l6e

l6e is a budget enforcement layer for AI coding agents, implemented as an MCP server that tracks token usage and enforces spending limits. It solves the problem of agents running up costs without awareness, prompting them to plan and scope more tightly. The product targets developers and engineering teams using Cursor, Claude Code, Windsurf, or any MCP-compatible client, from freelancers to enterprises. It is positioned as a lightweight, privacy-respecting tool that only reads token counts, not prompts, and integrates seamlessly into existing workflows.

Key features

• Budget enforcement via MCP server
• Token usage tracking
• Real-time remaining budget display
• Automatic budget exhaustion alerts
• Works with Cursor, Claude Code, Windsurf
• Privacy-preserving: reads only token counts
• Import billing data for calibration
• Session-based budget management