HumanLoop Shutdown: Guide to Migrating Your Prompts and Evals to PromptLayer

HumanLoop is set to close on September 8, 2025, prompting users to consider PromptLayer as a comprehensive alternative for prompt management, evaluations, and observability. Founded in 2023, PromptLayer is described as the "Git for prompts," offering features such as version control through a Prompt Registry, automated evaluations, complete logging analytics, and a no-code collaboration interface suitable for non-technical team members. It provides advanced A/B testing, native agent support, and is compatible with various LLM frameworks. The platform is actively developed, with recent funding ensuring rapid feature releases and direct user support. Users are encouraged to migrate by exporting their data from HumanLoop and setting up PromptLayer, which promises a seamless transition with enhanced capabilities and competitive pricing.