Free tierSave, organize, share, and improve prompts across ChatGPT, Claude, and Gemini.
Business & Automation
All tools
View more Free tier 
Free tier
Free
Access
Free tier
0
Coding & Dev Checked Sep 24, 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
Keep exploring
Similar tools
Free tier Free tierGenerate and edit images or video with a broad set of creative AI workflows in one platform.
Image & Design
FreeUse categorized prompt ingredients and writing formulas to make a vague AI request more specific.
Text & Writing