PromptLayer
PromptLayer is a prompt management and observability platform for LLM applications.
Free + paidWebAPIDesktopKoreanLLM-basedMultimodal
Visit websitepromptlayer.com
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PromptLayer is a prompt management and observability platform for LLM applications. It allows developers to manage prompts outside of code, providing version control, real-time logging, and performance evaluation. By acting as a middleware for LLM providers, it enables teams to track, iterate, and collaborate on prompts without constant code deployments.
Key features
- Prompt Versioning
- Real-time Request Logging
- Visual Prompt CMS
- A/B Testing & Evaluation
- Team Collaboration
- Cost & Token Tracking
Pricing
Use cases
- Optimizing prompt performance
- Debugging LLM responses
- Non-technical prompt editing
- Comparing model performance
Who it is for
AI EngineersPrompt EngineersProduct managers
Integrations
OpenAIAnthropicLangChainVercel
Tags
LLMOps
How we verified this
Company, pricing, and feature details come from the primary sources below and our latest verification pass. When sources disagree, the official source and the most recent check win.
Last verified 08/30/2026Verified sources: 2
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