CISO Tribune

Vendor comparison · 2 companies

Enkrypt AI vs Promptfoo

Enkrypt AI sells an AI security platform with products for red teaming agents, enforcing runtime guardrails, turning policy into controls, auditing AI data, and scanning and gating MCP tool traffic. Promptfoo builds open-source tools for secure, reliable AI applications. CISO Tribune files both under AI model and agent security and AI firewalls and guardrails. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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  • Enkrypt AI
  • Promptfoo
Enkrypt AI vs Promptfoo: Products, Customers and Funding Compared
Enkrypt AIEnkrypt AI sells an AI security platform with products for red teaming agents, enforcing runtime guardrails, turning policy into controls, auditing AI data, and scanning and gating MCP tool traffic.enkryptai.comPromptfooPromptfoo builds open-source tools for secure, reliable AI applications.promptfoo.dev
What it sells
  • AI Data Risk Audit[1][6]Produces a sign-off packet for Security and Legal on the data an AI system uses.
  • MCP Gateway[1][4][8]Open-source control plane that sits inline between agents and MCP servers.
  • Red Teaming[2][4][5]Simulates real users to uncover application-specific vulnerabilities.
  • Evaluations[2][5]LLM evaluation of prompts and models that can run inside CI workflows.
Categories
Headquarters
Brighton, United StatesSan Francisco, United States[1][3]
Founded
2022[2]2024[1][12]
Ownership and funding
Privately held[1][7]Owned by OpenAI[12]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pages
  • March 9, 2026OpenAI agreed to buy Promptfoo, a startup helping businesses find and fix security issues in AI models during development.[13]
  • March 9, 2026OpenAI announced it has acquired Promptfoo, an AI security startup founded in 2024 to protect LLMs from adversarial attacks.[12]
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, Enkrypt AI sells mainly to teams shipping customer-facing chat or voice agents in regulated industries such as Finance, Healthcare, Insurance, and Government. Its pricing describes plans for startups launching AI, small teams, growing companies with multiple agents, and large enterprises in regulated industries needing VPC or on-prem deployment. Enkrypt AI states that its release packet is meant to give Security, Legal, and Product what they need to approve an agent. Teams adopting MCP are named as a stated audience for its MCP products.Not written yet
Last verified
November 9, 2026November 4, 2026

Where they overlap

  • AI model and agent security is the primary category of both Enkrypt AI and Promptfoo; both are also filed under AI firewalls and guardrails.
  • Both are headquartered in the United States.

Where they differ, field by field

  • Enkrypt AI is also filed under AI governance. Promptfoo is also filed under Static application security testing and Breach simulation and automated pen-testing.
  • Enkrypt AI lists AI Data Risk Audit and MCP Gateway. Promptfoo lists Red Teaming and Evaluations.
  • Enkrypt AI is headquartered in Brighton, United States. Promptfoo is headquartered in San Francisco, United States.
  • Enkrypt AI was founded in 2022. Promptfoo was founded in 2024.
  • Enkrypt AI is privately held. Promptfoo is owned by OpenAI.

How they differ

CISO Tribune files Enkrypt AI under AI model and agent security, AI firewalls and guardrails, and AI governance, with AI model and agent security as its primary category. CISO Tribune files Promptfoo under AI model and agent security, AI firewalls and guardrails, static application security testing, and breach simulation and automated pen-testing, also with AI model and agent security as its primary category. Both companies sell red teaming for AI applications and agents. Enkrypt AI sells a platform that also covers runtime guardrails, a policy engine, an AI Data Risk Audit, an MCP Scanner and an open-source MCP Gateway. Promptfoo sells Red Teaming and Evaluations, which can run inside CI workflows and integrate with CircleCI, Jest and Vitest. Promptfoo also offers an open-source Community version with up to 10k probes per month at no charge.

Enkrypt AI is headquartered in Brighton, United States, was founded in 2022, and is privately held. Promptfoo is headquartered in San Francisco, United States, and was founded in 2024. Promptfoo is owned by OpenAI, which announced its acquisition of Promptfoo on March 9, 2026. Enkrypt AI says it sells mainly to teams shipping customer-facing chat or voice agents in regulated industries such as Finance, Healthcare, Insurance, and Government. Enkrypt AI also names NetApp as a partner for data readiness for Gen AI. Promptfoo describes real estate testing mapped to Fair Housing Act and ECOA requirements.

