Side-by-Side Model Context Protocol Comparison
Agent Browser vs Phonebook
In-depth architectural comparison of the Agent Browser and Phonebook 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
Agent Browser
Developer Tools · Local stdio
Quality: 45/100 (Fair) | Auth: No auth required
Phonebook
Developer Tools · Local stdio
Quality: 43/100 (Fair) | Auth: No auth required
Verdict Summary: Choose Agent Browser if you need specialized Developer Tools tools running via a local process. Choose Phonebook if your workspace requires Developer Tools integration with local subprocess execution. Both servers can be configured concurrently in your client's
mcpServers manifest.Which MCP Server Should You Choose?
A
Choose Agent Browser 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).
P
Choose Phonebook 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).
Feature & Specification Comparison
Tools & Capabilities Breakdown
Agent Browser Tools (0)
No explicit tool names declared in metadata yet. Check project README on main listing page.
Phonebook 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).
Agent Browser Configuration
Phonebook Configuration