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local only

Plugin runs on your own machine — the client starts it, so there is no endpoint to ping. 79 installs a week from npm. Last commit 16 Jul 2026.

Circulara Observe MCP plugin - meters your AI agents' token spend and carbon, free tier.

Installs per day peak 36 · avg 12 · +39% w/w
a month agotoday
79
Installs / week
npm · @circulara/plugin
0
Stars
0 open issues
16 Jul 2026
Last commit
0 releases in 90 days
License
TypeScript

Nothing serious here today

Today is the operative word: we check Plugin every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

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

This one needs environment variables set before it will start: CIRCULARA_BACKEND_URL (Your Circulara Observe backend URL - copy from the Connect page after signing in at https://plugin.circulara.ai), CIRCULARA_TENANT_ID (Your workspace ID - from the Connect page), CIRCULARA_TOKEN (Your signed workspace token - from the Connect page (keep secret)), CIRCULARA_SEAT_ID (Your seat ID - from the Connect page), CIRCULARA_USER_ID (Your email / identity - from the Connect page). The author declared them in the registry entry; get the values from the project itself.

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answering

Plugin — questions

Answers built from our own checks of this server.

Why is there no uptime for Plugin?
Plugin 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 @circulara/plugin was installed 79 times last week.
How do I connect Plugin?
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 @circulara/plugin straight from npm; nothing to host, nothing to sign up for.
How many people use Plugin?
The npm package @circulara/plugin was installed 79 times in the last week. Week over week that is +39%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Plugin open source?
We cannot say either way: written in TypeScript and 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.