flecha-browser: Open-source Arc alternative for macOS: a Chromium browser for developers with Spaces, a dev command bar

by lucianodiisouza · MCP Server · ★ 93

Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h

Security audit verdict: SAFE · quality 69/100

None of the 42 rules matched — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against 42 published rules built on the SlowMist agent-security taxonomy, refreshed every 8 hours. Full audit →

The quality score combines nine heuristic checks of the repo and its README: completeness, clarity, specificity, examples, structure, agent readiness, step-by-step content, instruction quality and security notes. It rates how well the project explains itself to an agent, not the code.

arc-alternativearc-browserbrowserchromiumclaude-codedeveloper-toolsmacosmcpmcp-serveropen-source

Quick Facts

Stars93
Forks11
LanguageTypeScript
CategoryMCP Server
LicenseMIT
Quality Score69/100
Open Issues2
Last Updated2026-10-27
Created2026-10-22
Platformsbrowser, claude-code, mcp, node
Est. Tokens~17k

About flecha-browser

Flecha An Arc-style browser for developers, built on a Chromium fork. Arc's interface ideas are rebuilt from scratch; no Arc code is used. Docs: flecha.dev/docs Why Arc's vertical sidebar, Spaces and Peek are hard to give up, and Arc is no longer where the work is happening. Flecha is a replacement that keeps those ideas and adds tools for the people who build websites.

Compatible Skills

These tools work well together with flecha-browser for enhanced workflows:

  • arc — semantic(0.48)+complementary+same_lang+similar_pop+shared_platform (67%)
  • open-chatgpt-atlas — semantic(0.25)+complementary+shared_fw(react)+same_lang+similar_pop+shared_platform (67%)
  • ai-browser — semantic(0.24)+complementary+shared_fw(react)+same_lang+similar_pop+shared_platform (66%)
  • pi-agent-browser-native — semantic(0.18)+complementary+shared_fw(react)+same_lang+similar_pop+shared_platform (64%)

flecha-browser alternative? Top 6 similar tools

Looking for a flecha-browser alternative? If you're comparing flecha-browser with other mcp server tools, these 6 projects are the closest alternatives on Agent Skills Hub — ranked by topic overlap, star count, and community traction.

  • daymon by daymonio · ⭐ 365

    Daymon puts your favorite AI to work 24/7. It schedules, remembers, and orchestrates your own virtual team. Fr

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    Claude in Chrome, reverse-engineered and open-source. No domain blocklist. Any Chromium browser. Same 18 MCP t

  • mcp-fusion by vinkius-labs · ⭐ 204

    MCP Fusion - The framework for AI-native MCP servers.

  • claude-chromium-native-messaging by stolot0mt0m · ⭐ 82

    Enable Claude in Chrome extension to work with alternative Chromium-based browsers (Brave, Arc, Vivaldi, Edge,

  • chrome-devtools-mcp by benjaminr · ⭐ 309

    An MCP Server for Chrome DevTools, following the Chrome DevTools Protocol. Integrates with Claude Desktop and

  • api200 by API-200 · ⭐ 257

    API 200 is an open source API gateway to simplify 3rd-party integrations. Import endpoints, set up caching, re

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How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy: 42 published rules, covering credential harvesting, data exfiltration, curl | sh installers and more. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

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