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.
Every prompt. Logged.
Built for your AI stack
Run prompts against GPT models
Test against Claude instantly
Full audit trail, every save
Per-prompt USD spend dashboard
Fill variables, run, see cost
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?

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.
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.
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
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.
