PromptLayer

PromptLayer is an AI engineering platform that helps teams build, evaluate, and monitor AI products. It combines a prompt registry and visual prompt management system with LLM evaluations, production observability, and agent tracing. Teams can edit, version, test, and deploy prompts through a dashboard, while domain experts contribute without changing application code or waiting for engineering releases.

The platform supports collaboration through version notes, comparisons, comments, rollbacks, and controlled A/B testing. Teams can run dataset-backed evaluations, historical backtests, regression tests, human reviews, and automated grading before updates reach production. They can also compare models and parameters, run bulk prompt jobs, and evaluate complete agent workflows.

For monitoring, PromptLayer connects production requests, logs, and traces to the prompt versions that generated them. Users can inspect failures and tool calls, find execution records, and track usage, cost, token consumption, and latency across features and models. These capabilities serve AI teams working in areas such as customer support, education, legal services, and sales.