ghostlab is an open-source CLI tool designed for local end-to-end testing of MCP servers. It enables developers to simulate real user interactions using coding agents, drive tools over multiple turns, score test runs, and render or interact with MCP Apps UI widgets. Ideal for AI developers and QA engineers working with Model Context Protocol setups.
ghostlab is a Testing & QA project. It focuses on testing and evaluating MCP servers by simulating real user interactions with coding agents. ghostlab is an open-source project aimed at AI developers and QA engineers working with MCP servers. The project is open source (MIT). It ships for the command line.
It is developed by sajjadGG, and it first shipped in 2026. The project is developed in the open on GitHub with 62 commits in the last 90 days. Key capabilities include end-to-end testing, agent simulation, and MCP server support. It exposes integrations via an MCP server.
Summary written by a language model from the project’s public pages.
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