Portkey ranks #8 in LLM Observability Evals & Gateways AI search.

Portkey is a San Francisco-based AI infrastructure company founded in January 2023 by Rohit Agarwal and Ayush Garg. It provides a unified production stack for generative AI teams, combining an AI Gateway, LLM observability, guardrails, prompt management, and enterprise governance in one platform. Portkey routes traffic to 1,600+ large language models across 60+ providers via a single OpenAI-compatible API, processing over 500 billion tokens daily for 24,000+ organizations. Its open-source gateway has accumulated 10.8k+ GitHub stars. Recognized as a 2025 Gartner Cool Vendor in LLM Observability and top-rated on G2, Portkey raised a $15M Series A in February 2026. In April 2026, Palo Alto Networks announced its intent to acquire Portkey to serve as the AI Gateway for the Prisma AIRS security platform.

Portkey is a full-stack LLMOps platform serving as a unified control plane for production AI. It offers an AI Gateway (routing, fallbacks, load balancing, and semantic caching across 1,600+ LLMs), real-time observability (logs, traces, cost tracking, and 40+ metrics), guardrails (PII redaction, content filtering, and prompt injection prevention), a Prompt Engineering Studio (versioning, deployment, and playground), an MCP Gateway, and enterprise governance (RBAC, SSO, audit logs, and budget controls). Deployable as managed SaaS, hybrid, or fully self-hosted with a 3-line code integration claim and 0.999% uptime SLA.