Honest pros, cons, and verdict on this ai infrastructure tool
✅ Moves routing, provider adapters, tracing, and guardrail hooks out of application code
Starting Price
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Free Tier
No
Category
AI infrastructure
Skill Level
Developer
Arch Gateway review: learn why the project is now Plano, what its routing, guardrails, and tracing do, and what pricing remains unverified.
Arch Gateway is now Plano. The former official GitHub URL redirects to the katanemo/plano repository, whose current README describes Plano as an AI-native proxy server and data plane for agentic applications. This naming change matters: buyers searching for Arch Gateway should evaluate the maintained Plano code and docs rather than assuming an old Arch article represents the current product. The project is Apache-2.0 licensed and says it is built on Envoy. It moves recurring infrastructure—agent routing, model-provider handling, guardrail hooks, traces, and metrics—out of individual agent code and into a separately operated layer.
The integration model is more concrete than the broad AI gateway label. The official example defines agents, provider credentials, listeners, routing, and tracing in YAML. Each agent remains an HTTP service implementing an OpenAI-compatible chat-completions endpoint. Plano can route by model name, semantic alias, or preferences; its example uses a 4-billion-parameter Plano orchestrator to choose weather and flight agents. The README documents zero-code Agentic Signals plus OpenTelemetry traces and metrics, and filter chains for moderation, jailbreak protection, and memory hooks. Those are useful capabilities for teams that otherwise duplicate routing and telemetry in every service.
Arch Gateway (now Plano) delivers on its promises as a ai infrastructure tool. While it has some limitations, the benefits outweigh the drawbacks for most users in its target market.
Arch Gateway review: learn why the project is now Plano, what its routing, guardrails, and tracing do, and what pricing remains unverified.
Yes, Arch Gateway (now Plano) is good for ai infrastructure work. Users particularly appreciate moves routing, provider adapters, tracing, and guardrail hooks out of application code. However, keep in mind arch gateway has been renamed to plano, making old product links stale.
Arch Gateway (now Plano) offers various pricing options. Visit their website for current pricing details.
Arch Gateway (now Plano) is best for Route requests among specialized HTTP agents and Expose several model providers through one compatible endpoint. It's particularly useful for ai infrastructure professionals who need yaml-configured routing between http agents.
There are several ai infrastructure tools available. Compare features, pricing, and user reviews to find the best option for your needs.
Last verified March 2026