· Harness/ Head to head

Claude Code vs Hermes Agent

The deciding difference is operational: Hermes Agent can run on infrastructure you control, Claude Code cannot. If that constraint is real for you, it settles the choice before anything else is considered.

Claude Code

Anthropic's coding agent — terminal, IDE and SDK, with hooks, skills and MCP built in.

Proprietary · paid · hosted service only

Configure via .claude/settings.json; drop reusable procedures in .claude/skills/.

Hermes Agent

Self-improving agent from Nous Research — writes its own skills from experience and carries them forward.

Open source · can be self-hosted

The learning loop is the point: it creates skills after complex tasks and searches its own past sessions. Runs anywhere from a $5 VPS to Modal or Vercel Sandbox.

· Side by side/ 5 of 6 differ
Claude CodeHermes Agent
LicenceProprietaryOpen source
Pricingpaidopen source
Self-hostableNoYes
LanguagesAny languageAny language
Installnpm install -g @anthropic-ai/claude-codecurl -fsSL https://hermes-agent.nousresearch.com/install.sh | bash
Keys requiredANTHROPIC_API_KEYNone
· Common questions/ FAQ

What is the difference between Claude Code and Hermes Agent?

The deciding difference is operational: Hermes Agent can run on infrastructure you control, Claude Code cannot. If that constraint is real for you, it settles the choice before anything else is considered. Claude Code: Anthropic's coding agent — terminal, IDE and SDK, with hooks, skills and MCP built in. Hermes Agent: Self-improving agent from Nous Research — writes its own skills from experience and carries them forward.

Can Claude Code and Hermes Agent be self-hosted?

Claude Code is a hosted service only. Hermes Agent can run on your own infrastructure.

Are Claude Code and Hermes Agent open source?

Claude Code is proprietary (paid). Hermes Agent is open source (open source).

Build a stack with Claude CodeAll harness options
· For agents/ This page, machine-readable

Every page here answers to Accept: text/markdown and returns the same content at roughly a tenth the tokens. No separate site, no toggle — same URL.

curl -s -H "Accept: text/markdown" https://newagent.build/compare/claude-code-vs-hermes-agent