PromptLayer

Streamlines prompt engineering through visual management and evaluations. PromptLayer is the prompt management platform for AI teams. Version prompts, run LLM evals, and monitor agents in production with tracing, logs, and regression sets. PromptLayer is a platform that handles prompt management, evaluations, and observability for LLM apps, with visual tools for teams. Install the Python wrapper via pip, add pl return id to your API calls, and logs appear in the dashboard automatically. The no code editor lets product or content teams edit and test prompts directly without engineering help. It supports regression tests, model comparisons, bulk jobs, and graders for scoring outputs against datasets. Prompts work across models like Claude or Llama through agnostic templates and APIs. It offers a free forever tier for basics, with paid plans scaling by users for advanced features like unlimited evals.