Tetrate Agent Router vs. Portkey: Which AI Gateway for Enterprise?
Tetrate Agent Router vs. Portkey: Which AI Gateway for Enterprise?
Last updated: June 2026
TL;DR
Portkey was acquired by Palo Alto Networks (closed May 29, 2026) and is now part of the Prisma AIRS security platform. If you are evaluating Portkey today, you are evaluating a product whose roadmap, pricing, and independence are now determined by a large enterprise security vendor. Tetrate Agent Router is an independent, purpose-built AI gateway on the Envoy AI Gateway data plane — by the team that created it.
What each product is for
Portkey was designed around the application: routing, retries, prompt versioning, caching, and observability for LLM apps. It is now part of Palo Alto Networks’ Prisma AIRS platform, where it serves as the foundational AI gateway for monitoring, orchestrating, and governing AI interactions across enterprise environments.
Tetrate Agent Router is designed around the organization: a governed control point with authenticated identity, per-team token attribution, runtime guardrails, and compliance-grade audit — built on the Envoy AI Gateway data plane by the team that created the project, with Bloomberg.
Both expose an OpenAI-compatible API across multiple LLM providers. The divergence is scope and ownership: Portkey is now a component inside a security platform; Tetrate Agent Router is an independent, purpose-built product.
What the Palo Alto Networks acquisition means for Portkey customers
Palo Alto Networks announced its intent to acquire Portkey on April 30, 2026, and closed the deal on May 29, 2026. Portkey is now integrated into Prisma AIRS — Palo Alto Networks’ AI security platform — alongside Chronosphere (observability) and Idira (agent identity security).
For enterprise buyers evaluating Portkey, three questions are now relevant:
Roadmap independence: Portkey’s product direction is now determined by Palo Alto Networks’ Prisma AIRS roadmap, not the original Portkey team’s priorities. Features that served developer-focused use cases may be deprioritized in favor of security-platform integration.
Platform lock-in: Portkey’s value proposition is increasingly tied to the broader Palo Alto Networks ecosystem. Organizations not already running Prisma products may find the integration points less useful, and the exit path harder over time.
Pricing trajectory: Acquisitions into enterprise security platforms historically move pricing upmarket. Portkey’s current pricing may not reflect where it lands post-integration.
Tetrate is an independent company with a single focus: AI gateway and application networking infrastructure. There is no acquisition uncertainty, no security-platform dependencies, and the product is built by the team that co-created and maintains the underlying Envoy AI Gateway open-source project.
One control plane, distributed data planes
Portkey is a managed SaaS — your AI traffic routes through their infrastructure (with a self-hosted enterprise option). Tetrate Agent Router Enterprise runs a different architectural model: one Tetrate-managed control plane, with data planes deployed wherever your agents run — Tetrate-hosted, inside your own cloud VPC (AWS, Azure, GCP), on-premises, at the edge, or per-region with localized model catalogs and data controls. You can run different guardrails, different model catalogs, and different compliance policies per data plane, all governed from a single control point.
This matters when agents span multiple teams, geographies, or regulatory jurisdictions. A financial services firm running agents in the EU and US can enforce GDPR-grade controls on the EU data plane and different policies on the US plane — from the same Tetrate-managed control plane, without duplicating logic in each application. Portkey’s architecture does not support this model; verify current Portkey self-hosted multi-region capabilities with Palo Alto Networks post-acquisition.
Head-to-head comparison
| Portkey (now Prisma AIRS) | Tetrate Agent Router | |
|---|---|---|
| Ownership | Palo Alto Networks (acquired May 2026) | Independent |
| Design center | Application layer → security platform integration | Org-wide control plane |
| Foundation | Proprietary managed | Envoy + Go |
| Deployment | Managed SaaS (+ self-host enterprise; verify post-acquisition) | Tetrate-managed control plane + data planes in VPC/on-prem/per-region/edge (not fully customer-hosted) |
| Identity on requests | Enterprise SSO | Authenticated identity bound to every request |
| Cost attribution | Observability dashboards + budgets | Per-person / team / agent / project; showback + chargeback |
| Runtime guardrails | Prompt-level guardrails | PII redaction, policy enforcement, behavior supervision |
| MCP / tool governance | Verify current post-acquisition docs | Native MCP gateway: curated catalog, profiles, OAuth + API-key auth |
| Audit / compliance | Yes (enterprise tier) | Immutable audit logs; EU AI Act-grade |
| Envoy AI Gateway lineage | No | Co-creator and maintainer |
Choose Portkey / Prisma AIRS when
- Your organization is already standardized on Palo Alto Networks and you want Portkey’s capabilities integrated into your existing Prisma security stack.
- Your primary concern is AI security within a broader SASE/Zero Trust architecture.
- You are comfortable with roadmap and pricing decisions made by a large enterprise security vendor.
Choose Tetrate Agent Router when
- You need an independent AI gateway not tied to a security-platform vendor’s roadmap.
- You are running agents across multiple teams, regions, or providers and need a single governed control point.
- Compliance, audit, or data-residency requirements drive your architecture.
- You want to build on the Envoy AI Gateway data plane — maintained by the team that created it.
Now Available
MCP Catalog with verified first-party servers, profile-based configuration, and OpenInference observability are now generally available in Tetrate Agent Router Service. Start building production AI agents today with $5 free credit.
Frequently asked questions
Is Tetrate Agent Router a Portkey alternative? Yes — both expose an OpenAI-compatible endpoint. The difference is now also about vendor independence: Portkey is part of Palo Alto Networks’ Prisma AIRS platform; Tetrate Agent Router is an independent product built on Envoy AI Gateway by its creators.
Does Portkey still support self-hosted deployment post-acquisition? Portkey offered a self-hosted enterprise option before the acquisition. Verify current availability with Palo Alto Networks — post-acquisition roadmaps often consolidate deployment options toward the acquirer’s preferred model.
Which has better observability? Portkey was purpose-built for app-layer observability and strong there — now extended with Palo Alto Networks’ Chronosphere integration for infrastructure-level telemetry. Tetrate adds attribution, identity binding, and immutable audit across teams. These address different layers and are not directly comparable.
What does the Palo Alto Networks acquisition mean long-term? Portkey is now the foundational AI gateway inside Prisma AIRS. Palo Alto Networks’ stated goal is a unified AI security platform. For buyers evaluating Portkey as a standalone AI gateway, the product they are buying today is on a path toward deeper platform integration — with the pricing, roadmap, and exit dynamics that typically follow enterprise security acquisitions.
Compare other gateways: vs. Kong AI Gateway · vs. Bifrost · vs. Cloudflare AI Gateway · vs. Envoy AI Gateway (OSS) · vs. LiteLLM
See the full 2026 enterprise AI gateway comparison.
MCP Catalog with verified first-party servers, profile-based configuration, and OpenInference observability are now generally available in Tetrate Agent Router Service . Start building production AI agents today.
