23 Sep 2026
Last commit
4 releases in 90 days
Apache-2.0
License
TypeScript

What the code does

We read the source, 5 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Builds a file path from a variable src/store.ts:24
  const dir = path.join(ROOT, sessionId);
In the project's build, not in the package

Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.

Builds a database query by concatenation .github/workflows/registry-set-status.yml:60
      - name: Update status
        env:
          TOKEN: ${{ steps.auth.outputs.token }}

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add verifiable-agent-audit-trail -- npx -y @darkmatterhub/mcp-server
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "verifiable-agent-audit-trail": {
      "command": "npx",
      "args": [
        "-y",
        "@darkmatterhub/mcp-server"
      ]
    }
  }
}
~/.codex/config.toml
[mcp_servers.verifiable-agent-audit-trail]
command = "npx"
args = ["-y", "@darkmatterhub/mcp-server"]
.cursor/mcp.json
{
  "mcpServers": {
    "verifiable-agent-audit-trail": {
      "command": "npx",
      "args": [
        "-y",
        "@darkmatterhub/mcp-server"
      ]
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "verifiable-agent-audit-trail": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@darkmatterhub/mcp-server"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: DARKMATTER_API_KEY (Optional. Publishes each record to DarkMatter and returns a verification URL. Without it, records stay on local disk and verify offline), DARKMATTER_SHARE (Optional. Set to 'true' to make published records readable by anyone holding the link. Off by default), DARKMATTER_API_URL (Optional. Override the API host. Defaults to https://darkmatterhub.ai), DARKMATTER_MCP_STORE_DIR (Optional. Directory for local record storage).

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same job, measured the same way
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Vouchwell
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Read, verify and export a tamper-evident log of what an AI agent did. Read-only.

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DarkMatter — questions

Answers built from our own checks of this server.

Why is there no uptime for DarkMatter?
DarkMatter runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @darkmatterhub/mcp-server was installed 26 times last week.
How do I connect DarkMatter?
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 runs locally, so the command pulls @darkmatterhub/mcp-server straight from npm; nothing to host, nothing to sign up for.
How many people use DarkMatter?
The npm package @darkmatterhub/mcp-server was installed 26 times in the last week. Week over week that is -50%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is DarkMatter open source?
Yes — it is published under the Apache-2.0 licence, written in TypeScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.