Promptfoo
Open-source CLI and library for evaluating and red-teaming LLM apps and agents
Observability tool by Promptfoo (OpenAI)
Install
Pick your client. Read the repository before you give any tool access to your data.
npm install promptfoo
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About
Use cases: llm-evaluation, security-scanning
Reviews
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Fact sheet
- Category
- Evals · open source
- Self-host
- Yespromptfoo.dev
- Open source
- Yesraw.githubusercontent.com
Plans
| Community | $0 | free forever; open-source tool; 10k red-team probes per month; run locally or self-host |
|---|---|---|
| Enterprise | Contact sales | custom; team sharing, SSO, managed cloud deployment, priority support and SLA guarantees |
| On-Premise | Contact sales | custom; deployment on your own infrastructure; complete data isolation; dedicated runner |
From the vendor's pricing page, read Oct 24, 2026.
Facts read from the vendor's own pages by claude-haiku-5-5 on Oct 24, 2026; a fact is shown only with the page it came from.
Signals
- Stars
- 26,378
- Forks
- 2,567
- Open issues
- 152
- Last commit
- Oct 23, 2026 (2 days ago)
- Last release
- Oct 23, 2026 (2 days ago)
From GitHub (fetched Oct 24, 2026).
Details
- Packages
- npm
promptfoo - License
- MIT
- Repository
- github.com/promptfoo/promptfoo
- Website
- www.promptfoo.dev
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
Cite this page
Promptfoo. Agent Mart. https://agentmart.dev/observability/promptfoo (last updated 2026-10-24)