nyuwaymcpsandbox is an open-source CLI tool for behavioral sandboxing and security analysis of Model Context Protocol (MCP) servers. It helps AI security researchers and developers test and analyze server behavior in a safe environment.
In the LLM eval & observability space, nyuwaymcpsandbox takes a focused approach. It focuses on testing and analyzing the behavior and security of Model Context Protocol (MCP) servers in a controlled environment. It is built as an open-source project for AI security researchers and developers working with MCP servers. nyuwaymcpsandbox is open source under the Apache-2.0 license. nyuwaymcpsandbox is available on the command line.
Behind nyuwaymcpsandbox is Nyuway Cybersecurity, and the product first shipped in 2026. Development happens publicly on GitHub with 34 commits in the last 90 days. PulseGate's similarity index finds few close equivalents — nyuwaymcpsandbox occupies a relatively distinct niche. Key capabilities include behavioral sandbox, MCP server support, and security analysis. It exposes integrations via an MCP server.
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