Live for OpenAI + Anthropic

Ship better prompts. Know what they cost.

PromptLedger gives you a versioned prompt library with one-click rollback and a per-prompt cost dashboard. Edit, test, and track spend without filing a pull request.

Get Started

Built for your AI stack

OpenAI

Run prompts against GPT models

Anthropic

Test against Claude instantly

Version History

Full audit trail, every save

Cost Analytics

Per-prompt USD spend dashboard

Live Test Runner

Fill variables, run, see cost

Secure Key Vault

API keys encrypted server-side

How it works

Write a prompt, save a version, run a live test, and read the cost. Four steps. No code required.

Run v3 of the support-reply prompt with topic='billing' and tone='formal'. What did it cost?

PM user

Test any prompt live

Fill your template variables and run against OpenAI or Anthropic. See the response, token count, and exact USD cost in one view.

OpenAI + Anthropic

Bring your own API keys. PromptLedger encrypts them server-side and routes runs to the right provider.

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Spot your cost outliers

The analytics dashboard shows total spend, run counts, and a 30-day cost chart. Filter by prompt or date to find the expensive ones fast.

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Versions

Roll back fast

Every save is an immutable snapshot. One click restores any prior version. No git, no deploys, no engineer needed.

I had no idea one prompt was eating 40% of our API budget until I saw it broken out per-prompt. That single view paid for itself.

Features

Version control, live testing, and cost tracking in one place.

Control that compounds

Version history and cost visibility close the two gaps that slow every AI team down.

No more mystery regressions

Every prompt change is timestamped. Roll back in one click when a deploy breaks output quality.

See spend per prompt

Stop guessing which prompt is burning budget. The dashboard names it with exact USD figures.

One plan. Full access.

Prompt library, version history, cost analytics. No feature tiers.

ProPopular

$9/month

From brief to done: Sign up and navigate


  • Integrations
  • Core workflows
  • Prompt Library (/home)
  • Create the first prompt
  • Test the prompt live
  • Built for teams
  • Fast onboarding
  • New Prompt (/home/prompts/new)

Questions answered

Straight answers about what PromptLedger does today. No roadmap promises, no vague capability claims.

Stop guessing. Start tracking.

Get StartedYour prompts. Versioned from day one.