io.github.AetherAI3/agent-browser
agent-browser
Self-hosted Chrome for AI agents, with a live noVNC view a human can take over.
alive probed 2026-10-15
9tools
1.5ktokens in Claude Opus 5.5
1.6ktokens in Claude Code
0.7 %of a 200k context window
812o200k_base estimate
109 msto initialize
4 msto list tools
- Run it
- npx -y aether-browser@0.2.2 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- agent-browser 0.2.2
- Capabilities
- tools
- Instructions
- 401 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-15. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/AetherAI3/agent-browser
- Website
- https://aetherai3.github.io/agent-browser/
- Registry
- active, updated 2026-09-04 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| browser_press | 176 | 22 % |
| browser_type | 126 | 16 % |
| browser_read | 99 | 12 % |
| browser_click | 83 | 10 % |
| browser_navigate | 78 | 10 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.AetherAI3/agent-browser)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.