The Fork Reshaping MCP Testing: How a 24-Year-Old CTO Is Taking On One of AI’s Biggest Players

Machine Learning Tech Brief By HackerNoon

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A 24-year-old developer built MCPJam, an open-source rival that outpaced Anthropic’s Inspector—and may redefine how AI agents are tested.
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When Anthropic released the Model Context Protocol, it promised a new era of agentic AI—but left developers wanting better testing tools. Marcelo Jimenez Rocabado, a 24-year-old CTO, forked Anthropic’s MCP Inspector to build MCPJam, a faster, more collaborative open-source alternative. Backed by Open Core Ventures and a growing developer community, MCPJam is now shaping the standard for AI server testing, proving that agility and open collaboration can outpace even the biggest players.