Side-by-Side Model Context Protocol Comparison
404.directory vs Frontier
In-depth architectural comparison of the 404.directory and Frontier MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
404.directory
Developer Tools · Local stdio
Quality: 40/100 (Fair) | Auth: No auth required
Frontier
Developer Tools · Remote HTTP/SSE
Quality: 30/100 (Emerging) | Auth: No auth required
Verdict Summary: Choose 404.directory if you need specialized Developer Tools tools running via a local process. Choose Frontier if your workspace requires Developer Tools integration with remote web transport. Both servers can be configured concurrently in your client's
mcpServers manifest.Which MCP Server Should You Choose?
4
Choose 404.directory when:
- You need dedicated capabilities in the Developer Tools domain.
- You prefer local stdio subprocess transport architecture.
- Your security boundary fits: No auth required (Free / Open Source).
F
Choose Frontier when:
- You need dedicated capabilities in the Developer Tools domain.
- You prefer remote streaming HTTP/SSE transport architecture.
- Your security boundary fits: No auth required (Free / Open Source).
Feature & Specification Comparison
Tools & Capabilities Breakdown
404.directory Tools (0)
No explicit tool names declared in metadata yet. Check project README on main listing page.
Frontier Tools (0)
No explicit tool names declared in metadata yet. Check project README on main listing page.
Ready-to-Paste Client Configurations
Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).
404.directory Configuration
Frontier Configuration