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Companies / Promptfoo

Promptfoo tech stack

promptfoo.dev

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.

Classified asAI and machine learningDeveloper tools

The Promptfoo homepage

Vendors of Promptfoo and the evidence for each

Promptfoo declares 8 subprocessors, including AI providers OpenAI.

VendorCategoryEvidenceLevel
CloudflareCloud and infrastructureConfirmed
Subprocessor listProcesses data for the company11 Nov 2026Source
Websiteheader: cf-ray: a58e05c4eb6608f0-LAX11 Nov 2026Source
Companies using Cloudflare
FusionAuthSecurity and identityConfirmed
Subprocessor listProcesses data for the company11 Nov 2026Source
Companies using FusionAuth
GitHubDeveloper toolsConfirmed
Subprocessor listProcesses data for the company11 Nov 2026Source
Companies using GitHub
Google CloudCloud and infrastructureConfirmed
Subprocessor listNamed as Google Cloud Platform · Processes data for the company11 Nov 2026Source
Companies using Google Cloud
Microsoft AzureCloud and infrastructureConfirmed
Subprocessor listProcesses data for the company11 Nov 2026Source
Companies using Microsoft Azure
OpenAIAI and LLM providersConfirmed
Subprocessor listProcesses data for the company11 Nov 2026Source
Companies using OpenAI
PostHogAnalyticsConfirmed
Subprocessor listProcesses data for the company11 Nov 2026Source
Companies using PostHog
SentryObservabilityConfirmed
Subprocessor listProcesses data for the company11 Nov 2026Source
Companies using Sentry
Google WorkspaceProductivityLikely
Websitemx: smtp.google.com.11 Nov 2026Source
Companies using Google Workspace

Questions about Promptfoo

Vendor's own statement, retrieved from the source URL on the date shown. StrataDB does not verify the underlying claim. Data sources.

See Promptfoo's full stack

Every vendor with its source and date, and an alert when Promptfoo adds or drops one. The same lookup works for any company.

  • 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