ML Operations

PromptLayer

Prompt management, evaluation and observability for LLM applications

About PromptLayer

PromptLayer is a New York-based platform with a prompt registry, evaluations, observability and agent tracing for LLM applications. A no-code editor lets domain experts change prompts without changing application code.

Common use cases

  • Prompt management
  • Regression testing prompts
  • Monitoring LLM cost and latency
  • Domain expert collaboration

Products and services

Prompt Registry

Visual prompt CMS with versioning and rollback.

Evaluations

Regression and historical evals with A/B testing.

Observability

Cost, latency monitoring and agent tracing.

Key features

  • Prompt versioning
  • No-code prompt editor
  • A/B testing
  • Evals
  • Agent tracing
  • Cost monitoring

Integrations

  • OpenAI
  • Anthropic
  • LangChain
  • Python
  • JavaScript

PromptLayer alternatives

FAQs

Where is it based?

New York City.

Who can edit prompts?

Domain experts via a no-code editor.

Is there a free plan?

Free sign-up is offered; see the pricing page for tiers.

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