Definition
Hermes Agent is an open-source agent harness released by Nous Research in early 2026, built around the Hermes model family and optimized for long-horizon task execution with MCP tool use.
In Depth
Hermes Agent ships with a terminal-first harness, a tool gateway pattern, and first-class MCP integration. It has become a popular alternative to Claude Code and OpenClaw for teams that want an open model under the hood. Scavio is frequently paired with Hermes Agent via MCP because the harness's long-horizon loops benefit from structured search responses.
Example Usage
A team evaluating Hermes Agent against Claude Code benchmarked a 40-step research task with Scavio as the shared search tool.
Platforms
Hermes Agent is relevant across the following platforms, all accessible through Scavio's unified API:
- YouTube
Related Terms
Agent Harness
An agent harness is the runtime and orchestration layer around an LLM that decides when to call tools, how to manage mem...
MCP Connector
An MCP connector is an implementation of the Model Context Protocol that exposes tools and data resources to any MCP-com...
Tool Gateway
A tool gateway is a shared service that sits in front of an agent's external tools to centralize authentication, rate li...