/

Companies / Promptfoo / FusionAuth

Does Promptfoo use FusionAuth?

Yes

We hold strong evidence for this.

  • The company names it in its own subprocessor list, a statement that this vendor handles its customers' data.

How we know

Subprocessor listProcesses data for the company11 Nov 2026Source

About Promptfoo

Promptfoo provides automated testing and security tools for AI applications, including red teaming, guardrails, and evaluations. It serves developers and enterprises building AI systems.

Summarized from its homepage on 4 Nov 2026.

AI and machine learningDeveloper tools

What else Promptfoo uses

Promptfoo has evidence for 9 vendors. The strongest:

CloudflareGitHubGoogle CloudMicrosoft AzureOpenAIPostHogSentryGoogle Workspace

See the full Promptfoo tech stack

Other companies using FusionAuth

All 12 companies using FusionAuth

Check any company's vendors in seconds

See Promptfoo's full stack with a source for every vendor, and ask the same question about any company from the API, Claude or your browser.

  • Every company and vendor, with its public source
  • 100 API calls a month, plus MCP and the Chrome extension
  • Work email only. No card, no sales call