io.github.darkmatter-hub/verifiable-agent-audit-trail
DarkMatter
Tamper-evident records of AI agent decisions. Verify offline, or publish a proof link.
alive probed 2026-10-15
5tools
1.0ktokens in Claude Opus 5.5
1.1ktokens in Claude Code
0.5 %of a 200k context window
577o200k_base estimate
344 msto initialize
7 msto list tools
- Run it
- npx -y @darkmatterhub/mcp-server@0.4.0 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- darkmatter-mcp 0.4.0
- Capabilities
- tools
- Instructions
- none
- Claude count
- Claude Opus 5.5, measured 2026-10-15. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/darkmatter-hub/mcp
- Website
- https://darkmatterhub.ai
- Registry
- active, updated 2026-08-28 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| darkmatter_commit | 309 | 54 % |
| darkmatter_verify | 85 | 15 % |
| darkmatter_replay | 77 | 13 % |
| darkmatter_export | 68 | 12 % |
| darkmatter_list_sessions | 38 | 7 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.darkmatter-hub/verifiable-agent-audit-trail)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.