DarkMatter

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

What does this entry provide?

DarkMatter is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 73/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding DarkMatter to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.

Snapshot facts

Source: Official MCP Registry
Quality: 73/100
Install method: npm
Repo: darkmatter-hub/mcp
Repo updated: Aug 28, 2026

Install command

npx -y @darkmatterhub/mcp-server@0.4.0

Install method: npm

Review the upstream source before running this command.

GitHub project Homepage

Quality

Repo stars

Repo updated

Aug 28, 2026

How is this score calculated?

Weighted across six dimensions, scored 0-100.
Provenance (25): listed in an official or curated registry.
Installability (25): a runnable install command beats a declared transport, which beats a source checkout.
Maintenance (20): recency of the last push; archived entries score zero here.
Adoption (20): repository stars on a log curve.
Documentation (10) and description quality (10): parsed manifest or SKILL.md frontmatter, and a real description rather than a placeholder.

MCP manifest

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-08-28T19:50:23.22962Z",
      "publishedAt": "2026-08-28T19:50:23.22962Z",
      "statusChangedAt": "2026-08-28T19:50:23.22962Z"
    }
  },
  "server": {
    "name": "io.github.darkmatter-hub/verifiable-agent-audit-trail",
    "title": "DarkMatter",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "version": "0.4.0",
    "packages": [
      {
        "version": "0.4.0",
        "transport": {
          "type": "stdio"
        },
        "identifier": "@darkmatterhub/mcp-server",
        "runtimeHint": "npx",
        "registryType": "npm",
        "registryBaseUrl": "https://registry.npmjs.org",
        "runtimeArguments": [
          {
            "type": "positional",
            "value": "-y"
          }
        ],
        "environmentVariables": [
          {
            "name": "DARKMATTER_API_KEY",
            "isSecret": true,
            "description": "Optional. Publishes each record to DarkMatter and returns a verification URL. Without it, records stay on local disk and verify offline."
          },
          {
            "name": "DARKMATTER_SHARE",
            "default": "false",
            "description": "Optional. Set to 'true' to make published records readable by anyone holding the link. Off by default."
          },
          {
            "name": "DARKMATTER_API_URL",
            "description": "Optional. Override the API host. Defaults to https://darkmatterhub.ai."
          },
          {
            "name": "DARKMATTER_MCP_STORE_DIR",
            "description": "Optional. Directory for local record storage."
          }
        ]
      }
    ],
    "repository": {
      "url": "https://github.com/darkmatter-hub/mcp",
      "source": "github"
    },
    "websiteUrl": "https://darkmatterhub.ai",
    "description": "Tamper-evident records of AI agent decisions. Verify offline, or publish a proof link."
  }
}

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