Monitor LLM CO₂ in Claude Code & Cursor
Use carbon-llm's MCP server to attribute carbon to your IDE sessions — same token × coefficient model as production /v1/track. Configure the MCP client in your editor; carbon-llm does not store prompts.
Who this is for
Developers and teams who want visibility into assistant token usage and CO₂e while coding — separate from shipping
tenant_idevents from your product's backend.How it works (five steps)
- Create a free account — one login for dashboard and API keys.
- Copy your test or live key from Dashboard → API keys. MCP is not configured in the platform admin console — only keys live in the dashboard; the rest is in your IDE config.
- Point MCP at this host: server URL
{YOUR_ORIGIN}/mcp(public path; rewrites to/api/mcp). - Send the key: header
Authorization: Bearer isv_…(same as REST). - Optional: open
GET /mcp/manifestto verify, then read today's rollups via the session endpoint — details in the technical guide.
Full reference & troubleshooting
IDE file paths (Claude Code vs Cursor) vary by version — the technical page has examples, curl checks, and common errors.