SearXNG AI Kit vs Code Airlock

Detailed side-by-side comparison to help you choose the right tool

SearXNG AI Kit

🔴Developer

developer-tools

A standalone CLI, Python library, and MCP server that packages the SearXNG privacy-respecting metasearch engine — 180+ search engines with AI research features, no server setup needed.

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Starting Price

Free
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Code Airlock

🔴Developer

developer-tools

A thin CLI wrapper around Docker Sandboxes that runs Claude Code, Codex, or OpenCode in a disposable microVM against a clone of your repo, then brings the work back as ordinary git commits for review.

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Starting Price

$0 (self-hosted)
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Feature Comparison

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FeatureSearXNG AI KitCode Airlock
Categorydeveloper-toolsdeveloper-tools
Pricing Plans1 listed plan1 listed plan
Starting PriceFree$0 (self-hosted)
Key Features
  • • Standalone SearXNG — no server to run; pre-built binaries for Linux and macOS
  • • Search across 180+ engines with categories, language, time range, and safe-search filters
  • • MCP server with web_search, multi_web_search, fetch_url, fetch_urls, and ask tools
  • • Runs coding agents in disposable Docker Sandbox microVMs, a boundary below the agent process rather than inside it
  • • Clone mode by default: the agent works in a private clone while your host repo stays read-only
  • • One-command task runs (code-airlock run "...") using each agent's non-interactive mode

SearXNG AI Kit - Pros & Cons

Pros

  • ✓Zero server setup — a single binary replaces a hosted SearXNG deployment
  • ✓MCP server ships with sensible tools (single, parallel, fetch, ask) and a copy-paste Claude Desktop config
  • ✓CLI Proxy API integration lets you use existing subscription tiers instead of paying per-token
  • ✓Jina.ai-based fetch produces clean readable content instead of raw JS-heavy HTML
  • ✓Free and open source with a Python library for programmatic use

Cons

  • ✗Windows binaries not available — Linux or macOS only
  • ✗Aggregate rate-limiting from 180+ upstream engines still applies — you can get temporarily blocked
  • ✗SearXNG's AGPL-3.0 license means redistribution of modifications has copyleft implications for downstream projects
  • ✗The 'ask' MCP tool routes recursively through the model — heavy queries can burn a lot of tokens
  • ✗Not officially maintained by upstream SearXNG; it's a nikvdp community project

Code Airlock - Pros & Cons

Pros

  • ✓Real security boundary at the microVM level — not just agent-side prompts
  • ✓Host repo stays read-only; every change comes back as a reviewable git commit
  • ✓Multi-agent: swap between Claude Code, Codex, OpenCode with one flag
  • ✓Sandbox never needs GitHub creds — PRs push from the host
  • ✓MIT licensed with npm/Homebrew/curl installs and preflight `doctor` diagnostics

Cons

  • ✗Requires Docker Sandboxes and KVM/virtualization on the host
  • ✗No MCP integration — wraps agents but doesn't extend their tool surface
  • ✗Extra latency vs. running the agent directly on the host
  • ✗Small project (thin wrapper) — you're also depending on the underlying sbx CLI
  • ✗Adds cognitive load: another layer between you and the agent

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Review SearXNG AI KitReview Code Airlock