Hermes Agent Ships Plugin Catalog With 100 Pre-Vetted Extensions

On September 16, 2026, Nous Research shipped the Plugin Catalog for Hermes Agent, turning the agent's extension system into a curated, review-gated distribution platform[^1]. The catalog ships with 100 plugins at launch — 4 official and 96 community — plus 65 curated MCP servers, all PR-reviewed before inclusion.

[^1]: Nous Research. "Hermes Plugin Catalog." X (Twitter). September 16, 2026.

What changed

Before the catalog, connecting an MCP server to Hermes meant finding a compatible server on GitHub, editing config.yaml by hand, sourcing API keys, and restarting the agent. The Plugin Catalog replaces that workflow with two commands:

• hermes mcp catalog — browse available MCP servers
• hermes mcp install <name> — install with an interactive tool picker

When you run hermes mcp install, Hermes probes the server, lists every tool it exposes, and lets you enable only the ones you want. No YAML editing, no hunting for environment variables.

hermes plugins search covers the broader plugin catalog — desktop mods, memory systems, voice, video, browser tools, and automation.

What ships

The 65 MCP servers cover the most common agent-tool surfaces:

| Category | Services | |---|---| | Development | GitHub, GitLab, Linear, Stripe | | Design | Figma | | Monitoring | Datadog, Sentry, Grafana | | Knowledge | Notion, Dropbox | | Infrastructure | Vercel, Cloudflare, n8n | | Data | Supabase, PayPal, Plaid |

Community plugins are SHA-pinned and manually reviewed for quality and security before inclusion. The plugin system is gated behind hermes tools — tools register only when explicitly enabled, matching the same opt-in model the MCP catalog uses.

How it fits the broader picture

The catalog continues a pattern Nous Research has been building across the v0.15.x line: reducing configuration friction for agent tool setup. The v0.15.0 release in May 2026 introduced the first MCP catalog with 2 entries (n8n, Linear). The September 2026 expansion to 65 servers and 100 plugins is a direct continuation of that work.

The practical impact is measurable in setup time. Connecting Linear + Stripe + Notion to a Hermes agent went from manual config edits and env var sourcing to hermes mcp install linear && hermes mcp install stripe && hermes mcp install notion with interactive prompts for API keys.

What to watch

• Coverage gaps: The catalog is strong on developer tools and weaker on niche verticals. Community submissions fill gaps but require Nous review.
• Version pinning: The manifest schema pins refs at install time. Upgrades are manual via hermes mcp install <name> again — no automatic updates yet.
• Action endpoints: For X/Twitter automation, the separate hermes-tweet plugin uses read/action splitting — action endpoints are disabled by default and require HERMES_TWEET_ENABLE_ACTIONS=true.

The catalog turns Hermes Agent from a manually configured toolkit into something closer to an app store for agent capabilities. The one-keystroke install path from discovery to working tool is the most practical improvement in the agent ecosystem this quarter.