Cursor

Project config, .cursor/mcp.json:

{
  "mcpServers": {
    "cosmic": {
      "url": "https://mcp.cosmicjs.com/v1/buckets/your-bucket-slug",
      "headers": {
        "Authorization": "Bearer your-read-key:your-write-key"
      }
    }
  }
}

Drop :your-write-key for read-only tools. The key rules are in MCP Server. Install the coding skill with:

npx skills add cosmicjs/skills

Or install the Agent Plugin, which packages this server with the skills for Cursor. The plugin reads COSMIC_BUCKET_SLUG, COSMIC_READ_KEY, and COSMIC_WRITE_KEY from the environment.