signalHacker News Show HN2026-09-28
Show HN: Ghostfox - Self-hosted stealth browser for AI agents
Ghostfox is a self-hosted, open source, MCP-first stealth browser for AI agents, featuring engine-level anti-detect with C++ patches in a Firefox fork. It solves Cloudflare 403s that block about 20% of the web, and offers 43 coherent MCP tools, on-device captcha solvers for 8 families, and a debug cortex. The runtime is Rust-based, and identities are audited 500/500 for coherence.
- for who
- AI agent developers and operators who need reliable, private browsing automation without external cloud dependencies.
- why now
- Newly launched self-hosted stealth browser offers captcha and debug tools for AI agents.
- what changes
- Agents can run stealth browsing entirely on their own infrastructure, avoiding hosted browser risks and improving success rates on protected sites.
- to do
- Install Ghostfox via pip or npm, then wire its MCP tools into an agent's workflow for self-hosted stealth browsing.
key points
- Engine-level anti-detect via C++ patches in own Firefox fork
- 43 MCP tools, native captcha solvers for 8 families, on-device
- 500/500 identity audits, verified against bilibili, hCaptcha, TikTok
#open source#stealth browser#mcp#ai agent
score
score 8 out of 10. 0-10: how dense the facts are, multiplied by how much you can do with them after reading. 8+ means the topic's evidence bar is met: benchmarks and availability for a new model, amount and investors for a funding round, revenue figures for a solo-money story. Below 5 an item does not enter the digest. A press release scores 3 or less, a reprint loses 2, anything older than 14 days loses 1, a headline that misleads loses 3.
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