Istio 1.31 Adds Agentgateway as a Waypoint, Giving AI Agent API Traffic Its Own Proxy

Wed, 07 Oct 2026 00:00:00 +0000

Istio 1.31 is out, and one line in the release notes says a lot about where API infrastructure is heading. You can now run agentgateway, a proxy built for AI agent and MCP traffic, as a waypoint inside the mesh.

If “waypoint” means nothing to you yet, that’s fine. Here’s the short version, then why it matters if you build APIs.

What changed in 1.31

Istio’s ambient mode splits the mesh in two. A small per-node component handles encryption and basic connectivity. Anything that needs to understand HTTP, like routing, auth policy or rate limits, goes through a separate proxy called a waypoint. You opt services into a waypoint with a label.

API Gateways: What They Do and When You Need One

Sat, 02 May 2026 00:00:00 +0000

An API gateway is a server that sits between clients and backend services, acting as the single entry point through which all API traffic passes. Every request goes through the gateway, which can inspect, modify, authenticate, route, transform, and rate-limit that traffic before it reaches any backend service. For teams running multiple services, an API gateway centralizes concerns that would otherwise be duplicated across every service independently.

Understanding what a gateway provides — and what it does not — is the prerequisite to deciding whether one belongs in your architecture.

API Gateways on API Course

Istio 1.31 Adds Agentgateway as a Waypoint, Giving AI Agent API Traffic Its Own Proxy

What changed in 1.31

API Gateways: What They Do and When You Need One