DarkMatter
io.github.darkmatter-hub/verifiable-agent-audit-trail
About DarkMatter
DarkMatter is an MCP server published by the GitHub account darkmatter-hub. Tamper-evident records of AI agent decisions. Verify offline, or publish a proof link.
It runs on your own machine: your AI client starts it from the npm package @darkmatterhub/mcp-server at version 0.4.0.
It asks for one secret: DARKMATTER_API_KEY. Give it a key with the least access that still works.
Version 0.4.0 was published on 28 August 2026, and the source code is public, so you can read it before installing.
Written from the registry entry. 9 automated checks on the registry entry and the package code: 7 pass, 0 warn, 0 fail, 2 info. How we check.
What it asks for
| Variable | Required | Secret | Description |
|---|---|---|---|
DARKMATTER_API_KEY | No | Yes | Optional. Publishes each record to DarkMatter and returns a verification URL. Without it, records stay on local disk and verify offline. |
DARKMATTER_SHARE | No | No | Optional. Set to 'true' to make published records readable by anyone holding the link. Off by default. |
DARKMATTER_API_URL | No | No | Optional. Override the API host. Defaults to https://darkmatterhub.ai. |
DARKMATTER_MCP_STORE_DIR | No | No | Optional. Directory for local record storage. |
Checks
| Check | Result | Detail |
|---|---|---|
| Source repository linked | Pass | https://github.com/darkmatter-hub/mcp |
| Version pinned | Pass | Every package has an explicit version |
| Secrets requested | Info | Asks for 1 secret: DARKMATTER_API_KEY |
| Known package registry | Pass | All packages come from npm, PyPI, OCI, NuGet or MCPB |
| Namespace ownership | Info | Name verified via GitHub account darkmatter-hub |
| Registry text aimed at the AI | Pass | Description and settings contain no hidden characters or instructions to the AI |
| Install scripts | Pass | @darkmatterhub/mcp-server@0.4.0 runs nothing at install |
| Code red flags | Pass | Read 8 files in @darkmatterhub/mcp-server@0.4.0: no obfuscation, encoded execution, credential reads or data-collection endpoints found |
| Text aimed at the AI | Pass | No hidden characters or instructions to the AI in 8 files, including comments and the README |
Popularity & health: 52 / 100
Worked out from public numbers and our own checks, not from user reviews or ratings. It says how used and how looked-after a server is, not whether it is safe.
0 forks, 5 merged pull requests. Sources: GitHub, npm, PyPI (pypistats.org) and Hacker News (Algolia), fetched 2026-10-31.
What people say
No Hacker News threads link to its source code.
Look further: search Reddit, search Hacker News, read its GitHub issues. These are not reviews we checked.
Facts
| Registry name | io.github.darkmatter-hub/verifiable-agent-audit-trail |
|---|---|
| Publisher | GitHub account darkmatter-hub |
| How the name is verified | Name verified via GitHub account darkmatter-hub. The registry ties the name prefix to that account or domain; it does not check the code. |
| Type | Local: runs on your machine from a package |
| Packages | npm @darkmatterhub/mcp-server 0.4.0 (stdio) |
| Version | 0.4.0 |
| Published | |
| Last updated | |
| Source repository | https://github.com/darkmatter-hub/mcp |
| Website | https://darkmatterhub.ai |
| Category | Agent safety & governance (assigned by keyword rule, not by hand) |
Related servers in Agent safety & governance
- Trust Gate4/4Post-quantum, tamper-evident receipts for agent actions. Ed25519 +…
- LoopGrid MCP7/7MCP bridge for tamper-evident evidence around consequential AI and…
- verify-proof7/7Verify timestamp proofs offline, anchor hashes through ProofLedger,…
- Warrant7/7Record an agent's decisions with reasons anyone can re-execute…
- Fabric Verify8/8Signed, publicly logged records of what your AI agent did, with…
- Vaara MCP Server6/7Accountable autonomy MCP server: gating, tamper-evident audit for…