Respan: Unified LLM engineering platform for observability, evaluations, prompt optimization, and AI gateway services.

Respan: Respan (formerly Keywords AI) is a comprehensive LLM engineering platform designed to help teams build, monitor, and optimize AI agents. It unifies observability, evaluations, prompt optimization, and a unified AI gateway into a single interface. The platform allows developers to trace agent execution paths, evaluate performance using LLM-as-judge or human review, manage prompt versions, and access over 500 models through a single API endpoint. It is built to handle massive scale, supporting trillions of tokens while maintaining rigorous security standards like SOC 2 and HIPAA.