LLMClient — Monitor and Log LLM API Prompts

LLMClient is an open-source proxy for logging prompts and tracking API performance for developers and researchers.

LLMClient is an open-source proxy service that captures and logs every interaction between your applications and large language models. This tool is designed for software developers and business owners who need to monitor API usage, track costs, and debug prompt sequences in real-time. By acting as a central gateway, it provides a transparent view of all outgoing requests and incoming responses without slowing down your production environment. The platform records detailed model options, function calling data, and execution errors to help your technical team identify bottlenecks 24/7. Monitoring these metrics is essential for maintaining high performance in client-facing AI applications throughout 2026. Business leaders can use LLMClient to audit prompt history and ensure data privacy standards are met across different departments. Integrating LLMClient into your current technical stack allows for better resource allocation by highlighting redundant or failed API calls. You can find more details on how to optimize your AI infrastructure at surfai.app. The interface is intentionally simple, focusing on data clarity rather than complex configurations to ensure your team remains productive. Since the project is hosted on GitHub, it provides a cost-effective way to scale your AI operations without high subscription overhead. LLMClient offers a free tier for developers while providing the flexibility to self-host for enterprise-level deployments.

• Pricing: freemium

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