ai.circulara/plugin MCP Server

Name: ai.circulara/plugin MCP Server
Author: ai.circulara

ai.circulara/plugin

Repository Registry

What is the ai.circulara/plugin MCP server?

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

How to install ai.circulara/plugin

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

CIRCULARA_BACKEND_URL
required
Your Circulara Observe backend URL - copy from the Connect page after signing in at https://plugin.circulara.ai
CIRCULARA_TENANT_ID
required
Your workspace ID - from the Connect page
CIRCULARA_TOKEN
required
secret
Your signed workspace token - from the Connect page (keep secret)
CIRCULARA_SEAT_ID
required
Your seat ID - from the Connect page
CIRCULARA_USER_ID
required
Your email / identity - from the Connect page

Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "plugin": {
      "command": "npx",
      "args": [
        "-y",
        "@circulara/plugin",
        "-y",
        "-p",
        "@circulara/plugin",
        "circulara-mcp"
      ],
      "env": {
        "CIRCULARA_BACKEND_URL": "<YOUR_CIRCULARA_BACKEND_URL>",
        "CIRCULARA_TENANT_ID": "<YOUR_CIRCULARA_TENANT_ID>",
        "CIRCULARA_TOKEN": "<YOUR_CIRCULARA_TOKEN>",
        "CIRCULARA_SEAT_ID": "<YOUR_CIRCULARA_SEAT_ID>",
        "CIRCULARA_USER_ID": "<YOUR_CIRCULARA_USER_ID>"
      }
    }
  }
}

Cursor

~/.cursor/mcp.json

{
  "mcpServers": {
    "plugin": {
      "command": "npx",
      "args": [
        "-y",
        "@circulara/plugin",
        "-y",
        "-p",
        "@circulara/plugin",
        "circulara-mcp"
      ],
      "env": {
        "CIRCULARA_BACKEND_URL": "<YOUR_CIRCULARA_BACKEND_URL>",
        "CIRCULARA_TENANT_ID": "<YOUR_CIRCULARA_TENANT_ID>",
        "CIRCULARA_TOKEN": "<YOUR_CIRCULARA_TOKEN>",
        "CIRCULARA_SEAT_ID": "<YOUR_CIRCULARA_SEAT_ID>",
        "CIRCULARA_USER_ID": "<YOUR_CIRCULARA_USER_ID>"
      }
    }
  }
}

Windsurf

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "plugin": {
      "command": "npx",
      "args": [
        "-y",
        "@circulara/plugin",
        "-y",
        "-p",
        "@circulara/plugin",
        "circulara-mcp"
      ],
      "env": {
        "CIRCULARA_BACKEND_URL": "<YOUR_CIRCULARA_BACKEND_URL>",
        "CIRCULARA_TENANT_ID": "<YOUR_CIRCULARA_TENANT_ID>",
        "CIRCULARA_TOKEN": "<YOUR_CIRCULARA_TOKEN>",
        "CIRCULARA_SEAT_ID": "<YOUR_CIRCULARA_SEAT_ID>",
        "CIRCULARA_USER_ID": "<YOUR_CIRCULARA_USER_ID>"
      }
    }
  }
}

VS Code

.vscode/mcp.json

{
  "servers": {
    "plugin": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@circulara/plugin",
        "-y",
        "-p",
        "@circulara/plugin",
        "circulara-mcp"
      ],
      "env": {
        "CIRCULARA_BACKEND_URL": "<YOUR_CIRCULARA_BACKEND_URL>",
        "CIRCULARA_TENANT_ID": "<YOUR_CIRCULARA_TENANT_ID>",
        "CIRCULARA_TOKEN": "<YOUR_CIRCULARA_TOKEN>",
        "CIRCULARA_SEAT_ID": "<YOUR_CIRCULARA_SEAT_ID>",
        "CIRCULARA_USER_ID": "<YOUR_CIRCULARA_USER_ID>"
      }
    }
  }
}

Claude Code

claude mcp add plugin --env CIRCULARA_BACKEND_URL=<YOUR_CIRCULARA_BACKEND_URL> --env CIRCULARA_TENANT_ID=<YOUR_CIRCULARA_TENANT_ID> --env CIRCULARA_TOKEN=<YOUR_CIRCULARA_TOKEN> --env CIRCULARA_SEAT_ID=<YOUR_CIRCULARA_SEAT_ID> --env CIRCULARA_USER_ID=<YOUR_CIRCULARA_USER_ID> -- npx -y @circulara/plugin -y -p @circulara/plugin circulara-mcp