Lunar.dev is an open-source platform designed to manage, govern, and optimize third-party API consumption across applications and AI agent workloads at scale. It serves as a unified API Gateway, providing real-time visibility, policy enforcement, and security controls over all agentic traffic, including Large Language Models (LLMs), Model Control Protocol (MCP) tools, and APIs. By integrating Lunar.dev, organizations can ensure safe and compliant AI adoption without hindering innovation. Key Features and Functionality: - Live API Traffic Visibility: Monitor every model, tool, and agent interaction in real-time, tracking metrics such as latency, errors, costs, and token usage. - AI-Aware Policy Enforcement: Implement fine-grained rules to control agent access, enforce rate limits, manage costs, and apply budgets, ensuring compliance and security across the AI stack. - Advanced Traffic Shaping: Optimize performance and cost by dynamically routing requests across LLM providers, applying rate limits, retries, priority queues, and circuit breakers to manage load and ensure reliability. - MCP Registry and Customization: Build an approved catalog of tools and connectors for enterprise use, assign scoped environments for agents, and configure tools according to company policies and compliance standards. - AI Agent Sandbox: Test agent and MCP behavior in a secure environment before production, conduct lineage analysis to understand relationships between agents, LLMs, MCP tools, and APIs, and evaluate risks to detect security exposures and performance regressions prior to deployment. Primary Value and Problem Solved: Lunar.dev addresses the critical need for enterprises to safely adopt AI at scale by providing a centralized control point for all agentic traffic. It ensures that AI agents, models, and tools operate within defined policies and compliance boundaries, offering real-time monitoring, policy enforcement, and security measures. This governance framework protects sensitive data, prevents unauthorized access, and maintains operational resilience, enabling organizations to innovate with AI technologies confidently and securely.