Plugin

Overview

Plugin is a Model Context Protocol (MCP) server: Circulara Observe MCP plugin - meters your AI agents' token spend and carbon, free tier. In practice that means any MCP-compatible AI assistant can call Plugin's tools directly — the model decides when to use them in a conversation or agent run.

It runs locally: the npm package @circulara/plugin speaks MCP over stdio on your machine. Configuration happens through environment variables — you'll need CIRCULARA_BACKEND_URL, CIRCULARA_TENANT_ID, CIRCULARA_TOKEN (among others). The current release is v0.1.2, with source at CircularRoute/circulara-core on GitHub.

Plugin is listed under AI & Agents on mcp.site and works with any MCP client — Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed and the rest of the ecosystem — using the install snippets below. If you maintain Plugin for circulara.ai, claim this listing to verify ownership, earn the Verified badge, and keep the details current.

Installation

// claude_desktop_config.json
{
  "mcpServers": {
    "plugin": {
      "command": "npx",
      "args": [
        "-y",
        "@circulara/plugin"
      ],
      "env": {
        "CIRCULARA_BACKEND_URL": "<circulara-backend-url>",
        "CIRCULARA_TENANT_ID": "<circulara-tenant-id>",
        "CIRCULARA_TOKEN": "<circulara-token>",
        "CIRCULARA_SEAT_ID": "<circulara-seat-id>"
      }
    }
  }
}

Requires CIRCULARA_BACKEND_URL, CIRCULARA_TENANT_ID, CIRCULARA_TOKEN