AI Governance & Security Vendor Wiki

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Portkey

Primary category: ai-gateway. The AI gateway / control plane Palo Alto Networks bought to anchor Prisma AIRS.

One-liner — A high-performance AI gateway and control plane that sits between enterprise apps and model APIs — routing, rate-limiting, caching, governing, and observing LLM traffic — acquired by palo-alto-networks in May 2026 to become the gateway layer of prisma-airs.

What it does — Portkey is the “single exit door” for model traffic: one API endpoint in front of many model providers, with routing/failover, load balancing, cost and rate controls, prompt/response logging, caching, and guardrail hooks. It markets itself as a unified control plane for production AI and claims to process trillions of tokens per month at the low latency needed for agent-to-agent communication.

Where it sits in the stack — Model/prompt-layer ai-gateway. As a chokepoint on model traffic it primarily controls outbound data flows (what leaves to which model/provider) and is the natural enforcement point to bolt untrusted-input inspection (prompt injection screening) onto. Under PANW it becomes the AI Gateway that feeds Prisma AIRS three capabilities: AI runtime security (traffic inspection), agent identity security, and AI observability.

Deployment & architecture — Inline gateway/proxy deployed as SaaS or self-hosted, fronting provider APIs via a unified API; SDKs and an OpenAI-compatible interface; integrates with observability and guardrail tooling. Designed for high-throughput agentic workloads.

Positioning & differentiators — Known for combining a fast gateway with built-in governance/observability rather than being a thin proxy. Nearest neighbors: litellm (OSS routing), kong (API-gateway lineage, MCP), truefoundry, cloudflare AI Gateway, openrouter, and f5 (which acquired CalypsoAI). Post-acquisition, Portkey’s differentiator is being natively wired into a full AI-security platform.

Ownership, funding & M&A — Founded 2023 (Rohit Agarwal, Ayush Garg); HQ San Francisco. Raised ~$3M seed (Lightspeed, 2023) and a $15M Series A led by Elevation Capital announced 2026-02-19. Acquired by palo-alto-networks — VERIFIED: intent announced 2026-04-30, acquisition completed 2026-05-29; financial terms undisclosed. The seed flag “acq by Palo Alto” is confirmed against PANW’s own completion press release. Notably, the acquisition came only ~3 months after Portkey’s Series A — a fast exit.

CTO / hedge-fund lens — An AI gateway is Day-1 if you run LLM apps and want one governed exit door for model traffic (logging, cost control, provider failover, policy). For a fund, Portkey’s value is now tied to the Prisma AIRS / PANW roadmap; an independent buyer who wanted a neutral gateway may prefer OSS (litellm) or a non-acquired vendor to avoid platform lock-in. Watch for whether Portkey remains usable standalone or only within Prisma AIRS.

Competitors / alternatives — litellm, kong, truefoundry, cloudflare, openrouter, f5.

Open questions / to verify

  • Whether Portkey stays available as a standalone product or only inside Prisma AIRS.
  • Continued support for the open-source / self-hosted gateway under PANW.
  • Acquisition price (undisclosed).

Sources

History

  • [2026-06-28] Stub created from seed registry.
  • [2026-06-28] Researched; CONFIRMED seed M&A flag: acquired by Palo Alto Networks (announced 2026-04-30, closed 2026-05-29, terms undisclosed) against PANW completion press release. Becomes Prisma AIRS AI Gateway. Established founded 2023, SF HQ, ~$18M total funding incl. $15M Series A (Feb 2026) only ~3 months pre-acquisition. Raised ownership_confidence low→high.

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