What it sells: Enkrypt AI

What AI Data Risk Audit does[1][6]
Enkrypt AI Data Risk Audit evaluates the datasets a customer brings for a specific AI system and intended use. Intended uses include TRAIN, RAG, and EVAL. Enkrypt AI Data Risk Audit works across text, audio and images, in multiple languages. It is re-run when datasets or connectors change.
What MCP Gateway does[1][4][8]
MCP Gateway approves, modifies, or blocks tool calls. MCP Gateway runs as a sidecar or gateway in the tool path. Enkrypt AI adds enterprise capabilities such as centralized policy management, tenant-aware enforcement, reporting, and support.

What it sells: Promptfoo

What Red Teaming does[2][4][5]
Promptfoo creates thousands of context-aware attacks tailored to the customer's application. The open-source Community version includes up to 10k probes per month at no charge.
What Evaluations does[2][5]
Promptfoo's LLM evaluation can be integrated into a CircleCI pipeline. Promptfoo can be integrated with test frameworks like Jest and Vitest to evaluate prompts as part of existing testing and CI workflows. Promptfoo provides real-time alerts and automated evaluations to show LLM security status across all projects.

Questions about Enkrypt AI and Promptfoo

What do Enkrypt AI and Promptfoo sell?
Enkrypt AI sells AI Data Risk Audit and MCP Gateway. Promptfoo sells Red Teaming and Evaluations.
Are Enkrypt AI and Promptfoo in the same category?
Yes. AI model and agent security is the primary category of both on CISO Tribune.
Where are Enkrypt AI and Promptfoo headquartered?
Enkrypt AI is headquartered in Brighton, United States. Promptfoo is headquartered in San Francisco, United States.
When were Enkrypt AI and Promptfoo founded?
Enkrypt AI was founded in 2022. Promptfoo was founded in 2024.
Who owns Enkrypt AI and Promptfoo?
Enkrypt AI is privately held. Promptfoo is owned by OpenAI.
Who are Enkrypt AI and Promptfoo sold to?
From its own pages, Enkrypt AI sells mainly to teams shipping customer-facing chat or voice agents in regulated industries such as Finance, Healthcare, Insurance, and Government.
What have Enkrypt AI and Promptfoo announced recently?
March 9, 2026: OpenAI agreed to buy Promptfoo, a startup helping businesses find and fix security issues in AI models during development.

About Enkrypt AI

Enkrypt AI sells an AI security platform with products for red teaming agents, enforcing runtime guardrails, turning policy into controls, auditing AI data, and scanning and gating MCP tool traffic. Enkrypt AI describes the platform as purpose-built to cover every threat, regulation, and modality.

Enkrypt AI Red Teaming finds failure modes across text, audio, and vision, including agents, tools, RAG, and MCP. Enkrypt AI Red Teaming turns findings into prioritized fixes and evidence-ready reports for security, risk, and compliance. Enkrypt AI Red Teaming adds closure evidence and regression tests to a CI gate. Findings can be promoted into Guardrails policies and monitored in production.[3]

Enkrypt AI Guardrails is the runtime layer that approves, modifies, or blocks risky behavior across agents, tools, RAG, and MCP. Every enforcement decision is logged, and Enkrypt AI says each decision includes a policy id, policy version, and reason code. Enkrypt AI Guardrails takes SSO and IAM claims for role-aware and tenant-aware policies, including Okta, Azure AD, and custom JWT claims. Enkrypt AI Guardrails can apply guardrails inline in the MCP Gateway, not just in the model prompt. Enkrypt AI Guardrails is API-first and works with an existing model stack.[4]

Enkrypt AI Policy Engine converts natural-language AI governance policy and regulatory text, including PDFs, into controls. Enkrypt AI Policy Engine enforces those controls across the platform with traceability that can be audited. Controls are reviewed and approved, then published to dev, stage, and prod environments. Policies are versioned, with diff review, staged rollouts, and rollback. Enkrypt AI Policy Engine combines internal governance requirements with external standards into a single control model. OWASP, NIST, and EU AI Act are included as defaults.[5]

Enkrypt AI Data Risk Audit produces a sign-off packet for Security and Legal covering what data an AI system uses, what risk it carries, and what is approved for AI. Enkrypt AI Data Risk Audit evaluates the datasets a customer brings for a specific AI system and intended use. Intended uses include TRAIN, RAG, and EVAL. Enkrypt AI Data Risk Audit can block a dataset for TRAIN and approve it for RAG with conditions. Enkrypt AI Data Risk Audit works across text, audio and images, in multiple languages. Enkrypt AI Data Risk Audit connects to Jira and ServiceNow for remediation and approvals, and is re-run when datasets or connectors change.[6]

