Hermes WebUI: review, pricing, security and alternatives

What Hermes WebUI does

Hermes WebUI belongs to the chat interfaces family: multi-model chat interfaces, often self-hostable, with built-in tools, agents and MCP servers. On our grid it ranks #9 of the 17 projects of this family listed in the directory.

It is not an agent in itself: it is a component other agents use (memory, isolated execution, web access, model gateway or monitoring). You pick it based on the agent or framework it has to equip.

You use it from: web app. It can run on your own machine or server.

Who is Hermes WebUI for?

It targets people who want a single chat interface for several models, often self-hosted, with tools and agents plugged in. Typical tasks people give it:

• chat with several models from one window
• share an internal assistant with a team
• connect documents and tools to the chat

It is a good candidate if you prefer doing everything in a browser, with no install and your data must stay on your machines.

Access and human control

Its documentation does not detail the access granted to the agent: check the settings before connecting it to your accounts.

We could not establish whether it asks for human approval before sensitive actions: test it first on an unimportant account or folder.

Hermes WebUI pricing

The code is free, under the MIT licence.

Getting started with Hermes WebUI

1. Install it: the project ships as a Python package (install with pip or uv). The exact command is in the repository README.
2. Start with the minimal example from the docs, then add one tool at a time and check what the agent does with it.
3. Give it a short, checkable task, review the result and its action log, then raise the difficulty step by step.

Security: risk level

The interface stores your API keys and conversation history: protect its access and backups.

Three habits: least privilege (minimal rights, dedicated keys), human approval for irreversible actions, a sandbox for code execution. The AI agent security check reviews your setup in a few minutes.

Project activity and releases

Created on March 30, 2026, the nesquena/hermes-webui repository has 19,160 stars, 2,772 forks and 305 open issues, with 11,436 commits in total. It received changes this month.

Over the last 52 weeks: 9,867 commits, an average of 189.8 per week.

1,709 releases in total; 1 in the last twelve months. Latest release: v0.52.492, on October 21, 2026.

Hermes WebUI vs other chat interfaces

GitHub stars of the best-rated open-source projects in the chat interfaces family. Stars measure attention, not quality: a heavily promoted project collects them fast, a specialised tool will have few.

Hermes WebUI and other chat interfaces at a glance

The 7 best-ranked agents in the same family, 7 of them open source. The score out of 100 only applies to open-source projects; for proprietary services we show the published entry price. A dash marks information the documentation does not state.

How we rated it

Score: 71/100, computed only from public, verifiable data, with no subjective testing or partnership:

• Adoption 27/40: 19,160 stars on a log scale (40 points from about 200,000).
• Activity 24/30: last commit less than a month ago, 1 release in six months, 9,867 commits in a year.
• Framework 20/30: licence, default human approval, self-hosting, model choice and documentation site.

The score does not say whether the agent will succeed at your tasks: it measures how solid the project is. The full grid is on the method page.