Respan

Respan, formerly Keywords AI, is an AI gateway and observability platform for developers building agents and LLM-powered applications. It helps teams route model requests, trace agent workflows, evaluate outputs, monitor costs, manage prompts, and improve production AI systems from one place. The platform includes logs, scores, datasets, evaluators, prompt management, gateway features, retries, fallback, request caching, load balancing, rate limits, and spend controls. This makes it useful for AI products that need both model access and operational visibility. Respan is especially valuable for SaaS founders and technical teams building agents, chatbots, internal copilots, support automation, research tools, and workflows that rely on multiple model providers. Instead of managing separate observability, gateway, and eval systems, teams can use one layer for tracing and control. For FutureStack, Respan fits Developer Tools because it supports production AI infrastructure. It is best for developers and founders who want better visibility, reliability, and cost control across AI agent and LLM application workflows.