Enkrypt AI MCP Scanner discovers tools, analyzes capabilities and permissions, and surfaces high-risk exposure. MCP Scanner covers configuration, permissions, tool schemas, endpoints, and common vulnerability patterns on MCP servers and tool surfaces. MCP Scanner scans internal MCP servers during development and before rollout, not just public MCPs. MCP Scanner scores severity on exploitability and impact, and on exposure. MCP Gateway is open source and sits inline between agents and MCP servers to approve, modify, or block tool calls. Enkrypt AI adds enterprise capabilities to MCP Gateway such as centralized policy management, tenant-aware enforcement, reporting, and support. MCP Gateway runs as a sidecar or gateway in the tool path, in Kubernetes, edge, or service mesh patterns. MCP Scanner findings inform an approved registry and policy defaults, and MCP Gateway enforces those decisions at runtime.[8]

Enkrypt AI says its customer-facing agents offering targets teams shipping customer-facing chat or voice agents in regulated industries such as Finance, Healthcare, Insurance, and Government. Enkrypt AI produces an Agent Release Packet, a single, forwardable document that gives every stakeholder the evidence they need to approve an agent. Enkrypt AI says teams that used to spend 4 to 6 months in review loops ship in 30 days. Enkrypt AI describes a large insurance services provider that used Enkrypt AI to secure its customer-facing AI-powered Chatbot app. Enkrypt AI describes a financial organization that scaled its tax preparation services through an AI-enabled tax chatbot. Enkrypt AI describes a medical device company that wanted to deploy an AI app for personalized medicine adherence. NetApp partnered with Enkrypt AI to ensure data readiness for Gen AI and to remove data risks on its platform.[9][10]

Enkrypt AI lists SOC 2 Type II and ISO 27001 among its security and compliance credentials. Its address is 1660 Soldiers Field Rd. Brighton, MA 02135.[11]

Enkrypt AI on the record

Sources

Enkrypt AI full record

  1. [1]Enkrypt AI | World's Most Comprehensive AI Security PlatformEnkrypt AI · undated page, accessed September 27, 2026 · Tier A
  2. [2]MultimodalaisecurityEnkrypt AI · enkryptai.com · undated page, accessed September 27, 2026 · Tier A
  3. [3]Enkrypt AI Agent Red TeamingEnkrypt AI · undated page, accessed November 6, 2026 · Tier A
  4. [4]Enkrypt AI Agent Guardrails | Secure AI Agents EffortlesslyEnkrypt AI · undated page, accessed November 6, 2026 · Tier A
  5. [5]Enkrypt AI Agent Policy Engine | Secure & Control AI Agents EffortlesslyEnkrypt AI · undated page, accessed November 6, 2026 · Tier A
  6. [6]Enkrypt AI Data Risk Audit | Secure Your AI Data NowEnkrypt AI · undated page, accessed November 6, 2026 · Tier A
  7. [7]Enkrypt AI MCP Scanner: Advanced AI Threat Detection & SecurityEnkrypt AI · undated page, accessed November 6, 2026 · Tier A
  8. [8]Enkrypt AI MCP Gateway | Inline Policy Control for MCP Tool TrafficEnkrypt AI · undated page, accessed November 6, 2026 · Tier A
  9. [9]Secure Customer-Facing Agents | Enkrypt AI Compliance & ReleaseEnkrypt AI · undated page, accessed November 6, 2026 · Tier A
  10. [10]Industry | Enkrypt AIEnkrypt AI · undated page, accessed November 6, 2026 · Tier A
  11. [11]Pricing | Enkrypt AIEnkrypt AI · undated page, accessed November 6, 2026 · Tier A

Promptfoo full record

  1. [1]PressPromptfoo · promptfoo.dev · undated page, accessed November 4, 2026 · Tier A
  2. [2]promptfoo.devPromptfoo · promptfoo.dev · undated page, accessed November 4, 2026 · Tier A
  3. [3]About Promptfoo | AI Security Experts | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  4. [4]Build Secure AI Applications | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  5. [5]Pricing | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  6. [6]Setting up Promptfoo with CircleCI | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  7. [7]Testing prompts with Jest and Vitest | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  8. [8]Finding LLM Jailbreaks with Burp Suite | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  9. [9]SharePoint Integration | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  10. [10]Langfuse integration | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  11. [11]AI Security for Real Estate | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  12. [12]OpenAI acquires Promptfoo to secure its AI agents | TechCrunchTechCrunch · published March 9, 2026 · Tier B
  13. [13]OpenAI Buying AI Security Startup Promptfoo to Safeguard AI Agents - BloombergBloomberg · published March 9, 2026 · Tier B

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