mcpbeat

witness MCP Server

io.github.IngTian/witness
local only

witness runs on your own machine — the client starts it, so there is no endpoint to ping. 827 installs a week from npm. Last commit 4 Aug 2026.

Second brain for Claude Code & OpenCode: distills how your patterns and knowledge evolve over time.

Installs per day peak 452 · avg 99 · +30% w/w
a month agotoday
827
Installs / week
npm · @witness-ai/opencode
9
Stars
4 open issues
4 Aug 2026
Last commit
0 releases in 90 days
MIT
License
Go

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 witness -- npx -y @witness-ai/opencode
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "witness": {
      "args": [
        "-y",
        "@witness-ai/opencode"
      ],
      "command": "npx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.witness]
command = "npx"
args = ["-y", "@witness-ai/opencode"]
.cursor/mcp.json
{
  "mcpServers": {
    "witness": {
      "args": [
        "-y",
        "@witness-ai/opencode"
      ],
      "command": "npx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "witness": {
      "args": [
        "-y",
        "@witness-ai/opencode"
      ],
      "command": "npx"
    }
  }
}

witness — questions

Answers built from our own checks of this server.

Why is there no uptime for witness?
witness 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 @witness-ai/opencode was installed 827 times last week.
How do I connect witness?
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 runs locally, so the command pulls @witness-ai/opencode straight from npm; nothing to host, nothing to sign up for.
How many people use witness?
The npm package @witness-ai/opencode was installed 827 times in the last week. Week over week that is +30%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is witness open source?
Yes — it is published under the MIT licence, written in Go, 9 stars on GitHub and 4 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.