agentgateway v1.6.0: Cost Tracking With No Catalog Config
Originally published at webofmike.com on 2026-10-06. The demo repo and every command in it were run before publishing. agentgateway v1.6.0 went GA on October 2. Two features are worth a hands-on look before anything else: a built-in LLM pricing catalog that gives you cost tracking with zero configuration, and per-key CEL rate limiting that buckets quota by any request attribute you pick. I ran…
agentgateway v1.6.0 went into general availability on October 2 with two notable features: built-in LLM pricing catalog for cost tracking with zero configuration, and per-key CEL rate limiting for bucketing quota by any request attribute. The cost tracking used to require hand-maintained tables specifying rates for each API key, but v1.6.0 replaces this with a pre-maintained catalog that agentgateway uses to calculate costs.
The demo shows how to set up route configuration with llm, policies, key-based rate limiting, and per-request logging using CEL expressions for cost data. The per-key rate limiting uses a single CEL expression key, applying independently to each request regardless of the header value. This setup allows independent rate limiting per API key without needing to configure a separate limit for each key.
Written by urgent.news from Dev.to's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
