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mcp/harbor
Claude Code

plugin for Claude Code

ai.circulara/plugin

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

client:Claude Code transport:stdio runtime:npm

Install plugin in Claude Code

run in your project directory

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

claude mcp add plugin -e CIRCULARA_BACKEND_URL=<CIRCULARA_BACKEND_URL> -e CIRCULARA_TENANT_ID=<CIRCULARA_TENANT_ID> -e CIRCULARA_TOKEN=<CIRCULARA_TOKEN> -e CIRCULARA_SEAT_ID=<CIRCULARA_SEAT_ID> -e CIRCULARA_USER_ID=<CIRCULARA_USER_ID> -- npx -y @circulara/plugin

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

plugin in other clients

plugin MCP server