MCP Skills testing
Test Agent Skills and MCP together, locally.
Anthropic encourages pairing Skills with MCP, and MCPJam lets you load both and watch a real model use them. Inspect a skill, run it in the playground, and see exactly which tool it calls, without deploying anything.
npx @mcpjam/inspector@latestSkills and MCP in one place
Skills viewer
Inspect the skills a model has available (their definitions and structure) before you test them.
Skills in the playground
Run a real prompt through the LLM playground and watch the model use your skills and MCP tools together, just like in production.
Local, no deploy
Everything runs locally with one npx command, with no tunneling or subscription needed to iterate.
Start testing in seconds
Launch the inspector, load your skills and MCP server, and run a prompt.
npx @mcpjam/inspector@latestFrequently asked questions
Skills are Anthropic's Agent Skills, which pair naturally with MCP. MCPJam lets you load them next to your MCP servers, view them, and run them through a real model in the playground.
Run npx @mcpjam/inspector@latest, connect your MCP server, and use the Skills viewer and LLM playground to run prompts, all locally, with no deployment required.
Yes. The core MCPJam Inspector, including local Skills and MCP testing, is open source and free.
See your skills in action.
Load your Agent Skills and MCP servers and run them through a real model, locally.
Open source · no credit card · ~2 min