Free tierSave, organize, share, and improve prompts across ChatGPT, Claude, and Gemini.
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Coding & Dev Checked Aug 22, 2026
PromptLayer
Log and evaluate LLM requests so prompt changes can be measured instead of guessed.
Best for: Developers and small AI teams building applications with prompts, tools, and multiple model calls.
What you can do with it
- Track prompt and model changes across releases
- Inspect a failed or slow LLM request
- Create a shared prompt registry
- Run small evaluation sets before shipping a change
Good to know
- Documented free plan
- Prompt versioning and request logs
- Useful evaluation workflow
- Built for developer teams
Limitations
- Requires SDK or API integration
- Free plan has short retention and small limits
- Adds another service to the AI stack
Other official links
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