How do their growth rates compare?

mcp.so has a month-over-month growth rate of -3%; ToolCenter has +3.2%.

How does pricing compare?

mcp.so: Free. Free to browse and use the directory. Advertising, featured placement and claiming listings are handled through the site; no subscription is required for normal browsing. ToolCenter: Free. ToolCenter is free to browse. Vendors can submit their tools, and there is a partnership route for listings; there is no cost for users to search, compare or read editorial content.

What are alternatives to mcp.so and ToolCenter?

Other tools in related categories include Dang.ai, Futurepedia, SkillsMP — Agent Skills Marketplace, Stork, AI Agent Store.

mcp.so vs ToolCenter — Traffic (286.7K vs 66.65K), Pricing & Verdict

Open AI Tools

mcp.so vs ToolCenter — Traffic (286.7K vs 66.65K), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	mcp.so	ToolCenter
Official Domain	mcp.so	toolcenter.ai
Pricing Model	Free	Free
Monthly Visits	286.7K (286,704)	66.65K (66,647)
MoM Traffic Delta	-8.96K (-3%)	+2.05K (+3.2%)
Primary Market & Share	🇺🇸 United States (11.5%)	🇺🇸 United States (12%)
Direct Visits / mo	107.65K	27.25K
User Rating	4.2	3.8
Supported Platforms	Website	Website