Observed arrival · 2026-08-24

HarnessRouter: One API for AI Agent Harnesses

harnessrouter.net Observed source

Editorial interest 82/100 Selection signal · not a rating of the site

An infrastructure layer that lets products run Codex, Claude Code, Hermes, and other agent harnesses with sessions, streaming, files, and artifacts.

Landing page captured for the 2026-08-24 issue.

Field notes

The service organizes several agent runtimes behind a single product-facing API, with sandbox execution, tool orchestration, permissions, retries, sessions, streaming, files, and artifacts handled as backend concerns. Its public materials distinguish harnesses from language models and show a three-step path built around an AGENTS.md instruction file, a user-described idea, and an API key. A benchmark section compares Codex, Claude Code, and Hermes configurations on the same task, while the catalog also lists source-backed harness references.

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$PaidCommerce or pricing visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

ƒJavaScriptBrowser-side code central

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