kitio.aiAdded Oct 28, 2026
PromptLayer
Freemium · $49/moPrompt management and evals for teams where non-engineers edit prompts
What is PromptLayer?
PromptLayer is a platform for versioning, testing and monitoring prompts, designed so product managers and domain experts can edit prompts without code changes. Engineering teams log LLM requests to it and pull the latest prompt versions at runtime.
The prompt registry stores versions with release labels, and a visual editor lets non-engineers update them. Evaluation pipelines run regression tests and backtests on historical requests before a change ships.
Request logging shows cost, latency and outputs for each call, searchable by tags and metadata. A free tier suits individuals, and paid plans add team seats and higher limits.
Features
- Prompt registry
- Visual prompt editor
- Evaluation pipelines
- Request logging
- Release labels
Tags
Releases
+ Submit new release- Listed
PromptLayer was added to the directory.
Organization
PromptLayer
🇺🇸 United States
Listed by kitio.ai · unverified owner
Pricing
- Pricing model
- Freemium
- Paid options from
- $49/mo
- Billing frequency
- Monthly
PromptLayer plans
Free
Free
- 5 users
- 2.5K requests/month
- 1 workspace
Pro
$49/mo
- Unlimited workspaces and playgrounds
- 150MB max per dataset
- Overage $0.003 per request
Team
$500/mo
- 25 users
- 100K+ requests/month
- Overage $0.002 per request
Enterprise
Custom
- Custom limits
- RBAC and deployment approvals
- HIPAA with BAA
Prices in USD, checked Oct 28, 2026. Plans change often, so confirm on the PromptLayer site.Official pricing
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Pros and cons
Pros
- Friendly for non-engineers
- Simple prompt versioning
- Backtests on real traffic
Cons
- Less depth on agent tracing
- Limits on lower plans
- Smaller ecosystem
Prompts & results
No prompts yet. Add your own prompt and output to help others use this tool.
Share a prompt
Reviews
Q&A
What is PromptLayer?
PromptLayer is a platform for versioning, testing and monitoring prompts, designed so product managers and domain experts can edit prompts without code changes. Engineering teams log LLM requests to it and pull the latest prompt versions at runtime.
How much does PromptLayer cost?
PromptLayer is freemium, with paid plans from $49/mo.
Is there a free version of PromptLayer?
Yes. PromptLayer has a free plan, and paid plans add more usage and features.
What are the main features of PromptLayer?
Prompt registry, Visual prompt editor, Evaluation pipelines, Request logging, Release labels.
Who makes PromptLayer?
PromptLayer is made by PromptLayer.
What are the best alternatives to PromptLayer?
Popular alternatives include Langfuse, LangSmith, Weights & Biases.